Re: LCROSS outbound tracking ephemeris Earth to Moon

Date: Thu Jun 18 2009 - 21:21:18 UTC

  • Next message: Canopus56: "LCROSS outbound tracking ephemeris Earth to Moon"

    As Kurt is already aware, I was the one how made the suggestion to NASA's  
    Paul Tompkins about sighting the venting of surplus gas from the LCROSS  
    Centaur.  Unfortunately, it appears from his message that North Americans  will 
    not be able to make a sighting of the illuminated cloud.   :(
    A moot point locally here in the NYC area as we are being drenched by heavy 
    Good luck to prospective viewers in Australia and Southeast Asia!
    -- joe rao 
    In  a message dated 6/18/2009 1:48:03 P.M. Eastern Daylight Time, writes:
    LCROSS Flight Director Paul D.  Tompkins 
    Posted on Jun 18, 2009 02:21:32 AM Paul.D Tompkins  
    3. Finally, one of my  readers suggested a really great idea.  He wanted to 
    know if our Centaur  would be venting gas as part of its sequence.  The 
    reason he asked is that  under the right lighting conditions, the sunlight high 
    above Earth can actually  illuminate the vented gases, making them visible 
    from the ground.  He said  he was able to observe this effect as a kid right 
    after the Apollo 14  launch.  Cool! 
    So, I've tracked this down, and our Navigation team has  provided some data 
    for those of you with enough experience might be able to use  to predict 
    LCROSS's early-mission trajectory.  Here is the information and  some figures 
    (attached).  Best for our friends in the Southeast...and by  that I mean 
    Australia, Indonesia, Singapore and Thailand...enjoy...and thank you  for such 
    a great idea!  From our extended Navigation team: 
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