PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 2001-07-14 NOTE = "MGS RST Instrument Health Report HEA1195A.TXT" END_OBJECT = TEXT END Miscellaneous ============= Because of the weekend, this is the first report since HEA1194A.TXT. There was a scheduled power outage in our building at Stanford on Saturday 8 AM - 4 PM local time. Connection with the Mgs_CDR_QueryServer was not restored until this morning. As a result, we are behind in our queries for open loop, spacecraft engineering, and DSN monitor data. Data not covered in today's report will be in tomorrow's. Frank Lemoine relayed the following MOLA status report from Dave Smith: A MOLA diagnostic test of a 64-minute duration was performed just after Noon EDT Saturday, July 14. The instrument successfully returned all housekeeping packets while in maintenance mode but did not return science packets. We will study these data over the next few days but our impression so far is consistent with our opinion that the most likely cause of the MOLA anomaly is associated with the altimetry oscillator or first divider chip in the electronics box. There is no information as to whether the laser fired or was instructed to fire, but analysis of the test results may provide more information. While the instrument did not assume normal operation in the first diagnostic test, the data indicate the MOLA computer is working and that the instrument responds to commanding, which will facilitate further testing. We plan to request additional tests of the Project to further diagnose the anomaly. Engineering Data ================ Engineering Data Statistical Summary from CSV2STAT: First SCET: 2001-07-12T00:00:03.707 Last SCET: 2001-07-12T23:59:59.695 CHANNL CHANNEL TITLE DN-LO DN-HI EU-LO EU-HI EU-AVG/STDEV RECDS ------ ------------- ----- ----- --------- --------- ---------/-------- ----- F-0190 HGA_AZ_ANG 4165 4212 1.02E+00 1.03E+00 1.02E+00/5.23E-05 2699 F-0195 HGA_EL_ANG -11233 11089 -2.74E+00 2.71E+00 -1.37E+00/3.47E-02 2699 L-0034 MOT1_RANGING 0 0 5400 L-0036 MOT1_TLM_MOD 0 0 5400 L-0037 MOT1_USO_ENA 0 0 5400 L-0044 MOT2_RANGING 1 1 5400 L-0046 MOT2_TLM_MOD 0 1 5400 L-0047 MOT2_USO_ENA 1 1 5400 L-0053 RF_SW_OSC 2 2 5400 L-0060 TWTA1_FILMNT 0 0 5400 L-0061 TWTA1_HV 0 0 5400 L-0070 TWTA2_FILMNT 0 1 5400 L-0071 TWTA2_HV 0 1 5400 L-0080 USO_PWR 0 0 5400 L-0090 KaBLE_STAT 0 0 5400 L-0091 KaBLE_ENABLE 1 1 5400 L-0111 MOT1_RCV_AGC 255 255 -1.53E+02 -1.53E+02 -1.53E+02/8.20E-07 5400 L-0121 MOT2_RCV_AGC 126 255 -1.53E+02 -1.13E+02 -1.44E+02/2.04E-01 5400 L-0131 TWTA1_HLX_I 0 1 -3.84E-02 -1.85E-02 -3.82E-02/2.10E-05 5400 L-0132 TWTA1_ANOD_V 0 1 -1.00E+03 -1.00E+03 -1.00E+03/1.43E-02 675 L-0141 TWTA2_HLX_I 18 43 3.06E-01 8.05E-01 5.10E-01/2.73E-03 5400 L-0142 TWTA2_ANOD_V 61 230 -8.66E+02 -5.28E+02 -6.68E+02/6.22E+00 675 L-0200 USO_REG_V 203 205 4.06E+00 4.10E+00 4.08E+00/2.22E-04 675 L-0201 USO_OVEN_V 129 131 2.58E+00 2.62E+00 2.59E+00/3.80E-04 675 T-0302 EPC1_T 173 196 -4.19E+00 5.28E+00 -5.59E-01/1.09E-01 675 T-0303 EPC2_T 176 191 -2.00E+00 4.09E+00 6.12E-02/7.18E-02 675 T-0310 RF_ISOLTR1_T 227 233 -6.05E+00 1.06E+00 -2.47E+00/1.69E-02 5400 T-0311 RF_ISOLTR2_T 217 233 -6.05E+00 1.01E+01 1.30E+00/6.77E-02 5400 T-0312 TWT1_T 225 232 -4.77E+00 3.13E+00 -9.42E-01/5.46E-02 675 T-0313 TWT2_T 211 233 -6.05E+00 1.43E+01 2.99E+00/2.67E-01 675 T-0315 USO_T 139 143 2.09E+01 2.20E+01 2.14E+01/8.10E-03 675 T-0316 KA_AMP_T 212 219 8.56E+00 1.37E+01 1.06E+01/4.42E-02 675 L-0200, L-0201, and T-0315 are nominal. In light of the MOLA failure, we have reviewed T-0315 (USO temperature) values around the end of June and have found the following. It appears the USO temperature increased slightly just before the MOLA failure, then has been about 2C below its previous value since (presumably because MOLA was turned off). Date T-0315 (Avg, C) ---------- -------- 2001-06-24 23.4 2001-06-25 23.4 2001-06-26 23.8 2001-06-27 24.4 2001-06-28 24.2 2001-06-29 23.6 2001-06-30 23.3 2001-07-01 21.9 2001-07-02 21.5 2001-07-03 21.4 2001-07-04 21.3 Open Loop Data ============== Data Collection --------------- We have transferred the following open loop data to Stanford: YYYY/DDD DSS DSP SAMP BW DSP BIT REC RECS RECS MAX START STOP RATE MODE RESN LEN MSSG SNR -------- --- -------- -------- ---- ---- ---- ---- ---- ----- ---- ----- 2001/194 45 16:31:00 16:43:00 5000 2000 2 12 1666 3601 0 60.7 2001/194 65 18:28:00 18:40:00 5000 2000 2 12 1666 3601 0 59.6 2001/194 65 19:58:00 20:10:00 5000 2000 2 12 1666 3601 0 60.7 2001/194 65 20:26:00 20:38:00 5000 2000 2 12 1666 3601 0 60.1 2001/194 65 21:56:00 22:07:00 5000 2000 2 12 1666 3301 0 61.2 2001/194 65 22:24:00 22:36:00 5000 2000 2 12 1666 3601 0 60.9 2001/194 65 23:54:00 00:05:00 5000 2000 2 12 1666 3301 0 60.5 2001/195 65 00:21:00 00:34:00 5000 2000 2 12 1666 3901 0 60.0 2001/195 34 07:45:00 07:57:00 5000 2000 2 12 1666 3601 0 61.8 2001/195 34 08:12:00 08:25:00 5000 2000 2 12 1666 3901 0 60.4 2001/195 34 09:43:00 09:54:00 5000 2000 2 12 1666 3301 0 62.1 2001/195 34 10:10:00 10:22:00 5000 2000 2 12 1666 3601 0 60.9 2001/195 43 11:40:00 11:52:00 5000 2000 2 12 1666 3601 0 66.3 2001/195 43 12:08:00 12:20:00 5000 2000 2 12 1666 3601 0 65.6 2001/195 43 13:38:00 13:50:00 5000 2000 2 12 1666 3601 0 68.1 Anomalies --------- Occultation 10495e (DSS 45, start time 2001/194-16:31:00) was incorrectly listed as "not found" in HEA1194A.TXT. The query was submitted with the wrong day number; when that was corrected, the data were found. The maximum SNR reported for occultation 10505i (DSS 43, start time 2001/195-13:38:00) is 68.1, the highest value in memory for MGS. Unfortunately, this occultation may have been lost to the HGA rewind. Closed Loop Data ================ Data Collection --------------- We have obtained the following files from OSCAR: Original File Name Name on SOPC -------------------------------- ------------ WEA: WEATHER_10_LATEST.TXT;276 10011901.WEA WEA: WEATHER_40_LATEST.TXT;276 10011904.WEA WEA: WEATHER_60_LATEST.TXT;276 10011906.WEA Ancillary Data ============== Data Collection --------------- We were not able to locate any new files in the FIS today. This is unusual because the file count is usually high after a weekend. We have obtained the following files from NAIF: Original File Name Name on SOPC ------------------------------------ ------------ AGK: mgs_hga_ck_2001-07-04.bc 1185185A.AGK AGK: mgs_hga_ck_2001-07-05.bc 1186186A.AGK AGK: mgs_hga_ck_2001-07-06.bc 1187187A.AGK