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2\03 ISS On-Orbit Status 03-02-2003
Part 2 of 2

Today's targets for the CEO (crew earth observations program) were 
Rangoon, Burma (a touch left of nadir; ESC [electronic still camera]), 
Irrawaddy River Delta, Burma (ideal near-nadir sun glint opportunity 
to capture detail of waterways in the delta, where coastlines are 
shifting all the time), Nairobi, Kenya (nadir pass; ESC), Patagonian 
Glaciers (the crew's recent success in getting glacier tongues from 
the cloudy west side of the southern Andes encouraged the ground team 
to ask for more during this slightly less cloudy periodon the west 
side), and Bogotá, Colombia (a touch right of track; ESC).

CEO images can be viewed at the website http://eol.jsc.nasa.gov

U.S. and Russian Segment Status (as of 2:00pm EST).

Environmental Control and Life Support (ECLSS) and Thermal Control 
(TCS):  Elektron O2 generator is powered On (32 Amp mode). Vozdukh CO2 
scrubber is On. U.S. CDRA CO2 scrubber is On. TCCS (trace contaminant 
control subsystem) is operating. MCA (major constituents analyzer) is 
operating. BMP Harmful Impurities unit: Absorbent bed #1 in Purify 
mode, bed #2 in Purify mode. RS air conditioner SKV-1 is Off; SKV-2 is 
Off.

SM Working Compartment: Pressure (mmHg) -- 753; temperature (deg C)
 -- 25.4; ppO2 (mmHg) -- 160.5; ppCO2 (mmHg) -- 2.5 (suspect).
SM Transfer Compartment: Pressure (mmHg) -- 751; temperature (deg C)
 -- 19.8.
FGB Cabin: Pressure (mmHg) -- 752; temperature (deg C) -- 22.0.
Node: Pressure (mmHg) -- 742.62; temperature (deg C) -- 22.5 (shell);
 ppO2 (mmHg) -- n/a; ppCO2 (mmHg) -- n/a.
U.S. Lab: Pressure (mmHg) -- 745.02; temperature (deg C) -- 22.7;
 ppO2 (mmHg) -- n/a; ppCO2 (mmHg) -- n/a;
Joint Airlock (Equip. Lock): Pressure (mmHg) -- 745.02; temperature
 (deg C) -- 20.7; shell heater temp (deg C) -- 21.1, ppO2 (mmHg)
 -- 164.4; ppCO2 (mmHg) -- 6.1.
PMA-1: Shell heater temp (deg C) -- 22.6
PMA-2: Shell heater temp (deg C) -- 17.2
(n/a = data not available)

Propulsion System (PS): Total propellant load available [SM(820) + 
FGB(2898) + Progress(0)] -- 3718 kg (8197 lb) as of 1/30/03. 
(Capability: SM -- 860 kg; FGB -- 6120 kg).

Electrical Power Systems (EPS):
Both P6 channels fully operational. Beta Gimbal Assembly (BGA) 2B
 and BGA 4B both in "blind" dual-angle mode (directed position).
SM batteries: Battery #7 is off line (failed); all other batteries
 (7)  are in "Partial Charge" mode.
FGB batteries: Battery #1 is off line; battery #2 is in "Cycle" mode;
 all other batteries (4) are in "Partial Charge" mode.
Plasma Contactor Unit PCU-1 and PCU-2 both in Standby mode.

Command & Data Handling Systems:
C&C-2 MDM is prime, C&C-3 is back-up, and C&C-1 is in standby.
GNC-1 MDM is prime; GNC-2 is Backup (new patches loaded on both).
EXT-1 is On (primary), EXT-2 is off.
LA-1, LA-2 and LA-3 MDMs are all operating.
PL-2 MDM is On (primary); PL-1 MDM is off (diagnostic
APS-1 (automated payload switch #1) and APS-2 are both On.
SM Terminal Computer (TVM): 2 redundant lanes (of 3) operational.
 Lane 1 is out of the set (as of 11/14/02).
SM Central Computer (TsVM): 3 redundant lanes (of 3) operational.

Attitude Source:
3 CMGs on-line (CMG-1 failed).
State vector -- U.S. SIGI-1 (GPS)
Attitude -- U.S. SIGI-1 (GPS)
Angular rates -- U.S. RGA-1

Flight Attitude:
LVLH TEA (local vertical/local horizontal = "earth-fixed": z-axis in 
local vertical, x-axis in velocity vector [yaw: -10 deg, pitch: -9.1 
deg, roll: 0 deg]), CMG/TA (thruster assist) momentum management).
Solar Beta Angle: 1.7 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.
Ku-band is operating nominally.
Audio subsystem operating nominally.
Video subsystem operating nominally, but VTR1 is off.
HCOR (high-rate communications outage recorder) is operating
 nominally.

Robotics:
SSRMS/Canadarm2 based at MBS PDGF2 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, 6:23am EST [= epoch]):
Mean altitude -- 387.0 km
Apogee -- 390.8 km
Perigee -- 383.1 km
Period -- 92.30 min.
Inclination (to Equator) -- 51.64 deg
Eccentricity -- 0.0005689
Orbits per 24-hr. day -- 15.60
Mean altitude loss in last 24 hours -- 200 m
Solar Beta Angle -- 1.7 deg (magnitude decreasing)
Revolutions since FGB/Zarya launch (Nov. '98) -- 24014

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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