Launch Coverage

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Virtual Launch Control Center - MRO
Archived coverage of the scrubbed launch attempt of MRO on August 11, 2005.

All times are in EDT unless otherwise stated.

NOTE: Refresh/reload your browser every few minutes to view launch control center updates.

The Virtual Launch Control Center was activated at 5:30 a.m.

The Virtual Launch Control Center was deactivated at
8:55 a.m.

8:50 a.m. – NASA Launch Manager Chuck Dovale has announced a 24-hour scrub. We are officially scrubbed for today and detanking will begin shortly. Tomorrow's 2-hour launch window opens at 7:43 a.m.

8:46 a.m. – At T-4 minutes we are in the programmed 10-minute hold.

8:44 a.m. – We are counting and the new launch time is 9:35 a.m. and we are on standby as to whether or not we will be able to continue with this count today.

8:40 a.m. – The weather officer reports that showers at the coast should not be a problem for the launch. Winds pose no threat for the operation either.

8:38 a.m. – T- 12 minutes and counting.

Did you know?
The fueling of the Atlas V is an automated process. The launch team controls the process however an automated computer program actually performs the tanking operations.

8:31 a.m. – At T-19 minutes and counting, we have approximately 5% of the liquid hydrogen on board. We have stopped tanking while the anomaly team evaluates the process for proceeding.

8:25 a.m. – At T-25 minutes and counting, we are standing by to begin the loading of the Centaur's liquid hydrogen. There is some discussion as to whether we will tank the first 5% manually and then let the computer take over. At this point we are continuing with our countdown toward a 9 a.m. launch.

8:15 a.m. – At T-35 minutes and counting, we are topping off the Atlas V liquid oxygen tank.

Did you know?
The Atlas V family uses one single-stage Atlas main engine which is the RD-180.

8:05 a.m. – We are now at T-45 minutes and counting.

8:00 a.m. – At T-50 minutes and counting, there is still one 10 minute hold remaining at the T-4 minute mark. We are 1 hour from launch.

7:51 a.m. – At T- 58 minutes and counting Centaur liquid hydrogen tanking has been started.

7:50 a.m. – T-1 hour and counting.

7:48 a.m. – The Atlas rocket appears to be "breathing" on the pad as it vents vapor during the tanking process.

7:46 a.m. – We are almost 50% full on the Atlas stage and the Centaur is at flight level.

Did you know?
Part of the Atlas booster stage of the rocket becomes frosted over and turns from a bronze color to white as the vehicle is tanked with super cold liquid propellants and frost coats the outside.

7:32 a.m. – The Centaur's liquid oxygen is now at 90% full. It will be maintained at a steady level of 95% until shortly before launch when it will be topped off to 100%.

7:28 a.m. – The tanking of the Centaur's liquid hydrogen is about to begin.

7:26 a.m. – Centaur's liquid oxygen is now at 70% as we stand at T-1 hour and 23 minutes and counting.

7:22 a.m. – Centaur's liquid oxygen tanking is 50% complete. The "go" has been given to begin tanking of the Atlas V first stage with liquid oxygen.

7:20 a.m. – T-1 hour 30 minutes and counting.

7:07 a.m. – Centaur's liquid oxygen tanking began at T-1 hour 42 minutes.

6:58 a.m. – Tanking will take about an hour and a half to complete. The RP-1 fuel that is on the rocket today was loaded into the vehicle during the first countdown dress rehearsal several weeks ago. We have caught up on all activities and no other technical issues exist to prevent launching right on time at 9:00 a.m.

Did you know?
The Atlas V rockets can lift payloads up to 28,660 pounds to orbit depending on the rocket's configuration.

6:55 a.m. – We are now at T-1 hour 54 minutes and counting. The weather is clearing and the sun is starting to rise, and shine upon the Atlas V rocket with the MRO spacecraft.

6:51 a.m. – The tanking process is underway. We are at T-1 hour 58 minutes and counting.

6:50 a.m. – We are now at T-2 hours and counting.

6:46 a.m. – Cryogenic operations should begin momentarily with the approval of the Launch Director and the Launch Conductor.

6:42 a.m. – The range has approved the new T-0 time of 9 a.m. EDT.

6:36 a.m. – The hold has just been extended an additional 10 minutes, which means the new expected launch time is now 9:00 a.m.

6:32 a.m. – The NASA launch team, led by Launch Manager Chuck Dovale has been polled and has given the "go" for cryo taking to begin.

6:31 a.m. – At this time there are no technical issues in work. All delays this morning have been weather related.

6:26 a.m. – We are at T-2 hours and holding. The cryo tanking poll should happen in about 5 minutes.

Did you know?
The Atlas V rocket is made up of two stages, the Atlas Booster and the Centaur upper stage.

6:21 a.m. – We are now green on the lightning constraint.

6:18 a.m. – A new launch time of 8:50 a.m. has been approved by the range.

6:15 a.m. – The weather officer now reports that we are red for lightning rule but should be going green shortly. There are scattered low clouds, but the later part of the launch window looks very favorable.

6:07 a.m. – The area warning lights at Complex 41 are now flashing red, indicating the area should be cleared of personnel in preparation for cryogenic loading.

6:06 a.m. – The hold is extended for another 30 minutes, making today's launch time no earlier than 8:50 a.m.

6:01 a.m. – There are no weather advisories in work at this time and the Phase I lightning advisory has just been lifted.

6:00 a.m. – Centaur Liquid Hydrogen preparations have just been completed and that team is now leaving the pad. We are still at T- 2 hours and holding.

5:41 a.m. – The new expected liftoff time is 8:20 a.m.

5:26 a.m. – The hold has been extended by 30 minutes for the launch team to catch up with the preparations for launch which have been delayed by the storms in the area.

5:25 a.m. – The Pad deluge systems were configured.

5:10 a.m. – T- 3 hours and holding. This is a 30 minute hold.

4:59 a.m. – Launch Weather Officer weather briefing at T-170 min. The principle concerns for the launch window are anvil clouds. We will likely be red for anvil at the beginning of the window. The threat for winds has passed at this time and the wind warning has expired. The temperatures are going to be in the upper 70’s to low 80’s during the launch window as the thunderstorms have lowered the temperatures. Overall probability of weather constraint is 30%.

3:50 a.m. – The countdown entered the final four hours to liftoff. Checks of the vehicle’s internal batteries began.

The Atlas V rocket arrived at the Complex 41 launch pad at 11:30 p.m. on Wednesday, August 10.

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