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07 May 2003

ISS On-Orbit Status 7 May 2003

Part 1 of 2

All ISS systems continue to function nominally, except as noted
previously or below.

CDR Yuri Malenchenko completed a three-hour job of periodic
maintenance of the station's ASU toilet system, changing out the
replaceable elements, e.g., hoses, a receptacle, T-joint, elbow
fitting and filter insert, with new parts delivered on Progress.  The
old components were stowed for subsequent deorbiting on 10P/Progress.

FE/SO Edward Lu meanwhile spent three hours doing a thorough
inspection of the ELPS (emergency lighting power sources) in the U.S.
segment (USOS). [There are three ELPSs in the Node, two units in the
Lab, and one ELPS in the Airlock.]

Later, Malenchenko deactivated the IK0501 gas analyzer (GA) in the
Service Module (SM) and exchanged its BF carbon dioxide (CO2) filter
assembly with a new unit from the FGB.  GA was reactivated and the
spent BF stowed for disposal (replaced last: 4/29).  [IK0501 is an
automated system for measuring CO2, O2, and H2O in the air as well as
the flow rate of the gas being analyzed.]

Yuri also completed today's scheduled photo session 3 with the
Starmail-U01 payload kit, consisting of Earth surface photography
(land or ocean targets optional) from a DC-1 docking compartment
window with the Nikon D1 (Nikkor AF-S 17-35mm lens).  [The images
were first transferred from the D1's CompactFlash card to laptop TP1
and from there to the Russian payload laptop #3 for downlink.]

Ed Lu familiarized himself with onboard TV setup procedures and
updated them for a two-person crew.

Ed also performed the daily routine maintenance/inspection of SOZh
life support systems, prepared the daily IMS (inventory management
system) delta file to update the IMS database, and did the daily
status checkup of ISS-7 payloads.

CDR Yuri Malenchenko completed the regular inspection of the BIO-5
"Rasteniya-2/Lada-2" zero-G plant growth experiment.

The crew again had one hour set aside on their schedule for ISS
familiarization, i.e., to adjust to their new surroundings and
activities 

Malenchenko set up and installed the equipment for tomorrow's
periodic Russian MO-10 "Hematokrit" (red blood cell count) testing.

Ed and Yuri also completed their daily physical exercise program, on
TVIS (treadmill with vibration isolation and stabilization), RED
(resistive exercise device), and, for Yuri, on the Russian VELO
ergometer with load trainer.  [Overnight, MCC-H uplinked a number of
questions concerning the RED, for Ed to answer prior to his exercise
session.  The questions resulted from information called down by him
yesterday on symptoms exhibited by the RED, in an attempt to
determine their root cause.] 

During yesterday's downloading of the IWIS (internal wireless
instrumentation system) undock data files, an interruption occurred
between the SSC (station support computer) and MACE (mass access
computer equipment), leaving some RSU (remote sensing unit) #1028
files untransferred.  [The ground is investigating whether crew
support is required for an RSU data dump at a later time.]

Work is also underway by the ground to downlink the personal email
files of Expedition 6, caught in the backup resulting from the recent
File Server restoration.

MCC-H has reviewed the long and difficult sequence of procedures to
be used in case of major power bus losses on the station, which often
take out communications.  [Objective of the review was to make the
actions and procedures of recovering from critical bus loss clearer
and easier for the current two-man crew to execute successfully.]
CRV Preparedness:  Regular daily uplinks from MCC-Moscow include
Form-14 with fresh daily deorbit data for the Soyuz CRV (crew return
vehicle), should it be needed in an emergency.  As part of their work
preparations early in  the morning, crewmembers print out this form
and place it inside the Soyuz version of the ISS Emergency Book.
[Form-14  contains retroburn delta-V, length of the burn, time for
burn initiation, and retroburn angle for each of the day's deorbit
opportunities (Daily Orbits 1-15).] 

Looking ahead:  Next Progress launch (11P) is currently scheduled for
6/8; no reboost required for phasing angle adjust.  Progress-48 (12P)
is then to follow on 9/8, preceded by a phasing correction burn
sometime in June ("the later the costlier " in terms of prop
expenditure).  Soyuz 7S launch for crew rotation with Expedition 8 is
planned for 10/18, followed by 13P/Progress in early December.
Optimal ISS altitude strategy (reboosts) for 2003 and beyond is under
joint study by MCC-H and MCC-M specialists. 

Today's CEO (crew earth observations) targets, including cities
during daylight and at night (again available as targets in the
current LVLH attitude) were Danube River delta (Dynamic event.  Good
opportunity for sunglint view of this delta and associated vast
wetlands, the largest in Europe. Look left.  Looking right for Danube
plain stream patterns actively under study), Tigris-Euphrates,
Turkey (numerous very recent dams near nadir.  Shooting new fields
and associated infrastructure [roads, airfields, powerlines] of these
rapidly developing communities), Kuwait City, Kuwait (looking right
of track), Eastern Mediterranean aerosols (looking right of track for
probable smog buildup emanating from the Adriatic [originating in the
Po valley of northern Italy] and collecting around Greece, Crete and
further east), Seattle, Washington (nadir pass; ESC [electronic still
camera]), Dallas, Texas (Metroplex just right of track; ESC),
Guadalajara, Mexico  (city at night; nadir pass), Ho Chi Minh City,
Vietnam (city at night, just left of track), and Delhi, India (city
at night, nadir pass). http://eol.jsc.nasa.gov and
http://earthobservatory.nasa.gov

U.S. and Russian Segment Status (as of 1:25pm EST).

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

Elektron O2 generator is powered On (24 Amp mode).  Vozdukh CO2
scrubber is On (manual mode 3).  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.  RS air
conditioner SKV-1 is On; SKV-2 is Off. 

SM Working Compartment:  Pressure (mmHg) -- 742; temperature (deg C)
-- 27.6; ppO2 (mmHg) -- data invalid; ppCO2 (mmHg) -- data invalid.
SM Transfer Compartment:  Pressure (mmHg) -- 751; temperature (deg C)
--  20.0.
FGB Cabin:  Pressure (mmHg) -- 744; temperature (deg C) -- 21.0.
Node:  Pressure (mmHg) -- 736.89; temperature (deg C) -- 22.4
(shell); ppO2 (mmHg) -- n/a; ppCO2 (mmHg) -- n/a.
U.S. Lab:  Pressure (mmHg) -- 742.80; temperature (deg C) -- 22.3;
ppO2 (mmHg) -- 169.8; ppCO2 (mmHg) -- 3.1.
Joint Airlock (Equip. Lock):  Pressure (mmHg) -- 742.9; temperature
(deg C) -- 21.7; shell heater temp (deg C) -- 23.1, ppO2 (mmHg) --
n/a; ppCO2 (mmHg) -- n/a.
PMA-1:  Shell heater temp (deg C) -- 21.7
PMA-2:  Shell heater temp (deg C) -- 22.2

(n/a = data not available)

 - Continued -

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