CREAM Monthly Status Review MSR ULDB CREAM MSR

CREAM Monthly Status Review (MSR) ULDB CREAM MSR Telecommunications System Ron Taylor CREAM PROJECT Telecommunications PDL Nov. 5, 2003 rktaylor@pop 500. gsfc. nasa. gov 757 -824 -1391 Ron Taylor Code 569 Nov. 5 2003 1

Current Status (since last MSR) ULDB CREAM MSR • ADU 5 GPS Spare Receiver returned from factory. – COCOM Limits test performed/passed • ADU 5 GPS Antenna TVAC test completed. • RF switch TDRSS system: – ADP and Phase 4 test complete. • OTH Termination system: CPU: software format testing verification GPS: Phase 4 complete Iridium: Phase 4 complete Relay Board: Phase 4 complete • HGA System: - software format testing verification Ron Taylor Code 569 Nov. 5 2003 2

Current Status (since last MSR) ULDB CREAM MSR • 2 Polar Upper Looking TDRSS Antenna’s manufactured for flight. • 17 ADP open items closed • OTH System Spec. Doc signed off • Telecom Block Diagram Doc. Signed • Attended Mission Operations Meeting at NSBF • Evaluating ULDB to Zero Pressure Configuration • Supporting I&T activities Ron Taylor Code 569 Nov. 5 2003 3

CONCERNS/ISSUES ULDB CREAM MSR • TDRSS SYSTEM DIPLEXER’S – Diplexer failure on NSBF flight may initiate a recall of all diplexer’s. – 2 CREAM diplexers have been sent to NSBF for internal contamination investigation. • Brain Stilwell(NSBF)is working the issue with the manufacture – Timing concern for PHASE 5 testing and CDM Thermal VAC. Ron Taylor Code 569 Nov. 5 2003 4

Next Month Objectives ULDB CREAM MSR • Delta CDR Review for Telecommunications – Evaluate changes and change Spec Doc’s. • • Complete HGA System Phase 4 Complete OTH Termination Phase 4 Continue Thermal testing of Spare’s Polar TDRSS Antenna testing Complete TDRSS Spec Doc. Antenna ADP’s for CDM. Continue to support I&T activities Ron Taylor Code 569 Nov. 5 2003 5