ISS On-Orbit Status 1/14/03<br /><br />All ISS systems continue to function nominally, except as noted previously<br />or below. A relatively light day for the crew, before tomorrow's spacewalk<br />by CDR Bowersox and FE-2/SO Pettit (no sleep cycle shift).<br /><br />EVA preparations are going well, and yesterday's prep dry-runs were<br />completed by all crewmembers with excellent results. [They confirmed good<br />EMU fit, and the CDR also practiced holding FE-2's legs in the Airlock (A/L)<br />as Pettit simulated performing the Node ACBM (active common berthing module)<br />cleaning task.]<br /><br />EVA Objectives: Prior to the EVA (egress: 7:30am EST), the MT (mobile<br />transporter) will be moved from WS7 (work station 7) at the end of the P1<br />truss to WS4, allowing sufficient time for crew assist if required (to<br />install MT extension cord). Planned EVA tasks are: (1) configure SFU (squib<br />firing unit) on P1 to launch condition; (2) release 10 launch restraint<br />locks (5 zenith, 5 nadir) on the P1 radiator beam; (3) inspect radiator beam<br />and monitor its deployment (with manual intervention if required); (4)<br />reconfigure SFU; (5) clean Node nadir ACBM (active common berthing module);<br />(7) preposition an APFR (articulating portable foot restraint) on the CETA<br />(crew equipment transfer aid) cart, and (8) perform get-ahead tasks as open<br />time permits. It will be the 50th EVA for ISS assembly, with 25 from Shuttle<br />and 25 from station (16 of these from the Joint Airlock, but it will be only<br />the second with no Orbiter present).<br /><br />Today, the crew had a final tag-up with ground specialists via S-band to<br />review EVA timeline and procedures. [The review included late timeline<br />changes as well as contingency cases, e.g., steps to be taken in the event<br />of LOAC (loss of CMG attitude control) during the MT (mobile transporter)<br />translation from WS7 (work station 7) to WS4 and P1 radiator deployment,<br />when the Russian segment thrusters are disabled (in which case MT or<br />radiator activity would immediately be stopped and safed). Also discussed<br />were onboard procedures required in case of loss of communications with the<br />spacewalkers or MCC-H.]<br /><br />CDR Ken Bowersox installed Metox (metal oxide) canisters and batteries in<br />the EMUs, one each in suit #3013 (CDR) and suit #3011 (FE-2). Also, both<br />spacewalkers prepared EVA hardware in the A/L equipment compartment.<br /><br />FE-1 Nikolai Budarin completed his daily routine inspection of the Russian<br />BIO-5 Rasteniya-2/Lada-2 ("Plants-2") experiment, which studies plant growth<br />in the zero-G environment.<br /><br />Budarin also prepared the commentary and photo documentation files of<br />yesterday's windows inspection in the Service Module (SM) and Docking<br />Compartment (DC-1) for downlink to MCC-M.<br /><br />Later, Nikolai worked on the SM's ASU toilet system, replacing the urine<br />receptacle filter insert (F-V).<br /><br />FE-2/SO Pettit continued his daily monitoring of the ACS (atmosphere control<br />and supply) system CO2 (carbon dioxide) levels in SM and Lab with the CDM<br />(CO2 monitor).<br /><br />For EVA video coverage, Pettit set up and checked out the VTR (video tape<br />recorder) bypass cable configuration on the CVIU (common video interface<br />unit) to provide additional camera views on two separate Sony V10 monitors<br />located at the Lab RWS (robotic work station). [Necessary VDS (video<br />distribution system) routing to two VTRs and VBSPs (video baseband signal<br />processors) was performed via S-band by the ground.]<br /><br />Don Pettit also completed the regular weekly maintenance of the TVIS<br />(treadmill with vibration isolation and stabilization), as usual at the end<br />of his exercise. [For their exercise on the treadmill, crewmembers are still<br />required to use the SPDs (subject positioning devices) and to limit their<br />running speed to no more than 6 mph.]<br /><br />The daily routine tasks of SOSh life support systems maintenance and Lab<br />autonomous payload status checkup were conducted by Bowersox, while Pettit<br />prepared the daily IMS inventory delta file for automated export to MCC-M.<br /><br />The S1 truss radiator beam was rotated by remote control on its TRRJ<br />(thermal radiator rotary joint) to an angle of 20 deg to provide clearance<br />for EVA translation.<br /><br />After the switch of the Lab CCAA (common cabin air assembly) from starboard<br />to port air conditioner on 1/12 in conjunction with CDRA (CO2 removal<br />assembly) activation, the port heat exchanger has experienced an increase in<br />the frequency of "wet" indications; two indications occurred yesterday. The<br />Lab temperature set point has now been increased to preclude further "wet"<br />indications, and the A/L CCAA has been activated to assist. The Lab CCAA set<br />point will be gradually reduced to the crew-requested temperature.