EOS-AM	LANDSAT 7	NOAA

Communication Systems - East (CS-E) has provided high quality data storage systems for space applications for four decades. The first recorders flown in space were developed for classified missions in the early 1960s. As the RCA corporation, we were a pioneer in the development of high performance, advanced state-of-the-art recording systems. Our recording sytems interfaced with a whole gamut of sensor systems ranging from standard to hi resolution television and all wide band data sources. Our recorders have flown on weather satellites, Earth resource satellites, space probes, manned space flights, surface and subsurface ships and high performance aircraft.

Space Missions include TIROS, ITOS, OGO, NIMBUS, ESSA, NOAA, TOPEX, SAX, SOLAR MAX, EUVE, ERTS, SAGE, ASTP, UVPI, LANDSAT, Skylab, Spacelab, MO, GGS, EOS, UARS and COBE.

Our NASA Standard Recorder (STR) is one example of our commitment to performance and reliability. STRs have logged over 4 million hours of on-orbit data and have never experienced a mission failure.

Of Note: The STRs launched on the NIMBUS-G Satellite remained operational in space for more than 17 years, logging more than one million hours of operation. The STRs were fully operational when the spacecraft was retired in 1995.

Addressing the needs of future remote sensing missions CS-E, in partnership with NASA GSFC, has developed the next generation of Solid State Data Storage Subsystems to support Landsat 7, EOS AM and POES (NOAA N, N').

CS-E SSRs are much more than simple large scale memory units. The design philosophy incorporates all file management functions, down link error detection and correction implementation, graceful end of life (EOL) degradation with autonomous memory re-allocation, complete SEU protection and full controller and power supply redundancy.

Core features and competencies in SSR Design and Fabrication include:

- Capacities from 3 Gbit to Multi-Terabits at rates to 16 Gigabits/sec.
- Radiation tolerance electronics including EDAC, microprocessor,
  ASICs, and PGAs. Additionally all memory components are Hi-Rel
  with reduced cost and weight resulting from RAD tolerance COTS
  packaged memory chips.
- Simultaneous read/write capability.
- Very low storage overhead for EDAC and ancillary data file and
  management functions.
- Fully redundant data and power back plane busses.

Points of Contact:
Paul Mellon, Program Manager, Space Communications
Bob Lisowski, Director, RF Systems