ISS On-Orbit Status 2/10/03<br /><br />All ISS systems continue to function nominally, except as noted previously<br />or below. Day 79 in space for the Expedition 6 crew. Week 11 for Increment<br />6.<br /><br />Before breakfast, all crewmembers completed another session of the periodic<br />Russian medical experiment protocols PZEh-MO-7 (calf volume measurement) and<br />PZEh-MO-8 (body mass measurement). FE-1 Nikolai Budarin set up the MO-8<br />"scales" equipment and later broke it down and stowed it away. [Calf<br />measurements (left leg only) are taken with the ISOG device, a custom-sewn<br />fabric cuff that fits over the calf, using the knee and lower foot as fixed<br />reference points, to provide a rough index of deconditioning in zero-G and<br />effectiveness of countermeasures. For determining body ass in zero-G, where<br />things are weightless (but not massless), the Russian IM "scales" measure<br />the inertial forces that arise during the oscillatory motion of a mass<br />driven by two helical metering springs with known spring constants. By<br />measuring the time period of each oscillation of the unknown mass (the<br />crewmember) and comparing it to the period of a known mass, the crewmember's<br />mass is calculated by the computer and displayed].<br /><br />Later in the day, Budarin started another round of the Russian MBI-8<br />"Profilaktika" (countermeasures) fitness test series, today on the VELO<br />(stationary bike ergometer). [The test is identical to the Russian MO-5<br />assessment, but in addition to the nominal test procedure, it calls for the<br />use of the TEEM-100M gas analyzer, measurement of the lactate level in the<br />subject's blood with the AccuSport device, and subjective evaluation of<br />physical exertion levels during the test. Results were entered on a log<br />sheet. TEEM and ECG (electrocardiograph) data were transferred to Laptop 3<br />and prepared for later downlink via Regul-Packet comm.]<br /><br />Budarin and CDR Ken Bowersox continued unloading and stowing cargo from<br />Progress 10P while keeping track of items for the IMS (inventory management<br />system) database.<br /><br />A PCS HDD (portable computer system/hard disk drive) swap scheduled for<br />Bowersox today was deferred to next week.<br /><br />FE-2/SO Don Pettit worked on EXPRESS Rack 2 (ER2), setting the ARIS (active<br />rack isolation system) up for standard control, by removing the ARIS ICE<br />(isolation characterization experiment) Type 1553 cable and replacing it<br />with a shorting plug.<br /><br />Preparations for troubleshooting the deactivated MSG (microgravity science<br />glovebox) continue on the ground, and a tagup/conference was conducted with<br />Don Pettit at 11:00am EST. [The working group established by the<br />ESA/Industrial Team and the Inquiry Board at ESA/ESTEC (Noordwijk/Holland)<br />is narrowing down the possible causes of the failure. It already appears<br />that the circuit breaker tripping was not a hard short-circuit but due to a<br />non-nominal overload on the 12Vdc line, which also affected the data<br />transmission within the MSG core facility. Until the failure is completely<br />isolated, the Glovebox rack will not be powered up, to avoid<br />"waterfall"-type failures in its different subsystems. ESA inputs to MSFC<br />POC (Payload Operations Center) for the physical troubleshooting were<br />expected not earlier than today. Actual on-orbit troubleshooting is<br />scheduled for Wednesday (2/12), after another teleconference with Pettit<br />tomorrow.]<br /><br />Nikolai Budarin took an EVARM (EVA radiation monitoring) badge reading,<br />first unstowing and powering up the EVARM Reader, letting it warm up, then<br />reading all badges and finally turning the Reader off again. [These badge<br />readings help characterize the on-board radiation trends prior to and after<br />an EVA.]<br /><br />Nikolai performed the daily routine task of SOSh life support system (incl.<br />ASU toilet system) maintenance, Don prepared the daily IMS "delta" file for<br />updating the inventory database, and Sox conducted the daily status check of<br />Lab payloads.<br /><br />Pettit continued the daily monitoring of CO2 partial pressure (ppCO2) levels<br />in the SM and Lab (two readings) with the CO2 monitoring kit (CDMK).<br /><br />Budarin completed his routine 24-hr. checkup and watering of the Russian<br />BIO-5 Rasteniya-2/Lada-2 ("Plants-2") plant growth experiment.<br /><br />MCC-Houston continued IMV (intermodular ventilation) troubleshooting. [One<br />of the crew's task list items in support of this activity is to check the<br />Node "butterfly" plate (valve) positions. The ground is also unpowering and<br />repowering the IMV fans at the Node aft port, Node aft starboard, and Lab<br />aft port positions fans to capture and compare their power (current)<br />signatures.]<br /><br />Using the Kodak DSC760 or Nikon D1 digital camera, Budarin had 15 min.<br />scheduled for today's Uragan ("hurricane") Earth observations. [Nikolai was<br />advised to take a series of images of the Genaldon River valley and the<br />Northern slope of Kazbek-Dzhimarai mountain plexus in Russia,- former<br />location of the Kolka Glacier. Land-based survey and aerial survey of the<br />area are being conducted today as well. An Inter-Departmental Commission is<br />currently evaluating the status of Kolka and Maili Glaciers and the<br />condition of the debris/ice cone associated with these glaciers. Based on<br />the results of this research, the Commission will develop recommendations on<br />the continuation/improvement or possible cessation of activities that are<br />currently being carried out in the area. This is why the ISS-based imagery<br />of the area is such an important part of this effort.]<br /><br />Coming up tomorrow: (a) ISS reboost by Progress 10P [for 21-22 minutes at<br />6:34am EST, using 430 kg propellants for ~6 m/sec delta-V. Altitude increase<br />of 10.4 km is calculated to protect a possible Shuttle launch in mid-June<br />(Shuttle-compatible altitude: 320 km).] (b) Transfer of 20 liters water from<br />the Lab condensate tank to a CWC (contingency water container).]<br /><br />Today's targets for the CEO (crew earth observations program) were Riyadh,<br />Saudi Arabia (the Saudi capital lied just right of track), Lisbon, Portugal<br />(ISS had a nadir pass over the Portuguese capital, situated just inland on<br />the north shore of the Tagus River estuary), Mexico City, Mexico (crew had a<br />nice, midday pass at nadir over the Mexican capital city), Tucson, Arizona<br />(weather may be marginal by the time of this pass, otherwise it will be a<br />nadir view in midday sun of this desert city), and Albuquerque, New Mexico<br />(fair weather should hold over this target. Crew had a nadir view of the<br />city located mostly east of the Rio Grande River).<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 1:45pm EST).<br /><br />Environmental Control and Life Support (ECLSS) and Thermal Control (TCS):<br />Elektron O2 generator is powered On (32 Amp mode). Vozdukh CO2 scrubber is<br />On (auto mode). U.S. CDRA CO2 scrubber is Off. TCCS (trace contaminant<br />control subsystem) is operating. MCA (major constituents analyzer) is<br />operating. BMP Harmful Impurities unit: Absorbent bed #1 in Regeneration<br />mode, bed #2 in Purify mode. RS air conditioner SKV-1 is On; SKV-2 is Off.<br /><br />SM Working Compartment: Pressure (mmHg) -- 753; temperature (deg C) -- 27.6;<br />ppO2 (mmHg) -- 160.9; ppCO2 (mmHg) -- 2.5 (suspect).<br />SM Transfer Compartment: Pressure (mmHg) -- 751; temperature (deg C) --<br />20.4.<br />FGB Cabin: Pressure (mmHg) -- 752; temperature (deg C) -- 21.7.<br />Node: Pressure (mmHg) -- 744.52; temperature (deg C) -- 21.5 (shell); ppO2<br />(mmHg) -- 167.2; ppCO2 (mmHg) -- 5.2.<br />U.S. Lab: Pressure (mmHg) -- 747.04; temperature (deg C) -- 22.8; ppO2<br />(mmHg) -- n/a; ppCO2 (mmHg) -- n/a;<br />Joint Airlock (Equip. Lock): Pressure (mmHg) -- 746.94; temperature (deg<br />C) -- 20.9; shell heater temp (deg C) -- 22.2, ppO2 (mmHg) -- n/a; ppCO2<br />(mmHg) -- n/a.<br />PMA-1: Shell heater temp (deg C) -- 22.2<br />PMA-2: Shell heater temp (deg C) -- 17.0<br />(n/a = data not available)<br /><br />Propulsion System (PS): Total propellant load available [SM(820) + FGB(2804)<br />+ Progress(868)] -- 4492 kg (9903 lb) as of 2/6/03. (Capability: SM -- 860<br />kg; FGB -- 6120 kg).<br /><br />Electrical Power Systems (EPS):<br />Both P6 channels fully operational. Beta Gimbal Assembly (BGA) 2B and 4B<br />both in "blind" dual-angle mode (directed position).<br />SM batteries: Batteries #6 and #7 are off line; all other batteries (6) are<br />in "Partial Charge" mode.<br />FGB batteries: Battery #1 is off line; all other batteries (5) are in<br />"Partial Charge" mode.<br />Plasma Contactor Unit PCU-1 and PCU-2 both in Standby mode.<br /><br />Command & Data Handling Systems:<br />C&C-3 MDM is prime, C&C-2 is back-up, and C&C-1 is in standby.<br />GNC-1 MDM is prime; GNC-2 is Backup.<br />EXT-1 is On (primary), EXT-2 is off.<br />LA-1, LA-2 and LA-3 MDMs are all operating.<br />PL-2 MDM is On (primary); PL-1 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 />out of the set (as of 11/14/02).<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 (GPS)<br />Attitude -- U.S. SIGI-1 (GPS)<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]), CMG/TA (thruster assist) momentum management).<br />Solar Beta Angle: -30.0 deg (magnitude increasing).<br /><br />Communications & Tracking Systems:<br />FGB MDM-1 is powered Off; FGB MDM-2 is operational.<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, but VTR1 is off.<br />HCOR (high-rate communications outage recorder) is operating nominally.<br /><br />Robotics:<br />SSRMS/Canadarm2 based at MBS PDGF2 with Keep Alive (KA) power on both<br />strings.<br />MBS: KA power on both strings.<br />MT: latched at WS4, with KA power.<br />POA: KA power on both strings.<br />RWS (robotics workstations): Lab RWS is Off; Cupola RWS is Off.<br /><br />ISS Orbit (as of this morning, 6:48am EST [= epoch]):<br />Mean altitude -- 385.8 km<br />Apogee -- 389.5 km<br />Perigee -- 382.1 km<br />Period -- 92.27 min.<br />Inclination (to Equator) -- 51.64 deg<br />Eccentricity -- 0.000544<br />Orbits per 24-hr. day -- 15.60<br />Mean altitude loss in last 24 hours -- 200 m<br />Solar Beta Angle -- -30.0 deg (magnitude decreasing)<br />Revolutions since FGB/Zarya launch (Nov. '98) -- 24124<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