ISS On-Orbit Status 1/15/03<br /><br />All ISS systems continue to function nominally, except as noted previously<br />or below. A highly successful "golden-50th" EVA day.<br /><br />Shortly after crew wake-up (1:00am, all times EST), MCC-H began preparations<br />for the translation of the MT (mobile transporter) trolley from its current<br />WS7 (work station 7) at the end of the P1 truss to its WS4 home station on<br />the S0. The move of the rail car got underway at 2:55am and was successfully<br />completed at 3:10am with latches in place. During the activities, structural<br />dynamics data were taken with the SDMS (structural dynamics measurement<br />system) on the S0 truss.<br /><br />Meanwhile, at 2:05am, after breakfast, the crew started EVA preparations and<br />ingressed the Airlock for 10.2-psi operations. Assisted by FE-1 Nikolai<br />Budarin, CDR Ken Bowersox and FE-2/SO Don Pettit donned EMUs and purged the<br />suits, after which Budarin repressurized the A/L to 14.7 psi and opened the<br />A/L-Node hatch to allow the spacewalkers to conduct a one-hour O2<br />pre-breathe while exercising. The A/L crew lock was then depressurized to<br />vacuum. Hatch opening by Sox was delayed by 20 minutes due to interference<br />by the thermal hatch cover fabric.<br /><br />The Stage EVA began at 7:50am when the EMUs were switched to internal power,<br />and ended at 2:41pm, after a duration of 6h 51m, with almost all objectives<br />completed. [With Budarin acting as IV (intravehicular crewmember), Bowersox<br />and Pettit conducted all tasks smoothly and without hitch, except for the<br />installation of a light fixture on a boom stanchion on one of the two CETA<br />(crew equipment translation aid) railcarts on S1, due to a problem with boom<br />rotation (a pin not dislodging). This low-priority task was deferred to a<br />future spacewalk. Sox and Don completed the release of 10 launch restraint<br />locks, monitored the successful deployment and lock-down of the huge central<br />P1 radiator panel (75 ft), cleaned off the Node nadir ACBM (active common<br />berthing module) docking surface with sticky tape, conducted a systems check<br />of the filled ammonia coolant reservoir on the P6 truss, and relocated &<br />inventoried Z1 and A/L tool box tools. After EVA cleanup, the crew returned<br />to the A/L, cut off a fabric loop on the inside of the thermal hatch cover<br />that had caused the initial hang-up, and completed the spacewalk. It was the<br />50th EVA of station assembly, the 25th from the ISS (the others from the<br />Shuttle), and the 16th from the Joint A/L (the others from the Russian<br />DC-1), but only the second with no Shuttle present. Total US EVA time for<br />ISS is now 312h 11m (144h 56m from the A/L).]<br /><br />After Budarin had assisted the spacewalkers with suit doffing and other<br />post-EVA activities, he prepared the "Urolux" equipment for tomorrow's<br />scheduled post-EVA session of the Russian biochemical urine test (PZE MO-9).<br /><br />Earlier in the day, Bowersox had performed the daily Lab payloads status<br />checkup, while Budarin completed his daily inspection of the Russian BIO-5<br />Rasteniya-2/Lada-2 ("Plants-2") experiment.<br /><br />The MCA (major constituents analyzer) has been working again since yesterday<br />and was calibrated successfully, alleviating the need for daily manual O2<br />and CO2 data takes by the crew.<br /><br />Crew sleep period begins at the regular 4:30pm EST.<br /><br />Later tonight, at 6:00pm, attitude control authority will be handed over to<br />Russian MCS (motion control system) thrusters for maneuvering the station<br />from the current LVLH (local vertical/local horizontal) "earth-fixed"<br />attitude to solar-oriented XPOP (x-axis perpendicular to orbit plane) at<br />6:15pm. Half an hour later, attitude control will be returned to U.S. CMG<br />momentum management.<br /><br />Today's (optional) targets for the CEO (crew earth observations program)<br />were Dakar, Senegal (looking right for Dakar; and left for a well-formed,<br />feathered jet stream cloud, stretching from Senegal to Egypt [related<br />dynamically to the present storm in the Mediterranean]), St. Thomas Island,<br />Caribbean (nadir pass. Of interest: coral reef detail), St. John Island,<br />Caribbean(nadir pass. Of interest: coral reef detail), St. Croix Island,<br />Caribbean (nadir pass. Of interest: coral reef detail) and Lower Amazon<br />River Basin (views left and right of the enormous estuary of the planet's<br />largest river. Locations and shapes of islands in the estuary are now known<br />to change all the time).<br /><br />CEO images can be viewed at the website<br />http://eol.jsc.nasa.gov<br /><br />U.S. and Russian Segment Status (as of 1:15pm EST).<br /><br />Environmental Control and Life Support (ECLSS) and Thermal Control (TCS):<br />Elektron O2 generator is powered On (16 Amp mode). Vozdukh CO2 scrubber is<br />Off (but functional). U.S. CDRA CO2 scrubber is Off. TCCS (trace contaminant<br />control subsystem) is operational. MCA (major constituents analyzer) is<br />operating. BMP Harmful Impurities unit: Absorbent bed #1 in Purify mode, bed<br />#2 in Purify mode.<br /><br />SM Working Compartment: Pressure (mmHg) -- 753; temperature (deg C) -- 22.3;<br />ppO2 (mmHg) -- 159.3; ppCO2 (mmHg) -- 2.4 (suspect).<br />SM Transfer Compartment: Pressure (mmHg) -- 751; temperature (deg C) --<br />18.6.<br />FGB Cabin: Pressure (mmHg) -- 752; temperature (deg C) -- 22.0.<br />Node: Pressure (mmHg) -- 748.98; temperature (deg C) -- 23.1 (shell); ppO2<br />(mmHg) -- n/a; ppCO2 (mmHg) -- n/a.<br />U.S. Lab: Pressure (mmHg) -- 751.18; temperature (deg C) -- 22.6; ppO2<br />(mmHg) -- n/a; ppCO2 (mmHg) -- n/a;<br />Joint Airlock (Equip. Lock): Pressure (mmHg) -- 751.18, temperature (deg<br />C) -- 21.1; shell heater temp (deg C) -- 21.6, ppO2 (mmHg) -- 164.6; ppCO2<br />(mmHg) -- 4.1 (MCA freshly calibrated).<br />PMA-1: Shell heater temp (deg C) -- 23.5<br />PMA-2: Shell heater temp (deg C) -- 19.1<br />(n/a = data not available)<br /><br />Propulsion System (PS): Total propellant load available (SM + FGB +<br />Progress) -- 3689 kg (8133 lb) [as of 1/9/03].<br /><br />Electrical Power Systems (EPS):<br />Both P6 channels fully operational. Beta Gimbal Assembly (BGA) 2B and BGA 4B<br />both in Autotrack (sun-following) mode.<br />SM batteries (as of 3am): Battery #7 is off line (failed); battery #4 is in<br />"Cycle" mode; all other batteries (6) are in "Partial Charge" mode.<br />FGB batteries (3am): Batteries #3 is offline (failed); all other batteries<br />(5) are in "Partial Charge" mode.<br />Plasma Contactor Unit PCU-1 and PCU-2 were active during the EVA. Back on<br />Standby afterwards.<br /><br />Thermal Control Systems:<br />Air conditioner SKV-1 is Off, SKV-2 is Off.<br /><br />Command & Data Handling Systems:<br />C&C-1 MDM is prime, C&C-2 is back-up, and C&C-3 is in standby.<br />GNC-1 MDM is prime; GNC-2 is Backup (new patches loaded on both).<br />EXT-2 is On (primary), EXT-1 is off.<br />LA-1, LA-2 and LA-3 MDMs are all operating.<br />PL-1 MDM is On (primary); PL-2 MDM is off (diagnostic<br />APS-1 (automated payload switch #1) and APS-2 are both On.<br />SM Terminal Computer (TVM): 2 redundant lanes (of 3) operational. Lane 1 is<br />down (as of 11/14).<br />SM Central Computer (TsVM): 3 redundant lanes (of 3) operational.<br /><br />Attitude Source:<br />3 CMGs on-line (CMG-1 failed).<br />State vector -- U.S. SIGI-1<br />Attitude -- U.S. SIGI-1<br />Angular rates -- U.S. RGA-1<br /><br />Flight Attitude:<br />LVLH TEA (local vertical/local horizontal = "earth-fixed": z-axis in local<br />vertical, x-axis in velocity vector [yaw: -10 deg, pitch: -9.1 deg, roll: 0<br />deg]) until 6:15pm EST tonight, then XPOP.<br /><br />Communications & Tracking Systems:<br />FGB MDM-1 is powered Off; FGB MDM-2 is operating.<br />All other Russian communications & tracking systems are nominal.<br />S-band is operating nominally.<br />Ku-band is operating nominally.<br />Audio subsystem operating nominally.<br />Video subsystem operating nominally.<br />MCOR (medium-rate communications outage recorder) is operating nominally.<br /><br />Robotics:<br />SSRMS/Canadarm2 based at Lab PDGF with Keep Alive (KA) power on both<br />strings.<br />MBS: KA power on both strings. MT: at WS7, with KA power. POA: KA power on<br />both strings.<br />RWS (robotics workstations): Lab RWS is Off; Cupola RWS is Off.<br /><br />ISS Orbit (as of this morning, 7:07am EST [= epoch]):<br />Mean altitude -- 390.1 km<br />Apogee -- 393.9 km<br />Perigee -- 386.3 km<br />Period -- 92.36 min.<br />Inclination (to Equator) -- 51.63 deg<br />Eccentricity -- 0.00056<br />Orbits per 24-hr. day -- 15.59<br />Altitude loss -- 180 m (mean) in last 24 hours<br />Revolutions since FGB/Zarya launch (Nov. '98) -- 23718<br /><br />For more on ISS orbit and worldwide naked-eye visibility dates/times, see<br />http://www.hq.nasa.gov/osf/station/viewing/issvis.html