PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 2001-02-15 NOTE = "MGS RST Instrument Health Report HEA1046A.TXT" END_OBJECT = TEXT END Engineering Data ================ Engineering Data Statistical Summary from CSV2STAT: First SCET: 2001-02-13T00:20:17.524 Last SCET: 2001-02-13T23:59:57.513 CHANNL CHANNEL TITLE DN-LO DN-HI EU-LO EU-HI EU-AVG/STDEV RECDS ------ ------------- ----- ----- --------- --------- ---------/-------- ----- F-0190 HGA_AZ_ANG 6424 12969 1.57E+00 3.17E+00 2.97E+00/9.54E-03 2536 F-0195 HGA_EL_ANG -11233 11089 -2.74E+00 2.71E+00 -9.92E-01/3.31E-02 2536 L-0034 MOT1_RANGING 0 0 5073 L-0036 MOT1_TLM_MOD 0 0 5070 L-0037 MOT1_USO_ENA 0 0 5073 L-0044 MOT2_RANGING 1 1 5073 L-0046 MOT2_TLM_MOD 0 1 5070 L-0047 MOT2_USO_ENA 1 1 5073 L-0053 RF_SW_OSC 2 2 5070 L-0060 TWTA1_FILMNT 0 0 5073 L-0061 TWTA1_HV 0 0 5076 L-0070 TWTA2_FILMNT 0 1 5076 L-0071 TWTA2_HV 0 1 5073 L-0080 USO_PWR 0 0 5073 L-0090 KaBLE_STAT 0 0 5073 L-0091 KaBLE_ENABLE 1 1 5076 L-0111 MOT1_RCV_AGC 255 255 -1.53E+02 -1.53E+02 -1.53E+02/7.59E-07 5073 L-0121 MOT2_RCV_AGC 148 255 -1.53E+02 -1.22E+02 -1.49E+02/1.37E-01 5073 L-0131 TWTA1_HLX_I 0 1 -3.84E-02 -1.85E-02 -3.82E-02/2.21E-05 5073 L-0132 TWTA1_ANOD_V 0 1 -1.00E+03 -1.00E+03 -1.00E+03/1.68E-02 636 L-0141 TWTA2_HLX_I 17 42 2.86E-01 7.85E-01 4.46E-01/2.49E-03 5073 L-0142 TWTA2_ANOD_V 61 229 -8.66E+02 -5.30E+02 -6.18E+02/5.69E+00 636 L-0200 USO_REG_V 203 205 4.06E+00 4.10E+00 4.08E+00/2.31E-04 635 L-0201 USO_OVEN_V 128 130 2.56E+00 2.60E+00 2.59E+00/3.92E-04 635 T-0302 EPC1_T 188 197 -4.65E+00 -7.38E-01 -3.15E+00/3.63E-02 636 T-0303 EPC2_T 182 192 -2.43E+00 1.71E+00 -9.34E-01/4.50E-02 636 T-0310 RF_ISOLTR1_T 229 233 -6.05E+00 -1.15E+00 -3.34E+00/8.86E-03 5070 T-0311 RF_ISOLTR2_T 225 233 -6.05E+00 3.13E+00 -1.90E+00/2.74E-02 5070 T-0312 TWT1_T 228 233 -6.05E+00 -2.48E-02 -2.81E+00/3.90E-02 635 T-0313 TWT2_T 219 234 -7.39E+00 8.56E+00 -1.42E+00/1.75E-01 635 T-0315 USO_T 139 143 2.09E+01 2.20E+01 2.14E+01/7.56E-03 636 T-0316 KA_AMP_T 215 220 7.73E+00 1.16E+01 9.75E+00/2.42E-02 632 L-0200, L-0201, and T-0315 are nominal. 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 -------- --- -------- -------- ---- ---- ---- ---- ---- ----- ---- ----- 2001/045 34 17:50:20 17:56:00 5000 2000 2 12 1666 1701 0 50.7 2001/046 65 03:38:00 03:45:00 5000 2000 2 12 1666 2101 0 50.5 2001/046 65 05:36:00 05:42:00 5000 2000 2 12 1666 1801 0 51.3 2001/046 65 07:33:00 07:40:00 5000 2000 2 12 1666 2101 0 52.0 2001/046 65 09:31:00 09:38:00 5000 2000 2 12 1666 2101 0 50.7 2001/046 15 11:29:00 11:35:00 5000 2000 2 12 1666 1801 0 51.9 2001/046 15 13:26:00 13:33:00 5000 2000 2 12 1666 2101 0 51.8 2001/046 15 15:24:00 15:31:00 5000 2000 2 12 1666 2101 0 51.9 Anomalies --------- Data from occultation 8672i (DSS 34, start time 2001/045-15:51:00) were lost when receiver tuning predicts did not load. Data from occultation 8673i (DSS 34, start time 2001/045-17:50:20) were delayed by 80 s to skip over late attenuator adjustments. Aseel Anabtawi advises that attenuator settings at SPC 40 have been unpredictable lately and that adjustments are often required at the beginning of each pass. Sal Abbate will investigate after he returns from supporting NEAR Eros touchdown activities at Goldstone. Analyses -------- We have used our surface reflection analysis software to determine ingress time of occultation 8673i. This was the last based on SOE mm113b.06.tsoe (1042046E.SOE) and possibly the one most susceptible to orbit timing errors. Our measured occultation time is 2001/045-17:54:16.723. This compares very favorably with the SOE predicted occultation time of 17:54:16.089; agreement to within a few seconds is usually considered acceptable given variations resulting from limb topography and other sources. The occultation includes a very nice diffraction signature, a short post-occultation "tail", and good surface echoes. Use of the surface reflection software on occultation data from days 035-037 shows no evidence for early telemetry reconfiguration on the first two days. But data on 037 from occultations 8570i and 8571i are corrupted. Curiously, data from 8572i and 8573i do not seem to be affected. All occultations between 8574i and 8587i were previously reported as bad (see HEA1038A.TXT and HEA1039A.TXT). Joe Twicken reports similar findings for days 035-038 when he uses the intermediate level occultation processing software on these data, except that he is apparently less sensitive to corruption that occurs very close to ingress. Joe also notes that, even though the carrier amplitude decreases by 14 dB when telemetry is turned on, the frequency of the signal is not affected. We see "splatter" when telemetry is turned on, but are unable to detect any frequency change at the +/-2 Hz level. Closed Loop Data ================ Data Collection --------------- We have obtained the following files from OSCAR and EPIC: Original File Name Name on SOPC -------------------------------- ------------ ODF: 01044O045_10S.SJO;1 1044045A.ODF Analysis -------- Sami Asmar has forwarded the following summary of MGS SRA (ranging) biases and errors determined by Eric Graat at JPL. RU is Range Units. OD Fit Data Arc Orbits+ (ERT UTC) DSS Used Total Bias(RU) Sigma (RU) --------- --------------- --- ---- ----- -------- ---------- 8500-8520 032 03:40-04:10 65 4 10 -82941.0 9.88 8500-8520 032 05:10-06:10 65 6 8 -2588.5 10.10 8500-8520 032 07:05-08:05 65 7 8 -12656.9 7.94 8500-8520 032 09:05-10:05 65 8 10 1033.5 5.91 8500-8520 032 22:50-23:50 45 5 10 -70846.7 3.33 8500-8520 033 00:45-01:45 45 8 10 1027.2 7.60 8521-8540 034 04:15-05:15 65 7 10 43126.5 6.88 8521-8540 034 06:15-07:15 65 7 9 1284.2 7.91 8521-8540 034 08:15-09:15 65 5 10 -80145.8 6.09 8521-8540 034 19:55-20:55 45 10 10 -13510.9 42143.90 * 8541-8561 034 21:55-22:55 45 22 22 -31460.0 51573.60 * 8541-8561 035 15:35-16:35 45 7 8 -11184.6 18.55 8541-8561 035 17:30-18:30 45 4 6 1023.6 5.13 8541-8561 035 19:30-20:30 45 5 11 1029.2 3.86 8541-8561 035 21:25-22:25 45 23 23 -6513.1 45580.10 * 8541-8561 035 23:25-00:25 45 6 23 1027.1 21.95 8541-8561 036 11:10-12:10 15 5 9 -62663.0 5.70 8541-8561 036 13:07-14:07 15 6 9 1018.6 4.63 8562-8584 036 19:00-20:00 45 7 9 -12513.2 5.29 8562-8584 037 15:10-15:40 45 10 10 -18845.4 52058.10 * 8562-8584 037 16:35-17:35 45 6 13 -85302.1 5.64 8562-8584 037 18:35-19:35 45 6 10 -39355.3 8.49 8585-8605 039 03:55-04:55 65 6 10 1240.9 3.73 8585-8605 039 07:50-08:50 65 6 13 -22998.3 7.23 8585-8605 039 15:40-16:40 45 4 10 72626.8 4.76 8585-8605 040 03:30-04:30 65 6 9 -45707.2 4.60 8625-8645 042 06:30-07:30 65 8 10 1005.8 5.20 8625-8645 042 16:15-17:15 15 8 9 1008.2 10.91 8625-8645 043 04:05-05:05 65 7 8 8582.5 6.32 8625-8645 043 06:00-07:00 65 7 9 12175.5 4.63 + All orbits used to evaluate the SRA data were reconstructed from F1, F2 and F3 Doppler tracking data. A range correction was applied to account for the spacecraft delay. * All SRA data collected were outliers (blunder points). Ancillary Data ============== Data Collection --------------- We have obtained the following files from the FIS: Original File Name Name on SOPC -------------------------------- ------------ AMD: amdgen.01-046.out 1044045A.AMD OPT: optg_m_010215_OD8683-8685_8964_V1 1046069A.OPT SAK: mgs_solar_array_2001-044.ck 1044044A.SAK SOE: mm116a.03.tsoe 1053056B.SOE SOE: mm117a.03.tsoe 1056060B.SOE SPK: spk_m_010215_OD8683-8685_8964_V1 1046069A.SPK TCK: mgs_spice_c_kernel_2001-044.ck 1044044A.TCK We have obtained the following files from NAIF: Original File Name Name on SOPC -------------------------------- ------------ AGK: mgs_hga_ck_2001-02-05.bc 1036036A.AGK MOLA POD Team Orbit Solutions ============================= Data Collection --------------- We have obtained the following files from GEODESY: Original File Name Name on SOPC -------------------------------- ------------ GDN: gdn_ql18_101241650_101310630.tsp 1024031A.GDN