Chandra IPS-1 Visibility

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Chandra
1 25867U 99040B   99204.55311668 -.00000050  00000-0  10000-3 0    68
2 25867  28.5826 196.7564 8422595 269.7720   6.5176  0.97132965    26

ASSUMING I have made no mistakes, I get a perigee at around 14:13 UT on
25 Jul 99.  This occurs basically south of Rio de Janeiro while that
region is in daylight.  Thus the IPS-1 burn will not be visible.

However, other data indicates the IPS-1 burn should occur around 2:23 UT
on 25 Jul so I do not understand the discrepancy.  I assumed the burn
would occur at perigee.

Ron Lee

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