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6 June 2003

ISS On-Orbit Status 5 Jun 2003

Part 3 of 3

Flight Attitude:

XPOP (x-axis perpendicular to orbit plane = "sun-fixed" [yaw: 0.5
deg, pitch: -6.8 deg., roll: 0 deg]), with CMG TA (thruster assist).
Solar Beta angle:  18.2 deg (magnitude decreasing).

Communications & Tracking Systems:

FGB MDM-1 is powered Off; FGB MDM-2 is operational.
All other Russian communications & tracking systems are nominal.
S-band is operating nominally (on string 2).
Ku-band is operating nominally.
Audio subsystem is operating nominally [IAC-1 (internal audio
controller #1) being analyzed after self-test error.  IAC-2 is
prime.]
Video subsystem operating nominally.
HCOR (high-rate communications outage recorder) is operating
nominally.

Robotics:

SSRMS/Canadarm2 based at MBS PDGF #1 with Keep Alive (KA) power on
both strings.
MBS: KA power on both strings.
MT: latched at WS4, with KA power.
POA: KA power on both strings.
RWS (robotics workstations): Lab RWS is Off; Cupola RWS is Off.

ISS Orbit  (as of this morning, 3:48am EDT [= epoch]):

Mean altitude -- 389.8 km
Apogee -- 394.1 km
Perigee -- 385.5 km
Period -- 92.35 min.
Inclination (to Equator) --  51.63 deg
Eccentricity -- 0.000637
Orbits per 24-hr. day -- 15.59
Solar Beta Angle -- 18.2 deg (magnitude decreasing)
Mean altitude loss in last 24 hours -- 85 m
Revolutions since FGB/Zarya launch (Nov. '98)  -- 25915
For more on ISS orbit and worldwide naked-eye visibility dates/times,
see http://www.hq.nasa.gov/osf/station/viewing/issvis.html

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