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02 July 2003

ISS On-Orbit Status 1 Jul 2003

Part 2 of 3

Today's CEO targets, no longer limited in the current LVLH attitude
and including the targets of the Lewis & Clark 200-year memorial
locations, were Tel Aviv, Israel (nadir view), Amman, Jordan (nadir
view), Dakar, Senegal (nadir and a touch left), Mouth of Marias
River (LEWIS & CLARK SITE: The Marias is a large, meandering river
that joins the Missouri from the northwest about 80 miles northeast
of Great Falls:  looking a touch right of track for this river valley
that includes Lake Elwell Reservoir.  On the return trip of the
expedition in the summer of 1806, Lewis and nine men temporarily
separated from the main party to explore this river and valley),
Pompey's Pillar, MT (LEWIS & CLARK SITE:  Looking right of track
towards the Yellowstone River where it flows east northeastward from
the city of Billings.  This 200 foot-high rock formation is on the
south bank of the river near the point where Interstate Highway 94
converges to within half a mile of the river and then runs parallel
with it.  Captain Clark's dated signature is engraved in the rock),
Missouri R. sites (LEWIS & CLARK SITES: Track followed the Missouri
on the Nebraska-South Dakota border at nadir. The crew was advised to
do a continuous detailed mapping swath to capture a series of sites
in this sector upstream of Sioux City), and Gila Wilderness fires,
NM (Dynamic event:  Satellites show heat signatures in several places
in New Mexico and Arizona.  Looking left and right of track for smoke
plumes.  The 400 and 800-mm lenses are capable of capturing flames at
the source of the smoke plumes).

CEO images can be viewed at the websites

http://eol.jsc.nasa.gov
http://earthobservatory.nasa.gov

See also the website "Space Station Challenge" at
http://voyager.cet.edu/iss/

U.S. and Russian Segment Status (as of 1:48pm EST).

Environmental Control and Life Support (ECLSS) and Thermal Control
(TCS):

Elektron O2 generator is powered On (16 amp mode).  Vozdukh CO2
scrubber is On (in Manual Mode 3/5).  U.S. CDRA CO2 scrubber is Off.
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 (unit is
down).  RS air conditioner SKV-1 is On; SKV-2 is Off.


SM Working Compartment:  Pressure (mmHg) -- 742; temperature (deg C)
-- 26.7; ppO2 (mmHg) -- data invalid; ppCO2 (mmHg) -- data invalid.
SM Transfer Compartment:  Pressure (mmHg) -- 751; temperature (deg C)
-- 20.7.
FGB Cabin:  Pressure (mmHg) -- 752; temperature (deg C) -- 22.7.
Node:  Pressure (mmHg) -- 743.89; temperature (deg C) -- 22.5
(shell); ppO2 (mmHg) -- 171.2; ppCO2 (mmHg) -- 4.6.
U.S. Lab:  Pressure (mmHg) -- 745.62; temperature (deg C) -- 23.2;
ppO2 (mmHg) -- n/a; ppCO2 (mmHg) -- n/a.
Joint Airlock (Equip. Lock):  Pressure (mmHg) -- 745.73; temperature
(deg C) -- 26.1; shell heater temp (deg C) -- 22.1, ppO2 (mmHg) --
n/a; ppCO2 (mmHg) -- n/a.
PMA-1:  Shell heater temp (deg C) -- 22.7.
PMA-2:  Shell heater temp (deg C) -- 21.6.

(n/a = data not available)

Propulsion System (PS):

Total propellant load available: 3803 kg (8384 lb) as of 6/26
[SM(774) + FGB(2447) + Progress M(182) +Progress M-1(400)].
(Capability: SM -- 860 kg; FGB -- 6120 kg).

Electrical Power Systems (EPS):

Both P6 channels fully operational.  BGA (beta gimbal assembly) 2B
and 4B both in AutoTrack.
SM batteries:  Battery #4 is disconnected (failed 6/16); battery #6
is in "Cycle" mode; all other batteries (6) are in "Partial
Charge"
mode. Batteries #1, #2 and #3 showing degraded capacity.
FGB batteries:  Battery #3 is offline; all other batteries (5) are in
"Partial Charge" mode.
Plasma Contactor Unit PCU-1 in Standby mode; PCU-2 in Standby mode.

Command & Data Handling Systems:

C&C-1 MDM is prime, C&C-2 is back-up, and C&C-3 is in standby.
GNC-1 MDM is prime; GNC-2 is Backup.
INT-1 is operating; INT-2 is Off.
EXT-2 is On (primary), EXT-1 is Off (both now upgraded to R3).
LA-1, LA-2 and LA-3 MDMs are all operating.
PL-2 MDM is Off; PL-1 MDM is Operational.
APS-1 (automated payload switch #1) and APS-2 are both On.
SM Terminal Computer (TVM): 3 redundant lanes (of 3) operational.
SM Central Computer (TsVM): 3 redundant lanes (of 3) operational.

Attitude Control Systems:

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

 - Continued -

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