To: sot_shift
Subject: Shift report
Date: Thu, 22 Jul 1999 22:58:30 -0400
From: Tom Aldcroft <aldcroft@head-cfa.harvard.edu>

** Day 1999:203 **  Pre-launch B-shift

No significant technical problems arose during the pre-launch B shift.

Two short brown-outs (< 10 secs each) occurred at the OCC, resulting
in loss of room lights.  This was apparently due to problems with
Boston-Edision.

The launch window has been extended by 70 minutes, for a total of 116
minutes.  The start of the window is still 12:24 am.  The extension
of the window results in:
 - Potential loss of early emergency deployment opportunties (revs 3, 4, 5)
 - Earth eclipses of up to 140 minutes (as opposed to 120 minutes nominally)
   if launch is late in the window
Detailed reports are given in flight notes 14 and 17.

There is concern about a possible near miss (25km) with old Delta debris 
in the transfer orbit phase.  Uncertainties are very high, however, and 
no departure from the nominal plan is recommended.

-Tom