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Apr 18 2019

Ascension Mk1 Flight 4 (Capsule Test Flight 1)

Changes to the elevator fin angle will allow for greater pitch-down control authority and the first test of the Mk1 space capsule on a sub-orbital flight will take place in a similar manner to the test payload from the previous mission

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Kerbal Space Agency @KSA_MissionCtrl
the results are finally in from last month's Ascension Mk1 flight and there's still a lot of work to be done since much of the data was inconclusive in determining key aspects of the flight profile that we plan to send kerbals along kerbalspace.agency/?p=8614

Tue Feb 12 17:14 EST 2019

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Kerbal Space Agency @KSA_MissionCtrl
this flight analysis was also conducted in part with the Progenitor team, who were working on the finishing touches to the Progeny Mk7 design when Ascension made some requests for technology they'd like to see prototyped. Stay tuned for details next week!

Tue Feb 12 17:15 EST 2019

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Kerbal Space Agency @KSA_MissionCtrl
the Ascension Mk1 capsule has been flight certified! The current one has undergone too many tests to safely carry an astronaut, but we can still use it for the next Ascension flight as a test vehicle. A new capsule for the first crewed flight is currently under construction

Tue Feb 19 12:49 EST 2019

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Kerbal Space Agency @KSA_MissionCtrl
before we can announce the date of the next Ascension mission we have to wait for the VAB crews to complete their modifications to the rocket fins for the next vehicle. Lead Engineer Simon reports they hope to wrap things up by the end of the week

Tue Feb 19 12:51 EST 2019

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Kerbal Space Agency @KSA_MissionCtrl
additional Ascension news includes a look at the complete assembly of the Mk1 capsule. Decision has been made for the Launch Escape System to undergo a pad abort test prior to the next Ascension launch, which will push it back closer to the middle of March
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Thu Feb 21 17:18 EST 2019

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Kerbal Space Agency @KSA_MissionCtrl
Lead Engineer Simon reports the horizontal fins for the next Ascension Mk1 lifter have been removed and meticulously replaced at a 5Β° angle to cause the rocket to naturally nose downwards. Seems slight, but these fins are quite large & will have a noticeable effect

Fri Feb 22 15:04 EST 2019

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Kerbal Space Agency @KSA_MissionCtrl
assuming the next Progeny Mk6-I launches on time we will have the Ascension Mk1-I out on the pad two days later for its LES test on 3/7. If that goes well, the capsule LES will be replaced & capsule re-integrated w/rocket over the following week for launch on 3/14

Fri Feb 22 15:05 EST 2019

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Kerbal Space Agency @KSA_MissionCtrl
our week of operations has concluded, be sure to check out our Weekly Ops Report to get all the information on what has transpired: kerbalspace.agency/?p=8769 (BTW new altitude record is 8.683km ASL)
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Fri Feb 22 21:15 EST 2019

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Kerbal Space Agency @KSA_MissionCtrl
work on the next Ascension Mk1 and Progeny Mk6 rockets proceeding apace in the VAB. Lead Engineer Simon has reported all remains on schedule for our next launch attempt the following week: ops.kerbalspace.agency/?vessel=progen…

Fri Mar 01 14:29 EST 2019

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Kerbal Space Agency @KSA_MissionCtrl
monolith temple A/C install was completed over the weekend however the system broke down shortly after it was turned on. Contractor has looked into the issue and says it will take the remainder of the week to repair. New L-0 for next launch is now 3/12 @ 18:10 UTC

Mon Mar 04 15:48 EST 2019

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Kerbal Space Agency @KSA_MissionCtrl
It was actually scheduled for 3/7 but yes the Ascension schedule will be pushed back as well - it is taller than the launch towers and we don’t want to risk a storm developing if it is brought out to the pad and switched on twitter.com/rocketbeing/st…

Mon Mar 04 17:42 EST 2019

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Kerbal Space Agency @KSA_MissionCtrl
up it goes! The Mk1 capsule begins integration today with the Ascension Mk1 lifter while the next Progeny Mk6 waits in the background for its launch attempt the following week. Note the RCS thrusters, which we neglected to include in the infographic released last month
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Thu Mar 07 12:06 EST 2019

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Kerbal Space Agency @KSA_MissionCtrl
there are no nose thrusters hidden under the escape tower, the capsule can pitch/yaw/roll just fine with the thrusters mounted near the base, and while it can only thrust in one direction, it can re-orient itself to push along whatever vector is needed

Thu Mar 07 12:07 EST 2019

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Kerbal Space Agency @KSA_MissionCtrl
additionally of note, the heat shield seen in the last posted image is a mock-up, since it will be dropped shortly after chute deploy during the LES pad abort test. The real one will be attached prior to the actual launch

Thu Mar 07 12:11 EST 2019

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Kerbal Space Agency @KSA_MissionCtrl
recap and learn more about the events from this past week via our Ops Summary, including the return of a Desk Note now that @DKerman_KSA is back from his trip to Sheltered Rock kerbalspace.agency/?p=8811
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Fri Mar 08 17:00 EST 2019

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Kerbal Space Agency @KSA_MissionCtrl
we have liftoff!! Lower 0.625m booster has ignited with an intial force of 67.2kN to push the rocket off the pad at ~4Gs. It will burn for ~34 seconds and stage a second later. The rocket will then coast until its nose drops 1.5Β° before igniting the 2nd stage SRB
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Tue Mar 12 15:00 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
post-launch operations wrapping up, which included hauling the Progeny launch base back to the VAB so tomorrow pad workers can install the Ascension engine clamp in its place. MSV Tongjess returned the splashed down weather balloon & has returned to port in Umbarg

Tue Mar 12 17:04 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
Ascension engine clamp has been installed out on the launch pad for tomorrow's rollout and pad abort test. Rocket has been loaded up onto the carry vehicle in the VAB. Test is currently scheduled for 18:30 UTC

Wed Mar 13 16:10 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
high winds have prevented us from completing rollout of the Ascension Mk1, mainly the process of lifting the rocket vertical. We should have better conditions later today if a nearby storm system stays out to sea as forecast. New test time is 3/15 @ 00:45 UTC

Thu Mar 14 09:49 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
forecast models are still not very reliable unfortunately and the storm system has moved inland. Pad abort test has been scrubbed for today. We will make another attempt tomorrow with rollout after 2nd sunrise and test scheduled for 19:00 UTC

Thu Mar 14 15:52 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
we were able to complete rollout of the Ascension Mk1 earlier this day cycle and it is now vertical on the pad. Only the top umbilical is attached to supply power to the capsule, which will be switched on to begin preflight after 17:30 UTC
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Fri Mar 15 10:40 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
with the sun fully set, the Monolith temple chill down has begun. We considered leaving it alone to see if storms formed as this is a different rocket design but being already behind schedule we want to avoid further delays & any damage to the rocket itself from lightning

Fri Mar 15 11:16 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
LES test proceeding as scheduled. Monolith temple chilled - once stable temps confirmed the rocket will be powered on to load test routines and prepare the systems for action. Pad crew is pulling back to 100m and standing by for recovery after the test

Fri Mar 15 13:30 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
all systems looking good, now just over an hour away from test time we are holding and still making sure no storms are forming. Final test preparations will commence at 18:45 UTC if weather conditions remain stable

Fri Mar 15 13:57 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
15min until test! Weather remains stable, final arming and system checks are underway now in launch control under the watchful eye of Flight Director Lanalye. Astronauts are also here to witness what they could possibly have to endure someday (hopefully never though)

Fri Mar 15 14:45 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
5min until test. LES is armed for abort procedure and flight computer is standing by for the command to initiate. If all goes well the capsule will be rocketed away on an arc that takes it clear of the launch pad, then deploy chutes, drop the heat shield and land

Fri Mar 15 14:55 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
test complete! That - did not quite go exactly as planned. FD Lanalye is still having her team do a quick review of video & telemetry data to determine exactly what went wrong but at least we can report the capsule appears to have somewhat survived

Fri Mar 15 15:02 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
more information coming in now that pad workers have reached and inspected the capsule. Lead Engineer Simon reports heavy damage to the exterior that likely renders it unfit for future missions. LES tower is thankfully mostly intact so we can study what went wrong with it

Fri Mar 15 15:19 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
here's an enhanced image from the video footage showing all 5 solid rocket motors on the LES firing very late into the abort burn. This is improper behavior indicating a design flaw - top motor only supposed to fire a short duration to tilt capsule away from rocket
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Fri Mar 15 15:23 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
capsule & LES are being moved back to the VAB while pad crews begin to dismount the Mk1 lifter to roll it back to the VAB - the first time we've taken one down after setting it up. Video of the abort test will be posted later today before our Ops Summary

Fri Mar 15 15:46 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
here's how the pad abort test went down earlier today. Poor Bob managed to turn even greener watching it. Greggery the test dummy was aboard and only had to suffer through just under 5Gs of force during the tumble. Capsule flew about 70 meters from the pad
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Fri Mar 15 16:55 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
chutes normally deploy in about 8sec but they are reefed to allow safe deceleration at transonic speeds. This low in atmo & moving slower when allowed to deploy fully without reefing they can arrest descent in just over 2sec - it was barely enough to spare the capsule!

Fri Mar 15 16:56 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
learn more about today's semi-successful launch escape system pad abort test and more happenings from this past week in our Ops Summary: kerbalspace.agency/?p=8845 Sadly yes, this will delay getting a kerbal aboard for a sub-orbital flight
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Fri Mar 15 18:00 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
LES solid rocket pitch motor atop the tower is confirmed to simply be the same as the push motors, which means the simple fix is to replace the pitch motor on the 2nd LES meant for flight with the proper one and test again, altho whether the capsule can be reused still a question

Mon Mar 18 11:34 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
Lead Engineer Simon has confirmed the test capsule is no longer structurally fit for flight. New capsule is set to arrive next week, will undergo inspection the following week and then begin integration for flight. Next Ascension Mk1 launch date NET 4/16

Wed Mar 20 12:34 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
although not capable of flight, the test capsule can still work for another LES pad abort test. It will be re-integrated with the fixed LES tower and mounted to a different Mk1 lifter (we have 3 other ones ready). Re-test will take place next week on 3/27

Wed Mar 20 12:36 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
operations are in a bit of a lull right now but still there are things to report in our weekly Ops Summary: kerbalspace.agency/?p=8859 everyone have a happy weekend!
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Fri Mar 22 18:00 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
Mk1 capsule test article was re-integrated with the dummy heatshield and fixed Launch Escape System tower yesterday. Today it is being re-mounted atop an Ascension Mk1 lifter. All remains on schedule for another pad abort test of the LES tomorrow at 19:30 UTC

Tue Mar 26 09:20 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
we were unable to get the Mk1 rocket/capsule out to the pad this day cycle due to adverse weather conditions. The pad crew is capable of mounting at night and as soon as conditions improve they will begin work to get everything set up for a test later today closer to 3rd sunset

Wed Mar 27 11:17 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
Ascension LES pad abort test is now scheduled for tomorrow, 19:50 UTC. Rocket was moved out to the pad however a mechanical issue arose with the arm that lifts the rocket vertical. After trying to fix it out on the pad the vehicle has now been rolled back to the VAB for repairs

Wed Mar 27 14:36 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
Mk1 lifter and capsule have successfully been rolled out and mounted on the launch pad, configured the same as last time with the single umbilical connected to provide power to the capsule for the test, which remains on schedule for later today @ 19:50 UTC
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Thu Mar 28 10:17 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
sun is rising and preparations are underway to begin powering up the capsule and run through pre-test checks. Monolith chilldown was begun earlier and while we still have some time buffered in to account for any serious weather, we don't expect any
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Thu Mar 28 14:44 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
30 minute to LES pad abort test, rocket is online and all systems are nominal. Team is now holding to ensure weather continues to cooperate. Pad crews are finishing securing the rocket and clearing back to prepare for recovery operations

Thu Mar 28 15:20 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
10 minutes to test! Weather remains green, Flight Director Lanalye and her launch team are back to work arming the abort system and finalizing the capsule for its ejection from the stack

Thu Mar 28 15:40 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
5 minutes! Unlike our first test, the adjusted LES tower should now angle the capsule up and away a good distance from the rocket as the kick motor at the top of the tower will not fire with the same duration as the 4 push motors at the base. Stand by!

Thu Mar 28 15:45 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
success! The capsule flew to a height of 384m before coming down under 3 good chutes to land almost 700m from the launch pad. Almost flipped over once but after LES tower jettison aero forces turned it bottom-first along its trajectory for clean chute deploy & heat shield drop

Thu Mar 28 15:53 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
recovery crews confirm the capsule is in good shape and work has begun to get everything back to the VAB. Launch control team is busy already reviewing video footage and telemetry data - we'll get a clip up later today

Thu Mar 28 15:58 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
full video with additional angles will be posted tomorrow but here's a look at the capsule flying up into the air and nearly out of sight into the distance from the launch tower camera. Now that's more like it!
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Thu Mar 28 18:05 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
the new Mk1 capsule has arrived on schedule, which means the next Ascension Mk1 launch also remains on schedule, still slated for no earlier than 4/16. We will be able to lock in a launch date next week once the capsule is through preliminary inspections

Fri Mar 29 09:39 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
full video of yesterday's LES pad abort test now available. Data review shows everything worked perfectly. The LES will be integrated for the next Ascension launch even tho it will be uncrewed to ensure it doesn't upset the rocket's flight youtube.com/watch?v=zubZ6G…

Fri Mar 29 14:14 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
next week we will have another LES pad abort test to see if we can still send the capsule off the flight path of the rocket or to the side while on the pad if the kick motor fails. In that scenario, one of the push motors will fire off a split second earlier than the others

Fri Mar 29 14:15 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
another week behind us, catch up on all that happened with additional details via our Ops Summary: kerbalspace.agency/?p=8899 have a relaxing weekend, everybody!
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Fri Mar 29 17:00 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
test capsule is being re-integrated today with the dummy heatshield (now rather beat up but still usable) and LES tower to prep for its third pad abort test at the end of the week, currently targeting 20:00 UTC

Tue Apr 02 10:20 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
Mk1 capsule is checked out & ready to begin integration which means we now have a date for the next Ascension launch!

πŸš€ 4/18 @ 20:12 UTC πŸš€

Learn more about the mission and the rocket via the Ops Tracker: ops.kerbalspace.agency/?vessel=ascens…
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Thu Apr 04 14:53 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
Lead Engineer Simon has reported the test rocket completed integration in the VAB today and has been laid horizontal on the carry vehicle for rollout tomorrow after 2nd sunrise. Pad abort remains on schedule for 20:00 UTC

Thu Apr 04 17:31 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
30 minutes to pad abort test. Rocket was rolled out and mounted the previous day cycle, Monolith is chilled and capsule is powered up. FD Lanalye and her team are beginning their system checks while pad crews close out and pull back to prep for recovery operations

Fri Apr 05 15:30 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
pad abort test in 5 minutes! A single push motor will light off just 2 milliseconds before the other three to tip the capsule over slightly before it flies up and away. At least, that is the plan. Stand by...

Fri Apr 05 15:55 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
recovery crews report the capsule has landed without issue around 800m from the launch pad. Flight data shows it reached a height of just over 300m, nearly as high as the last test. Kerzzah! This fine-control over the LES motors is just the beginning of our plans...

Fri Apr 05 16:03 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
preliminary review of telemetry data and video footage confirm the test went off as planned. You can barely see the difference in motor ignition but it's there. LES tower impacts first (with unspent kick motor making a bit of boom) followed by heat shield after full chute deploy
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Fri Apr 05 17:06 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
end of the week is here at last! Catch anything you may have missed in our Ops Summary: kerbalspace.agency/?p=8916 we suggest all our rocketry crews get some rest this weekend - launch campaign for the next Ascension mission kicks off in earnest next week!
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Fri Apr 05 18:00 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
final assembly for next week's launch is well underway on the Ascension side of the VAB with the lifter in place for stacking the capsule later this week after it finishes integration. Wondering where the RCS blocks went from last week's capsule test? Wonder no more!
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Mon Apr 08 17:33 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
one week to our next launch (ops.kerbalspace.agency/?vessel=ascens…) and while the rocket gets ready in the VAB work has also been done out on the launch pad to ensure that it is all set to support the launch. Photo taken just a short while ago at 3rd sunset
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Thu Apr 11 18:41 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
we bet you all thought *next week* was going to be the exciting one! We made quite a few ambitious announcements this past week, so let's take a closer look at what still needs to be done to get something up into orbit in our Ops Summary: kerbalspace.agency/?p=8935
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Fri Apr 12 17:00 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
with this week's launch fast approaching, the Ascension Mk1 lifter in the VAB has been fully stacked, laid horizontal and will be undergoing final closeouts today in preparation for loading onto the carry vehicle for transportation out to the pad tomorrow

Tue Apr 16 10:13 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
our order for 3 additional K2-X engines, scheduled to be filled at the end of this month, remains on hold until the completion of the investigation into the explosion that occurred during static firing back at the end of Feb. Extra checks were made on the engine for this launch

Tue Apr 16 13:37 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
Sheltered Rock and Ockr have confirmed they are both ready to deliver downrange tracking for this week's launch. For orbital launches, we also have DSN Central. Nothing to the south? No worries - anything we launch south will also eventually pass over areas north of the equator
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Tue Apr 16 17:21 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
the rocket has left the VAB and is doing the slow(er) roll to the launch pad, putt-putting along at just 1m/s (slightly faster than the average walking kerbal) taking ~11 minutes to travel to the pad 655m away. It used to travel a bit faster but w/capsule the mass is near limits
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Wed Apr 17 09:54 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
mounting has been completed without issue, the Ops Tracker is now updated with dry mass/resources information (ops.kerbalspace.agency/?vessel=ascens…). Pad crew now working to get the launch tower umbilicals connected while the rest of KSC also works through launch readiness checks

Wed Apr 17 12:09 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
Flight Director Lanalye has been rehearsing her team hard for the past 2 weeks and reports they are ready to support tomorrow's launch, which will be conducted as an automated flight since it will just be the test dummy Greggery going for the ride (tho capsule ECLS is supplied)

Wed Apr 17 15:11 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
tracking station has confirmed they are ready to monitor tomorrow's launch and coordinate with the downrange stations. We also have confirmation that MSV Tongjess has left port in Umbarg to set sail for the recovery zone - hopefully the payload makes it there this time!
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Wed Apr 17 16:28 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
final readiness review is complete, Ops Dir @DKerman_KSA has signed off the paperwork and we are πŸš€ GO FOR LAUNCH πŸš€!! Weather is looking great with over 95% chance of favorable conditions. Pre-launch operations will kick off tomorrow at 15:42 UTC. Get hype!!
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Wed Apr 17 18:33 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
πŸŒ…Sunrise/SunsetπŸŒ„
@ KSC (UTC-4)

4/18
#2πŸŒ„07:12:45 πŸŒ…09:26:30
#3πŸŒ„13:13:36 πŸŒ…15:27:21 !!πŸš€!!
#4πŸŒ„19:14:27 πŸŒ…21:28:12

4/19
#1πŸŒ„01:15:18 πŸŒ…03:29:03

Thu Apr 18 07:00 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
Monolith temple has been closed up and chilldown has begun to lower the internal temperature to below freezing by the time the rocket is switched on, robbing it of the heat energy needed to form severe storms and endanger the launch

Thu Apr 18 08:26 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
[L-4h30m] pre-launch operations officially kicking off as all teams report for duty. Shuttle buses for visitors viewing the launch will begin to run across the causeway from the Support Village in 30min. We will have updates at the following milestones in the countdown
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Thu Apr 18 11:42 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
[L-4h] launch team has assembled for their final briefing from Flight Director Lanalye. Here's a comprehensive look at today's mission, which will be similar to the last flight except using the actual capsule instead of a test weight. Also some LES usage experimentation
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Thu Apr 18 12:12 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
the previous mission attempted a similar trajectory but the rocket did not have enough pitch authority to lower its nose far enough. This rocket's elevator fins are themselves pitched to provide downward force in addition to the control surfaces, tho ascent is a bit steeper

Thu Apr 18 12:13 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
additionally the flight profile had to be adjusted to account for the capsule weighing more than anticipated, mainly due to not factoring in the LES on the last flight. Result is the rocket will now carry a full load of fuel to haul the extra ~300kg on a similar trajectory

Thu Apr 18 12:15 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
finally, the timeline & data in the previous images are known to be approximations - the rocket will not follow the ascent trajectory perfectly even if it does manage to pitch over faster due to software guidance limitations. But it should be close enough for similar results

Thu Apr 18 12:16 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
[L-3h30m] launch team is rdy, Monolith temple is chilled & we have a GO from the weather desk to begin preflight by waking up the rocket to prepare for tanking operations. Capsule is fully-automated - when kerbed it will simply be more resilient to failure via manual operation

Thu Apr 18 12:42 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
check out bit.ly/AFCS_ChangeLog for the latest software update, which is quite large to take into account the many operations of the capsule and new Launch Escape System

Thu Apr 18 12:49 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
[L-3h15m] tanker trucks are already hooked up to the service tower, fuel system is initialized, valves are open and the GO has been given by the launch team to begin onloading propellants, totaling 7 metric tons of liquid fuel and oxidizer
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Thu Apr 18 12:57 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
[L-2h40m] sun has set and tanks are topped off after the trucks each made a trip back to the VAB for refueling. Pad workers are cleaning up while the launch team continues preflight, keeping a close watch on tank levels to ensure there are no leaks present

Thu Apr 18 13:32 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
as usual, it is important everyone stick to the designated viewing areas if you are here to spectate the launch. Anyone seen entering the 500m keep out radius will be escorted off campus. If it happens after L-15m you'll also hold up the entire countdown! How about no
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Thu Apr 18 13:50 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
[L-1h55m] preflight continues without major issue, now coming up on engine checkouts which require the pad crew to evacuate. Rocket remains unarmed but always better safe than sorry when dealing with something as combustible as rockets

Thu Apr 18 14:17 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
[L-1h30m] countdown continues on schedule. With preflight wrapping up focus shifts off the rocket and to the surrounding/supporting infrastructure. Pad is being closed out & secured while Range Safety Officer works with MSV Lymun, on station offshore, to setup range monitoring

Thu Apr 18 14:42 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
[L-1h20m] high-altitude KerBalloon has been released from the deck of the Lymun as light winds are blowing off the sea today. It will ascend above 18km into the upper atmosphere shortly before final poll to give us an idea of what upper-level wind conditions are like

Thu Apr 18 14:52 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
[L-45m] launch control is performing a final check of the onboard software and then running a launch rehearsal to ensure all systems and assets are setup and properly configured for the mission. Lanalye also likes to sometimes throw in some issues as well

Thu Apr 18 15:27 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
[L-30m] Final countdown! No problems arose during rehearsal and weather is still green. Final health checks of various systems are underway and the last pad workers are loading up to be trucked away from the rocket so it can be armed for launch

Thu Apr 18 15:42 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
[L-15m] RSO has closed the range, rocket is ARMED and Flight Termination System, including the LES, is ACTIVE. Arming allows a few final checks to be performed on the engine. Weather desk is analyzing upper-wind data just now coming in from the balloon probe
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Thu Apr 18 15:57 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
[L-13m] nitrogen gas has started to get pumped onto the rocket from a service truck left hooked up to the tower. The pressurized gas is loaded late to prevent any injury to pad workers should a tank rupture

Thu Apr 18 15:59 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
[L-5m] Final readiness polls complete: Wx: GO; Range: GO; Flight: GO; Tracking Station: GO; Downrange Tracking: GO; Ops Director: Launch permission granted! πŸš€GO ASCENSIONπŸš€ FTS on internal power, service tower booms unlocked to prep for retraction, AFCS ready for terminal count

Thu Apr 18 16:07 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
[L-3m] tank pressurization has begun to ensure that fuel flow to the engine remains constant and also provide extra rigidity to allow the rocket to stand on its own atop the engine clamp after umbilicals swing away prior to launch

Thu Apr 18 16:09 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
[T-2m] we are GO for terminal count. AFCS now has full control of the rocket, which is switching over to internal power and RF comms. Battery drain levels and comm signal will be checked prior to final primary polls at T-30s
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Thu Apr 18 16:10 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
[T-1m] if all is GO at 30s final primary polls then the following steps will take place leading up to launch. Don't forget to tune into the Ops Tracker for real time updates! Stand by! ops.kerbalspace.agency/?vessel=ascens…
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Thu Apr 18 16:11 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
engine startup nominal, chamber pressures good, throttle-up to 1.2TWR successful and we have lift off!! Rocket will clear the tower before going full thrust, saving wear on the pad infrastructure, then enabling guidance control to begin pitching over as it heads downrange
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Thu Apr 18 16:12 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
just over halfway to space and all systems remain nominal. Pitch deflection barely at 50% which means the angled fins are doing their job well. Some roll wobble detected going supersonic but rocket remains stable overall and on the planned track
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Thu Apr 18 16:13 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
hello again, space! Overall ascent was nominal, with acceptable deviation from planned trajectory (MaxQ was late, apokee is low). Control team plotting new course to see how it will affect the rest of the mission. Standing by for capsule separation in just a few seconds
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Thu Apr 18 16:14 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
we are dealing with an unplanned triggering of the Launch Escape System just after capsule separation! Controllers are working to recover the capsule, which has gone into a bit of a tumble. LES tower has burned out and reports that it detached
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Thu Apr 18 16:15 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
RCS system has zeroed out the tumble and capsule has been re-oriented to hold prograde. Rate of turn confirms the LES tower has indeed been detached. Controllers still working to determine any additional ways this unexpected event could affect the mission

Thu Apr 18 16:17 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
they all did. We just wouldn't let them twitter.com/PawelWiatrowsk…

Thu Apr 18 16:19 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
parachute had to be disarmed so it wouldn't try to pop out as soon as the capsule re-entered the atmosphere, but otherwise all systems are looking good. Controllers have begun to send orientation commands to point the capsule various directions & fully check out the RCS system
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Thu Apr 18 16:21 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
capsule is thru apokee - LES tower burn took our original apokee of 423km and boosted it up to 506km. New trajectory puts re-entry ~100km further downrange than planned so Tongjess is already on the move. RCS testing continues - capsule having trouble orienting radial out
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Thu Apr 18 16:25 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
radial out orientation finally achieved after resetting the control system - it seemed to still want to orient along the ascent trajectory & was fighting with radial out hold command. Cold gas almost used up so RCS switched off so capsule can point retrograde before re-entry
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Thu Apr 18 16:28 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
just enough cold gas remained to get capsule re-oriented properly and re-entry is now in progress. During this time, after MaxQ, is when we were going to fire the LES push motors to see how it affected the capsule for potential future use as an emergency braking system
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Thu Apr 18 16:34 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
we lost signal shortly after initial chute deployment but it's good to know at least that they have popped out! Now we must wait and hope - Tongjess is still over 1.5hrs away from the new recovery zone & may not be able to still contact Ockr when they get there
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Thu Apr 18 16:37 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
post-launch operations winding down - KerBalloon probe was returned after splashing down & Lymun has moved off station, launch pad confirmed clear of any debris and all equipment is in good shape. Launch team debrief has wrapped & all data is prepped for review starting tomorrow

Thu Apr 18 17:18 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
βœ¨πŸŽ‰ KERZZAH! πŸŽ‰βœ¨ we have word from MSV Tongjess that they located the capsule still afloat, altho it took extra time to find the heat shield, which detached moments before splashdown to reduce damage for post-flight inspection & clear the way for the float collar to deploy

Thu Apr 18 19:03 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
both the capsule and heatshield will be back at KSC late tomorrow and we may also have some preliminary analysis of the flight to share, but the full analysis will not be available until at least the end of the month

Thu Apr 18 19:04 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
Ascension team will begin reviewing yesterday's flight over this next week or two and determine what went right/wrong & good/bad - but you can draw your own conclusions (literally - graphs!) with the flight telemetry available here: docs.google.com/spreadsheets/d…

Fri Apr 19 09:37 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
here's a view we'll never get tired of - Kerbin from the edge of space. Taken shortly before MECO. The outside pressure is near vacuum and the engine plume has expanded into a gaseous cloud
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Fri Apr 19 13:22 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
ironically the heavier payload of yesterday's flight meant the rocket flew a more vertical trajectory than the last when it was modified to be able to fly more horizontal. The two paths diverge downrange thanks to the LES malfunction, which sent the rocket off radially
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Fri Apr 19 14:40 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
even though this ascent trajectory wasn't as demanding as the last, the real goal was to follow the programmed path as closely as possible to better analyze the accuracy of the Launch Vehicle Designer and in this the rocket was successful

Fri Apr 19 14:41 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
we're not digging any deeper into this week's flight, but if you fear you may have missed anything these past few days you'll find it in our weekly Ops Summary: kerbalspace.agency/?p=8957 a well-deserved rest to all our rocketry team members this weekend!
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Fri Apr 19 18:00 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
#ICYMI we had our latest rocket launch this week. Here is the Ascension Mk1 Block I lifter carrying the Mk1 capsule for a test ride into space (unkerbed) clearing the tower moments after liftoff. For more on the mission see our Ops Tracker: ops.kerbalspace.agency/?vessel=ascens…
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Sat Apr 20 10:46 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
re-entry data from last week's flight shows Greggery experienced a crushing 17G of peak force - survivable but not without some possible nasty side-effects. We're aiming for 10-12G and may need to shoot for a lower altitude next time or just go further for a flatter trajectory

Tue Apr 23 10:36 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
the heat shield dropped from the Mk1 capsule shows only 2.5% of its surface was ablated away during re-entry. This is good news because a thinner heat shield can save as much as 180kg - atop an Ascension Mk2 upper stage that's an extra 65m/s of Ξ”v

Wed Apr 24 17:42 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
a relatively mundane week here at the KSC but as always exciting things are on the horizon. Catch anything you may have missed or find more details on what transpired in our Ops Summary: kerbalspace.agency/?p=8969
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Fri Apr 26 17:16 EDT 2019

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Kerbal Space Agency @KSA_MissionCtrl
we've been dropping bits of important analysis results from this month's Ascension Mk1 launch here and there but for all the details on what went on during the mission you can now check out the full report: kerbalspace.agency/?p=8976

Tue Apr 30 13:41 EDT 2019

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