Mission Control Center
STS-66 Status Report #6

Sunday, November 6,  9 a.m.  CST

With the Atmospheric Laboratory for Applications and Science operating
in Atlantis' payload bay, the six astronauts are continuing
round-the-clock studies of the Earth's atmosphere and ozone
layer. The Blue Team -- Pilot Curt Brown and Mission Specialists
Jean-Francois Clervoy and Scott Parazynski -- began its fourth day
on orbit about 8 p.m. CST Saturday. Throughout their shift, the
three astronauts have worked with the instruments comprising the
ATLAS-3 payload.  

  Atlantis is station-keeping in front of the CRISTA-SPAS science
satellite at a distance of about 48 nautical miles.  The Cryogenic
Infrared Spectrometers and Telescopes for the Atmosphere satellite
was deployed Friday and will be retrieved Saturday following eight 
days of atmospheric data gathering.

  Clervoy devoted most of his work day with the Heat Pipe Performance
experiment  designed to evaluate fluid transfer through various
types of pipes for possible use on future spacecraft.

 Today the Red Team -- Mission Commander Don McMonagle, Mission
Specialist Joe Tanner and Ochoa -- will support a number of
secondary experiments housed in Atlantis' middeck.  McMonagle will
work with the Heat Pipe Performance experiment.  Each of the Red
Team astronauts will exercise on the Shuttle's bicycle ergometer
during their workday.

  All systems aboard Atlantis are in excellent shape as the orbiter
circles the Earth every 90 minuits at an altitude of approximately
164 by 160 nautical miles.