Re: A Question about visiblity of STS-130 on Orbit #1

From: djlaszlo@aol.com
Date: Mon Feb 01 2010 - 16:11:07 UTC

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    Hi All,
    
    I would keep an eye on the NASA Skywatch applet at:
    
    http://www.spaceflight.nasa.gov/realdata/sightings/SSapplications/Post/JavaSSOP/JavaSSOP.html
    
    I would expect STS-130 to get added to the satellites as launch 
    approaches.  It will give the altitude and azimuth.  You can edit the 
    variables to show passes lower than 10 degrees elevation.
    
    Cheers,
    
    Dan Laszlo
    www.ncastro.org
    Fort Collins CO USA
    
    
    -----Original Message-----
    From: Skywayinc@aol.com
    To: SeeSat-L@satobs.org
    Sent: Sun, Jan 31, 2010 9:27 pm
    Subject: A Question about visiblity of STS-130 on Orbit #1
    
    
    A friend of mine who lives in the Washington,  D.C. area sent me an 
    E-Mail
    about the prospective visibility of Endeavour in his  area after the
    scheduled 4:38 a.m. EST launch next Sunday.  Among his  questions was 
    this:
    
    "But I'm still not sure about Feb. 7 and 8 (Endeavour  docks 130AM or 
    so
    Feb. 9th).  I doubt they are much better, but we're  running out of 
    chances to
    see the orbiters undocked.  I'm hoping someone  who can chart the 
    alt./az.
    for the shuttle during ascent might have some  thoughts on whether it 
    might
    be visible after the first orbit, too.  Ninety  minutes after launch 
    (4:39
    AM) on Feb. 7, Endeavour should be coming around  again shortly after 
    6:09
    AM, presumably to the west of us.  That's still  twilight for the most 
    of the
    East Coast -- any thoughts on whether we might get  to see it then?"
    
    Here was my response:
    
    Hi Jim --
    
    I've been thinking about that as well . . . I think  that Endeavour 
    will
    have an orbital altitude of about 140 statute miles on its  first 
    flyover and
    it might even be a minute or two earlier than 6:09 (at that  initial 
    low
    Earth orbital insertion, its orbital period might be closer to 89 or  
    even 88
    minutes).  The angle of illumination, however, should be very  
    favorable;
    remember, the Sun will be coming up in the east-southeast and  
    Endeavour will
    be reaching its highest altitude (for us) over in the  west-northwest . 
    . .
    so it should be broadside to the rising Sun and almost  fully 
    illuminated.
    Considering the fact that this all happens about an  hour before 
    sunrise
    means that it should be readily visible.  Only concern  I think, is the
    altitude; at 140-miles, it's probably going to be 10-degrees or  less 
    at its
    highest
    above our local horizons (I live just north of NYC).   If that be the 
    case,
    neither NASA Realtime data or Heavens Above will provide a  listing.
    
    Nonetheless, all this could be a moot  point, since latest computer
    forecasts are suggesting a major storm along the  Middle Atlantic coast 
    next
    Sunday.
    -- joe
    
    
    Anyone on SeeSat-L have  an opinion on this?
    -- joe rao
    
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    -----Original Message-----
    From: Skywayinc@aol.com
    To: SeeSat-L@satobs.org
    Sent: Sun, Jan 31, 2010 9:27 pm
    Subject: A Question about visiblity of STS-130 on Orbit #1
    
    
    A friend of mine who lives in the Washington,  D.C. area sent me an 
    E-Mail
    about the prospective visibility of Endeavour in his  area after the
    scheduled 4:38 a.m. EST launch next Sunday.  Among his  questions was 
    this:
    
    "But I'm still not sure about Feb. 7 and 8 (Endeavour  docks 130AM or 
    so
    Feb. 9th).  I doubt they are much better, but we're  running out of 
    chances to
    see the orbiters undocked.  I'm hoping someone  who can chart the 
    alt./az.
    for the shuttle during ascent might have some  thoughts on whether it 
    might
    be visible after the first orbit, too.  Ninety  minutes after launch 
    (4:39
    AM) on Feb. 7, Endeavour should be coming around  again shortly after 
    6:09
    AM, presumably to the west of us.  That's still  twilight for the most 
    of the
    East Coast -- any thoughts on whether we might get  to see it then?"
    
    Here was my response:
    
    Hi Jim --
    
    I've been thinking about that as well . . . I think  that Endeavour 
    will
    have an orbital altitude of about 140 statute miles on its  first 
    flyover and
    it might even be a minute or two earlier than 6:09 (at that  initial 
    low
    Earth orbital insertion, its orbital period might be closer to 89 or  
    even 88
    minutes).  The angle of illumination, however, should be very  
    favorable;
    remember, the Sun will be coming up in the east-southeast and  
    Endeavour will
    be reaching its highest altitude (for us) over in the  west-northwest . 
    . .
    so it should be broadside to the rising Sun and almost  fully 
    illuminated.
    Considering the fact that this all happens about an  hour before 
    sunrise
    means that it should be readily visible.  Only concern  I think, is the
    altitude; at 140-miles, it's probably going to be 10-degrees or  less 
    at its
    highest
    above our local horizons (I live just north of NYC).   If that be the 
    case,
    neither NASA Realtime data or Heavens Above will provide a  listing.
    
    Nonetheless, all this could be a moot  point, since latest computer
    forecasts are suggesting a major storm along the  Middle Atlantic coast 
    next
    Sunday.
    -- joe
    
    
    Anyone on SeeSat-L have  an opinion on this?
    -- joe rao
    
    -------------------------------------------------------------------------
    
    Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L 
    archive:
    http://www.satobs.org/seesat/seesatindex.html
    
    -------------------------------------------------------------------------
    Subscribe/Unsubscribe info, Frequently Asked Questions, SeeSat-L archive:  
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