ISS On-Orbit Status 12 Aug 2003<br /><br /> All ISS systems continue to function nominally, except as noted previously<br />or below.<br /><br />After wake-up (2:00am EDT), before breakfast and exercise, CDR Yuri<br />Malenchenko completed the periodic Russian MedOps test "Hematokrit" (MO-10),<br />which measures the blood's red cell count. [The blood sample was drawn from<br />a finger with a perforator lancet, then centrifuged in two microcapillary<br />tubes in the M-1100 kit's minicentrifuge, and its hematocrit value was read<br />off the tubes with a magnifying glass. It is a well-known phenomenon of<br />space flight that red blood cell count (normal range: 30-45%) tends to go<br />down over time.]<br /><br />Immediately afterwards, Malenchenko configured the Russian payload laptop 3<br />and performed the MBI-1 SPRUT-K experiment, part of Russian medical research<br />on the distribution and behavior of human body fluids in zero gravity. [The<br />experiment involves use of the Sprut ("squid") securing harness and skin<br />electrodes (cuffs), along with laptop 3, which was then reconfigured to its<br />nominal settings.]<br /><br />FE/SO Ed Lu completed the fourth 30-day functionality ("health") test of the<br />HRF GASMAP (Human Research Facility/Gas Analyzer System for Metabolic<br />Analysis Physiology). Last time done: 7/14. [After unstowing, cabling and<br />powering up the equipment, he let it run for 3 hrs. in standby mode, then<br />performed a health check and reconfigured the system for a 2-hr. low power<br />rundown. Afterwards, about 6 hrs. after power-up, the GASMAP was<br />deactivated, disconnected and stowed again.]<br /><br />Yuri Malenchenko began with the scheduled transfer of liquid waste to the<br />empty Rodnik water storage tanks (BV1, BV2) of 10P/Progress-247. Today's<br />operation transferred stored urine from 4 EDV-U containers into tank BV1,<br />from a total of 17 filled EDVs. The work will be continued tomorrow and<br />Thursday (8/14). [In preparation for this activity, on 8/4 Yuri had<br />pressurized the folded bladders of the 10P Rodnik water storage tanks. Each<br />of the two spherical tanks consists of a hard shell with a soft membrane<br />(bladder) composed of elastic fluoroplastic, which is used to expel water<br />from the tank by compressed air pumped into the tank volume surrounding the<br />bladder.]<br /><br />The crew completed the replacement of the TVIS/treadmill roller bearing<br />assemblies begun yesterday. [After yesterday's swap-out of the ten<br />centermost bearings on the left side of the TVIS' internal truss and removal<br />of the corresponding ten bearings on the right side, Ed and Yuri finished<br />the job today with the installation of the second set of ten roller<br />assemblies. The crew was congratulated on doing a "fantastic job" on the<br />IFM (in-flight maintenance).]<br /><br />Ed Lu had a 15-min. time block reserved for stowing any ancillary EMU items<br />that may still have been unstowed after the EMU/spacesuit #3005 resizing and<br />fit checking on 8/7. [The next EVA/EMU troubleshooting is scheduled for<br />8/15 (Friday). Even after Ed's and the ground's best attempts to date, EMU<br />#3013 still fails to provide any cooling. Next step will be for Ed to go<br />underneath the TMG (thermal micrometeoroid garment) outer layer to look for<br />various component failures or clogged filters. The situation for EMU #3005,<br />which exhibits intermittent or degraded cooling, provides a new signature<br />for consideration, and its data are still being analyzed. By having Ed Lu<br />perform water flow tests on #3013 on 8/15, component failures could possibly<br />be ruled out that would be unique to having no cooling flow, and converge on<br />a common, more generic issue related to degraded flow or filter clogging of<br />the spacesuits.]<br /><br />During the time allotted for his TVIS troubleshooting, Ed Lu completed the<br />PFMI (Pore Formation and Mobility Investigation) set-up in the MSG<br />(Microgravity Science Glovebox). [For this purpose, the MSG was powered up<br />by the ground beforehand, later to be deactivated again.]<br /><br />The Science Officer also had another go at setting up the EPO (Educational<br />Payload Operations) demonstration of EVA/IVA tools scheduled to be performed<br />and videotaped tomorrow. [The demo was postponed on 8/7 because of the<br />extended EMU activities.]<br /><br />The CDR performed the regular daily routine tasks of SOZh life support<br />system maintenance and also the inventory management system (IMS) delta file<br />preparation.<br /><br />Both crewmembers worked out in their daily 2.5-h program of physical<br />exercise, on the RED expander and TVIS treadmill.<br /><br />For today's scheduled troubleshooting of the SAMS (Space Acceleration<br />Measurement System), currently in the MSG awaiting the PFMI experiment<br />initiation, Ed Lu conducted a checkout of its laptop, battery and PCB (power<br />conversion box). [This isolated the three major components of SAMS in the<br />ICU (Interface Control Unit) drawer. The results of these activities will<br />determine what spares need to be installed to get SAMS up and running.]<br /><br />The Russian SKV-1 air conditioner continues to operate OK, as do both KOB<br />thermal loop pumps. [Background: Since the SKV was deactivated on 8/7 there<br />has been only minimal collection of condensate in the Lab module. Overall<br />the system has been configured to minimize US segment (USOS) condensate<br />collection during Expedition 7. SKV was controlling dew point to ~45F (7.2<br />degC) and the Lab CCAA (common cabin air assembly) air conditioner was set<br />to control dew point to ~53F (11.7 degC). Preliminary ground estimates were<br />that ~6 lbs of condensate were absorbed into the atmosphere, and that some<br />additional amounts are unaccounted for in the total amount of condensate<br />that should have been generated over the time the SKV was deactivated. The<br />crew checked for water on the Airlock (A/L) CCAA heat exchanger jumper hose,<br />to assess whether there was condensation buildup in the A/L and the heat<br />exchanger of the inactive A/L CCAA, one of the local "cold spots" that could<br />attract condensate.]<br /><br />Initial USSPACECOM notification was received of a conjunction with the<br />second or third stage from a Chinese Long March 4B (CZ-4B) vehicle launched<br />10/27/02 (object #27551). Preliminary TCA (time of closest approach):<br />Thursday (8/14), 7:41pm EDT. The conjunction is of moderate concern due to<br />the relatively small radial miss distance of 172 m. Cross section: 11.2<br />squ.m. (120 squ.ft.). Radar tracking has been increased, and MMC-H<br />continues to monitor. [The purpose of the CZ-4B is to launch Chinese<br />sun-synchronous orbit meteorological satellites.]<br /><br />Today's CEO (crew earth observation) targets, no longer limited in the<br />current LVLH attitude and including the targets of the Lewis & Clark<br />200-year memorial locations, were Lower Amazon River Basin (pass over the<br />big island in the center of the estuary. Pointing left and right),<br />Guadalajara, Mexico (nadir pass), Lahore, Pakistan (this capital of Punjab<br />has nearly 4.5 million inhabitants), Berlin, Germany (hot clear weather<br />persists), Denver, Colorado (nadir pass), Pomeroy, Washington (on their<br />return eastward, the Lewis & Clark explorers decided to go overland in order<br />to avoid battling upstream against the strong Snake River, traveling<br />through the village of Pomeroy, WA), Forks of Clearwater (LEWIS & CLARK<br />SITE: At Canoe Camp, Oct 1, 1805, one of the diarists reported that most of<br />the men in the party were very weak. To save them from labor, they made new<br />canoes using the Indian method of burning out the interior of logs rather<br />than using axes), Great Falls, MT (LEWIS & CLARK SITE: The Missouri River<br />drops more than 400 feet in ten miles here. The explorers spent more than a<br />month here in June-July 1805, and noted the value of this site for<br />hydro-power generation. Now the Ryan Dam occupies the site. The site lies<br />on the river, at the city of Great Falls, where the highway crosses the<br />river, all at nadir), and Mouth of Marias River (LEWIS & CLARK SITE: The<br />Marias is a large, meandering river that joins the Missouri from the<br />northwest (about 80 miles northeast of Great Falls). The river valley that<br />includes Lake Elwell Reservoir is at nadir. On the return trip of the<br />expedition in the summer of 1806, Lewis and nine men temporarily separated<br />from the main party to explore this river and valley). CEO images can be<br />viewed at the websites<br /><br />http://eol.jsc.nasa.gov<br />http://earthobservatory.nasa.gov<br /><br />See also the website "Space Station Challenge" at<br /><br />U.S. and Russian Segment Status (as of 1:25pm EST).<br /><br />Environmental Control and Life Support (ECLSS) and Thermal Control (TCS):<br /><br />Elektron O2 generator is powered Off. Vozdukh CO2 scrubber is On (in Manual<br />Mode 5/3). U.S. CDRA CO2 scrubber is Off. TCCS (trace contaminant control<br />subsystem) is operating. MCA (major constituents analyzer) is operating.<br />BMP Harmful Impurities unit: absorbent bed #1 in Purify mode, bed #2 in<br />Purify mode. RS air conditioner SKV-1 is On; SKV-2 is Off.<br /><br /><br />SM Working Compartment: Pressure (mmHg) -- 742; temperature (deg C) --<br />26.3; ppO2 (mmHg) -- data invalid; ppCO2 (mmHg) -- data invalid.<br />SM Transfer Compartment: Pressure (mmHg) -- 741; temperature (deg C) --<br />20.0.<br />FGB Cabin: Pressure (mmHg) -- 744; temperature (deg C) -- 22.3.<br />Node: Pressure (mmHg) -- 735.62; temperature (deg C) -- 23.5 (shell); ppO2<br />(mmHg) -- 162.4; ppCO2 (mmHg) -- 3.1.<br />U.S. Lab: Pressure (mmHg) -- 737.95; temperature (deg C) -- 23.3; ppO2<br />(mmHg) -- n/a; ppCO2 (mmHg) -- n/a.<br />Joint Airlock (Equip. Lock): Pressure (mmHg) -- 738.15; temperature (deg<br />C) -- 27.0; shell heater temp (deg C) -- 23.8, ppO2 (mmHg) -- n/a; ppCO2<br />(mmHg) -- n/a.<br />PMA-1: Shell heater temp (deg C) -- 24.7<br />PMA-2: Shell heater temp (deg C) -- 16.0.<br /><br />(n/a = data not available)<br /><br />Propulsion System (PS):<br /><br />Total propellant load available: 3646 kg (8038 lb) as of 7/31 [SM(774) +<br />FGB(2872) + Progress M(0) +Progress M-1(0)]. (Capability: SM -- 860 kg;<br />FGB -- 6120 kg).<br /><br />Electrical Power Systems (EPS):<br /><br />Both P6 channels fully operational. BGA (beta gimbal assembly) 2B and 4B<br />both in Autotrack (solar<br />tracking with 45 deg bias for drag reduction).<br />SM batteries: Battery #5 is off line(Capacity Restoration mode, ROM);<br />battery #6 is in "Cycle" mode; all other batteries (6) are in "Partial<br />Charge" mode. Batteries #1and #3 showing degraded capacity.<br />FGB batteries: Battery #1 is off line (Capacity Restoration mode, ROM); all<br />other batteries (5) are in "Partial Charge" mode.<br />Plasma Contactor Unit PCU-1 in Standby mode; PCU-2 in Standby mode.<br /><br />Command & Data Handling Systems:<br /><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.<br />INT-1 is operating; INT-2 is Off.<br />EXT-2 is On (primary), EXT-1 is Off (both now upgraded to R3).<br />LA-1, LA-2 and LA-3 MDMs are all operating.<br />PL-2 MDM is Off; PL-1 MDM is Operational.<br />APS-1 (automated payload switch #1) and APS-2 are both On.<br />SM Terminal Computer (TVM): 3 redundant lanes (of 3) operational.<br />SM Central Computer (TsVM): 3 redundant lanes (of 3) operational.<br /><br />Attitude Control Systems:<br /><br />3 CMGs on-line (CMG-1 failed).<br />State vector source -- U.S. SIGI-1 (GPS)<br />Attitude source -- U.S. SIGI-1 (GPS)<br />Angular rate source -- RGA-1<br /><br />Flight Attitude:<br /><br />XPOP (x-axis perpendicular to orbit plane = "sun-fixed" [yaw: 0.5 deg,<br />pitch: -9.0 deg., roll: 0 deg]), with CMG TA (thruster assist).Management.<br />Solar Beta angle: 22.2 deg (magnitude increasing).<br /><br />Communications & Tracking Systems:<br /><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 (on string 2).<br />Ku-band is operating nominally.<br />Audio subsystem is operating nominally (IAC-2 is prime).<br />Video subsystem operating nominally.<br />HCOR (high-rate communications outage recorder) is operating nominally.<br /><br />Robotics: S<br /><br />SRMS/Canadarm2 based at MBS PDGF #1 with Keep Alive (KA) power on both<br />strings.<br />MBS: KA power on both strings.<br />MT: latched and mated at WS4.<br />POA: KA power on both strings.<br />RWS (robotics workstations): Lab RWS is On (DCP connected); Cupola RWS is<br />Off.<br /><br />ISS Orbit (as of this morning, 11:35am EDT [= epoch]):<br /><br />Mean altitude -- 384.3 km<br />Apogee -- 389.7 km<br />Perigee -- 378.9 km<br />Period -- 92.24 min.<br />Inclination (to Equator) -- 51.63 deg<br />Eccentricity -- 0.0007989<br />Orbits per 24-hr. day -- 15.61<br />Solar Beta Angle -- 22.2 deg (magnitude increasing)<br />Mean altitude loss in last 24 hours -- 100 m<br />Revolutions since FGB/Zarya launch (Nov. '98) -- 26982<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