PDS_VERSION = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 1998-05-11 NOTE = "MGS RST Instrument Health Report HEA8131A.TXT" END_OBJECT = TEXT END Miscellaneous ============= Because of the weekend, this is the first health report since HEA8128A.TXT. During the MDDT meeting Friday, we learned that our SOPC will be upgraded from the present SPARC-2 to an Ultra-5 during the week of 6 July. The new machine will come with 128 MB RAM, 4 GB HD, a built-in CD reader, and a Yamaha 4x CD writer (2x reader). Exactly how our collection of peripherals is separated from the SPARC-2 and reattached to the Ultra 5 remains TBD. The old computer will be returned to a pool at JPL. The RSST SOPC (mmrs) is a SPARC-20, and the Project is not planning any changes in that machine. Tom Thorpe has requested bi-weekly reports on data processing. Initially these will be summaries of raw data archived at Stanford (CD-WO volumes cut) and the number of Standard Data Products (e.g., RSTP, RSIPS, SHADR, SHBDR) received at Stanford from Team Members. If you would like to receive a copy of these reports, send a request to rsimpson@magellan.stanford.edu. Engineering Data ================ No new data, presumably because of poor communications with the spacecraft. Open Loop Data ============== Data Collection --------------- No new data. Analysis -------- Joe Twicken has estimated Allan Deviation from one-way data leading up to the Solar Conjunction. His report: I have estimated the USO Allan deviation for one ODR in each of the three weeks before the spacecraft started to slew away from Earth prior to the ingress surface occultation. I used Goddard trajectory files (GDN) to steer the open-loop data. The stability was not good, and deteriorated from week to week. I assume that this performance is due to the ever-decreasing Sun-Earth-Mars angle. I don't believe that Dave has retrieved profiles from the last two ODR's (or the others acquired during the same time period). 98/091 98/098 98/107 t, sec AD AD AD ------- ---------- ---------- ---------- 0.4096 2.4999e-12 2.9111e-12 5.3263e-12 1.6384 1.0234e-12 1.6103e-12 2.8661e-12 3.2768 7.1372e-13 1.2055e-12 2.4422e-12 6.5536 4.9012e-13 1.0047e-12 2.1737e-12 26.2144 3.4480e-13 7.8407e-13 1.2867e-12 The 98/091 ODR was acquired during occultation #109 at DSS 34; SNR was 47 dB/Hz. The 98/098 ODR was acquired during occultation #122 at DSS 34; SNR was also 47 dB/Hz. The 98/107 ODR was acquired during occultation #142 at DSS 15; SNR was 50 dB/Hz. Closed Loop Data ================ Data Collection --------------- We have obtained the following files from OSCAR and EPIC: Original File Name Name on SOPC -------------------------------- ------------ ODF: 98117E124.DB;2 8117124A.ODF 98103E110.DB;3 8103110A.ODF 98127O128_10S.SJO;3 8127128C.ODF 98128O129.DAT;2 8128129A.ODF 98128O129_10S.SJO;2 8128129B.ODF 98129O130.DAT;1 8129130C.ODF 98129O130_10S.SJO;1 8129130D.ODF 98130O131.DAT;2 8130131A.ODF 98130O131_10S.SJO;1 8130131B.ODF EOP: 980508-eop.long 20208211.EOP 980508-eop.short 72108211.EOP ION: IONCAL_94_9805_DOPR.CSP;2 8121152B.ION WEA: WEATHER_10_LATEST.TXT;111 80011311.WEA WEATHER_40_LATEST.TXT;110 80011314.WEA WEATHER_60_LATEST.TXT;110 80011316.WEA Ancillary Data ============== Data Collection --------------- We have obtained the following files from the FIS: Original File Name Name on SOPC -------------------------------- ------------ OPT: optg_i_980507_OD288_352_V1 8127159A.OPT SPK: spk_i_980507_OD288_352_V1 8127159A.SPK