This blog follows the progress of the LRO mission through Integration and Testing at NASA's Goddard Space Flight Center and launch site processing at KSC\Astrotech. Its purpose is to enable communication to the entire LRO Team about the status of ongoing activities.

LRO was launched June 18th, 2009 at 5:32pm EDT from KSC. This BLOG will follow the progress of the mission as LRO travels to the Moon and establishes orbit around it.

This BLOG will be periodically updated during LRO's early mission but as the nominal mission unfolds the official NASA LRO website and the LRO Science Instrument's own websites will evolve into a more interesting sources of LRO science results as postings appear there first and LRO engineering and operations (source of this site) will become increasingly routine.




Thursday, December 18, 2008

Chamber Door is Open!

Chamber door was opened at 17:40 tonight. Dan Simpson and Sam Floyd currently extracting the Cf-252 source from the chamber. Then Dan will take local area wipes to verify that no radiation has leaked and then we can all start our prep work to escape from the SES.
The man who comes back through the Door in the Wall will never be quite the same as the man who went out. He will be wiser but less sure, happier but less self-satisfied, humbler in acknowledging his ignorance yet better equipped to understand...Aldous Huxley, "The Doors of Perception"

Resuming the 8am tag up meetings.

We will restart this on Friday 12/19.

Power Down Completed at 6:10am

We have powered down the spacecraft and are backfilling the chamber. Could be able to open the door around 5pm.

Hurray!!!!!

The plan now is to get the spacecraft into the cleanroom before Christmas. Already got my Xmas present :-)

Wednesday, December 17, 2008

A Star a star

It bring us goodness light.

St OGSE testing is complete 11:15pm. Jim has gotten all his data. He looks happy or it's just that he's going home.

We are starting to configure for the PDE testing.
Turning on the LROC, LAMP, LOLA, DIVINER.

We are going to perform 2LOI looking for Glitches.

We're Going down

TC-204 Orbital Trending complete 9:29pm

We are configuring Spacecraft for ST OGSE Testing
All instruments off
S-band off (going hard line)
SAS and HGA gimbals off

We will be turning the Spacecraft (1553) over to ST OGSE for test and we
will be transitioning slowly at first while testing is ongoing.

After ST OGSE testing is complete we speed up the transitioning and begin the PDE testing.

Going with the trend of the day

TC-211 LROC Collimator Test complete at 7:45pm
We turned LROC off for 15mins to help speed up it cooling.

TC-204 Orbital Trending has started at 7:45pm and will be completed around 9:00pm

ACS Star tracker and PDE investigation should begin somewhere around that time.

The last Balance

At 4:20pm Dec 17 a date that will live in infamy, thermal has called the last and final Balance. At the moment are trying to drive LROC (NAC) to 29 degrees and start TC-211 LROC Collimator Test. That test only takes 10mins but we are still not sure when we will be able to start it. We will do trending after that, trending run for 1.5 hours. Then we will start transitioning to ambient. During transitioning we will be doing some Star tracker and PDE investigation. I'll have a better idea on when we start trending in about an hour. Stay tune

Testing Software Controlled Hraters

This morning, following the DIVINER and LOLA Tests, we have been verifying the instrument software controlled heaters. With the execption of the LEND Heaters, we have verified all of the instrument software controlled heaters (Gosh! That was exciting!).
We are still awaiting the completion of the Hot Soak later today.

Waitng for Hot Soak

We have completed the DIVINER Functional and a LOLA CPT. We are currently running heater control tests while we wait for Hot Soak to finish (sometime late this afternoon). There isa plan to run a star tracker test during this shift. At the end of Hot Soak, we will run the orbiter Trending.

Hot Soak Update for 12/17/2008 8:15 AM

Currently running DIVINER functional, TC-206, which will be followed by Orbiter Trending, TC-204, while in the background, the thermal team works toward Hot Soak completion and some additional balance data on the Solar Arrray gimbals. The thermal activities will most likely take most of the shift.

TC-202; Payload Integrated Functional was completed at 5:15am
TC-203 LROC Collimator Test completed at 5:30am
TC-205 ROC Imaging completed at 6:02am

Tuesday, December 16, 2008

Moving on, or just around again?

TC-200, Mission Rehearsal #1, completed at 7:00 pm tonight when the MOC turned control of the Orbiter back over to I&T. (It took a couple extra hours to dump all the spacecraft data to the ground.)

At 7:10 pm, we began the inserted testing to perform the MCC and LOI burns. These were completed at 9:40 pm.

TC-201, the Simulation Cleanup, was executed from 9:41 – 10:12 pm.

TC-202, another Payload Integrated Functional, promptly started at 10:37 pm (and should run till about 5:40 am on 12/17).

As Fate Would Have It…

The Mission Rehearsal has run into a snag. At ~4:10 pm Action Point 30, Observing Sun Position Error, tripped causing the orbiter to go into sun safe. This has brought the simulation to it’s knees and will thus be terminating early.

At current time, we are performing some cleanup activities to close out the simulation steps (TC-198 and TC-200). We will then move into the inserted test for the PDE MCC & LOI burns.


TC-202, the Payload Integrated Functional, might commence as early as 8:00 pm tonight due to our unexpected schedule modification.

The mission Rehearsal #1 continues to go smoothly

As of 12/16/2008, 1:40 PM the Mission Rehearsal #1 continues, we are in pass #20. There are 4 passes remaining. The time remaining is 8.5 hours. That puts completion at around 9:30 PM tonight, 12/16/2008.

Following Mission Rehearsal, will be the Rehearsal cleanup, TC-201,(1 hour), followed by the Payload Functional Test, TC-202 (7 hours), and the LROC Collimator Test, TC-203 (0.5 hours)

MR1 Update 12/16/08 @ 7:30 am ET

MR1 is ongoing (TC-198).

We completed Pass 16 from the Station Schedule Table.
Pass 16 Completion 12/16/08 @ ~7:00 am ET. -> Final Pass (24) Completion prediction 12/16/08 @ ~9:00 pm ET

Other Notable Updates:
1) We completed the 4hr balance for the SAS Gimbal for 4.3A per segment, and subsequently set the SAS current to 3.8A per segment on 12/16/08 @ ~2:30 a.m ET

2) Started Orbit Simulation on 12/16/08 @ ~2:40 a.m. ET

3) It is anticipated by Thermal that we will declare the 24 hr Hot Soak #4 mid afternoon.

Seems as if we have we’ve found some momentum. See attached for cartoon metaphor.


Josh

Monday, December 15, 2008

Back to Thermal Updates in a World of Simulation

The Mission Rehearsal is still going.

The SAS achieved it’s thermal balance point ~10:30 pm and requires a four hour soak. Once it’s soak is completed we will back down on the SAS current and continue the orbiter transition to Hot Soak #4.

And the Mission Rehearsal goes on…

Looking Ahead Through the Blades of Grass

Mission Rehearsal #1 is a tricky one. It transcends two, yes two, steps in the schedule.

Step 198 is the start which runs for 24 hours. Then step 199 is only a time to declare Hot Soak #4 without utilizing any time at all since it is an instantaneous event. However, we then have step 200 which is nothing more than a 12 hour continuation of Mission Rehearsal #1.

Thus Mission Rehearsal #1 will actually claim 36 hours of our lives and not just 24. The simulation will complete ~8:40 pm tomorrow night (Tuesday 12/16).

Following the rehearsal there are the cleanup activities (TC-201) and a desire to retest a simulated MCC (this will not require a configuration change of the spacecraft as the desire is to only see the burn). These activities should take about 2 hours.

Next on the schedule will be TC-202, the Payload Integrated Functional, which should begin around 11:00 pm on 12/16 and run for it’s usual 7 hours.

Mission Rehearsal #1, TC-198, is underway

After some configuration problems and a couple of false starts, we managed to actually get into Mission Rehearsal #1, TC-198, around 8:45 AM this morning (12/15/2008). As of 10:40 AM, the rehearsal is going smoothly. The rehearsal will run for the next 24 hours.

This should be a great time for my learned colleagues, on the LRO team to post their innermost thoughts the meaning of life and why guitars have 6 or 12 strings, while a banjo has only 5.

"Hey Rocky! Watch me pull a rabbit out of my hat!"
"Oh Bullwinkle, that trick never works!"
"I've just gotta get a new hat!"
We are continuing to make progress in the pre-simulation preparation for the Mission Rehearsal. These activities are wrapped up into TC-198, although we haven't officially started the MR. We are working our way through some GDS time syncing and epoch state vector issues.

Once we kick off the MR, it is expected to take 24 hrs.

Below is real footage from the pre-simulation process streamed to the MOC :-)

Josh

Notable changes to the MR1 SER:

Step 37 of Pre-Simulation Preparation: delete the text that is there, and replace with, "I&T TC should start gssas_fixcurrall(4.3) to set the SAS current to 4.3 A per segment."
After step 39, insert "After balance of the SAS gimbal is achieved, as declared by the thermal engineer, the I&T TC should start gssas_fixcurrall(3.8) to set the SAS current to 3.8 A per segment, then start the SAS Background Cycling Procedure with time coordinated with the MOC
a. PAGE GS_SAS_ORBIT_SIM
b. Enter 48 minutes for eclipse duration"

The other balance that needs to be achieved during this transition is the LOLA hot-operational balance. For this balance point, we need the LOLA laser firing. We plan to submit an Operations Activity Request to the MOC during the simulation to achieve this configuration change and exercise the MOT a bit. We do not want to start out immediately with the laser firing, in order to save shots.

Call Dave's cell if you have any questions.

Sunday, December 14, 2008

We are still running the Mini-RF Cal Activity which was inserted into the schedule.
10:00 pm ET Start Time -> 11:36 pm ET Completion Time

Started Transition to Hot Soak #4 (TC-196)
11:00 pm ET Start Time

Once the Mini-RF Cal activity is complete, we will configure for Mission Rehearsal (TC-197).
11:45 pm ET Start Time -> 12:25 am ET Completion Time

Mission Rehearsal will commence after that (TC-198) and will run for 24 hrs per the SER for MR1 Rev D.
~12:45 am ET Start Time

Josh

Upcoming Plan

The near term plan for operations is to set the SAS rack to 4.33 A and transition the chamber to hot thermal balance. In the morning we will also enable the LOLA laser for its balance. We will stay in this configuration until LOLA and SAS balance (12 hours). We will then transition the power down to 3.8 A and start orbit cycling SAS for a power balance. Then we will warm the ITP, PROP, CRaTER, and LEND to soak and leave the +Y IM panels and +Z panels at balance. This will take 8-10 hours. After the rehearsal is complete, we will do the payload functional once CRaTER, LEND, and ITP reach soak.

Note Trick is allowing me to utter decimate the current plan in order to achieve 2 more balance points.

The thermal czar [note the lack of capitalization implies there are more of us]

Trend off

TC-194 Orbital Trending is complete at 9:40pm
I took a little longer due to Instrument Temperatures were low.
so we waited for things to warm up before we turned on LROC.

TC-195 Cold soak #4 is complete

Tc-195a Mini-RF Calibration Activity which was requested last week has been inserted

and will be preformed before we transition to Hot.

This test will take about 2 hours and will be starting at 10:00pm



This could be my last blog. I know you will all miss me.


Working at the T_VAC Blues

Well, I just got done doing a double shift
I’m Doin ninety days of Thermal vac support
Got to find me an executive position
But no matter how smooth I talked
They wouldn’t listen to the fact that I was a genius
The man say, we got all that we can use.
Now I got them steadily depressin, low down mind messin
Working at the T-VAC blues

Well, I should be in my offiice listening to tunes in my reclining chair
Talking some trash to my cleaning lady
Sayin, Hey now Millie clean up over there
Instead, watching these monitors all nite long
And trying just to take a quick snooze
With them steadily depressin, low down mind messin
Workin at the T-VAC blues

You know a man of my ability
He should be hanging out late at the bar
But till I get myself straight I guess Ill just have to wait
To reach balance from Charles the LRO Czar

Well, all I can do is a shake my head
You might not believe that its true
cause workin off his sins for Joanne Baker
Is an undiscovered Howard Hhughes
So Tooley, dont expect to see me
With no double martini on the cover of Aerospace news
Cause I got them steadily depressin, low down mind messin
Workin at the T-VAC blues
So Peddie, dont expect to see me
With no double martini on the cover of Aerospace news
Cause I got them steadily depressin, low down mind messin
Workin at the T-VAC blues
Yeah I got them steadily depressin, low down mind messin
Workin at the T-VAC blues

Alright I needed more time

We're very trendy

TC-193 Orbital Functional Completed at 6:45pm

TC-194 Orbiter Trending started immediately a should take about an hour.

MINI RF wanted everyone to know that they are here. Very excited!

When I'm not in my right mind, my left mind gets pretty crowded.(I'm running out)

Status 12/14 @ 3:40pm

We are still working our way through the Orbiter Functional. Right now we are running the S-band Comm Check. Projected completion of the test is about 6pm.

That means that MRF Calibration should start around 7:30pm.

Configuration for MR #1 starts around 9:30pm

Start of MR #1 should happen around 12:30am

TC-193: Finished Nominal Orbit Sim @11:00am

Currently, we are running lro_nom_04, the nominal orbiter sim cleanup. We are about to start the subsystem level checkout.

Here's how the evening is starting to shape up.

Looks like we will finish the Orbiter Functional around 5pm.
Run trending. 5p-6:15p
Start transition to hot soak 6:30p
Run MRF calibration 6:30p-8:30p
Configure for MR#1 8:30p -11:30p
Start MR #1 ~12 midnight (12/15) - 12 noon(12/16)

Get some rest.

Functional Status?

Despite some minor issues due to an ITOS crash, the functional is progressing smoothly. We have completed the LOI sections and are now in Comm 4, Commission of the Ka-Band Telemetry.

The Orbiter Functional has begun.

Terminated the LROC B/G Imaging at 11:52 pm which was started in TC-189 at 9:30 pm.

Completed TC-190, LROC Collimator Test, from 11:53 pm – 12:06 am.
Completed TC-191, Dump SSR Recorder, from 12:07 am – 1:15 am.

Started TC-193, Orbiter Functional, at 1:17 am.

The functional is estimated to take about 18 hours which would place its completion time around 7 pm tonight. Following this is the Orbiter Trending, TC-193, which takes approximately 1 hour. This being said, if all goes well, we should be able to start transitioning HOT around 8 pm or so tonight.