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.




Sunday, November 2, 2008

TB-36: Waiting for Cold Survival Balance

One brave thermal person (name withheld to protect the innocent), ventured to guess that we would reach survival temps sometime tomorrow morning.

“All human wisdom is summed up in two words - wait and hope” Alexandre Dumas Père

Are we there yet (revised)?

TB-35 is here to stay

We are still waiting for a few more heaters to trip. So we may be here for a while.

TB-35 Still going and going and going

You might find this hard to believe but The Cold Survival Transitioning will be taking longer than the four hours.We are waiting for the LEND heater to trip. This may occur by the 0800. lol After that, it will have to trip several more time to complete the duty cycle plot. Then we can move to TB-36. ♦

“A yawn may not be polite, but at least it is an honest opinion”

Instrument survival heaters kicking on - so far so good

The Big Chill continues.  

Instrument survival heaters have already kicked on for the following:

CRaTER, DLRE, LAMP, LOLA

...looks like a few hours to go for LROC and several more beyond that for LEND.  So far the behavior is tracking what we saw in the eclipse simulation a couple of nights ago.

So far so good. 

Still waiting at TB-35

Into our second hours of the four hour wait of TB-35. If four hours will be enough.

All Instruments powered off for survival balance

As of 1:02 EDT this morning, all Instruments have been powered off and safely tucked into bed for the cold dark night known as the survival cold balance (shiver, shiver). 

Payload will trust that the spacecraft will keep us warm (enough) until time to wake up again for Cold Start.

To Instrument teams - remember that payload remains off for the Propulsion Cold Fire Test which follows survival balance, so the next Instrument power on is at TB-40, Orbiter Cold Start. Please check back here or on the hotline for updates on the Orbiter Cold Start time.

TB-34 Complete. TB-35 Started

 TB-34 LOLA Laser was turned off complete. TB-35 Cold Survival Transition has begin 2445.