ACIS Shift report H322 June 9 0030, GMT 161:04:30:00, EDT June 9, 2000 00:30 PLAN: Execute CAP 616 to run a normal ACIS-S CTI measurement. The OC/CC will uplink the JUN0800 intercept load. The OC/CC will dump the SSR. The OC/CC will re-enable SCS107 and RADMON. SUMMARY: This was our second attempt today to start the CTI measurement after this large solar event. At the earlier pass (160:20:45), the EPHIN P4 rate was fluctuating between 1600-1850 cts/sample. I decided that was too high to start the CTI measurement. At the beginning of this pass, the EPHIN P4 rate was 667 cts/sample. ACE rates have shown a slow, steady decline from 80,000 to 50,000 particles/cm2-s-ster-MeV. 1) Detailed Timeline: GMT 161:04:10 AOS at DS 24 161:04:12 FP Temp = -119.9 C 161:04:15 SSR Dump started 161:04:33 E150 742 E300 104 E1300 1 P4GM 640 P41GM 0 161:04:36 JUN0800 load on the spacecraft 161:04:38 RADMON enabled 161:04:40 SCS 107 enabled 161:04:41 start uplinking loads for CAP 616 161:04:45 SSR Dump complete, good dump 161:04:50 Change OBSID to 62882 161:04:51 first ACIS commans WSVIDALLDN 161:04:56 startScience 161:05:00 E150 670 E300 100 E1300 1 P4GM 602 P41GM 0 161:05:08:30 first bias packets 161:05:19:50 last bias packets 161:05:25 delta overclocks range from -9 to -27 thresholds crossings range from 8,000-10,000 for FIs about 1,000 cor BIs S3 rate = 76 c/s S2 rate = 87 c/s Run looks normal, we should get about 23 ks of data, that's a LOOOOOOONNNNNGGG CTI measurement 161:05:30 E150 682 E300 96 E1300 3 P4GM 700 P41GM 0 161:05:45 LOS 2) Radiation environment EPHIN rates reported above. ACE 130-214 keV rate is slowly decreasing, currently at 50,000 particles/cm2-s-ster-MeV. 3) Chandra state at the beginning of pass: UTC 2000:161:04:32:01 (Jun 9) f_ACE 4.97e+04 F_ACE 1.05e+10 Kp 4.3 R km 141695D OBT 2000:161:04:31:27 CTUVCDU 4248850 OBC s/w NRML FMT2_EPS CPEstat OBT 76912287.58 ONLVCDU 4248840 OBC Errs 0 OBSID 433 EPState SUN SIM TTpos -99615 HETG Angle 6.3 PCADMODE NPNT RA 203.953 Bus V 31.02 SIM FApos -467 LETG Angle 78.3 PCONTROL NPNT Dec -34.280 Bus I 26.97 AOFSTAR GUID Roll 269.422 ACA Object SSSSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc NNNTTTTT Dith Yang -7.89 Yaw Rate -0.14 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang 5.96 Pitch Rate -0.24 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.13 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.92 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -42.33 Batt 2 SOC 100.00% ACIS Stat7-0 66 Avg OBA Temp 50.81 SA Resolv 132.94 Batt 3 SOC 100.00% Cold Rad -127.9 OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -82.0 OBA Trng Fault NFLT +Y SA Amps 12.76 HRMA power 55.90 SCS 128 -Y SA Amps 13.72 EPHIN Geom LARG OBA power 133.30 SCS 129 +Y SA Temp 110.20 E150 720 SCS 130 -Y SA Temp 111.12 E300 90 Roll Mom. -3.005 E1300 6 Pitch Mom. -6.226 UpL Cmd Acc 62349 EPH A-Leak 0.3120 P4GM 646 Yaw Mom. 5.980 Cmd Rej A 245 EPH B-Leak 0.0520 P41GM 0 4) Chandra state at the end of pass: UTC 2000:161:05:29:01 (Jun 9) f_ACE 4.34e+04 F_ACE 1.06e+10 Kp 4.3 R km 140702D OBT 2000:161:05:28:37 CTUVCDU 4262238 OBC s/w NRML FMT2_EPS CPEstat OBT 76915717.74 ONLVCDU 4262224 OBC Errs 1 OBSID 62882 EPState SUN SIM TTpos -99615 HETG Angle 6.3 PCADMODE NPNT RA 203.955 Bus V 31.02 SIM FApos -467 LETG Angle 78.3 PCONTROL NPNT Dec -34.284 Bus I 30.26 AOFSTAR GUID Roll 269.423 ACA Object SSSSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc NNNTTTTT Dith Yang 7.77 Yaw Rate -0.01 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang -0.56 Pitch Rate 0.21 OBSMode NEXT ACA Int Time 1.698 Roll Rate 0.09 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.95 Batt 1 SOC 100.00% Avg HRMA Temp 70.63 FSS Beta -42.30 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 50.81 SA Resolv 132.94 Batt 3 SOC 100.00% Cold Rad -127.9 OBA Tavg Fault NFLT SA Sun Pres ILLM Warm Rad -82.0 OBA Trng Fault NFLT +Y SA Amps 14.30 HRMA power 58.30 SCS 128 -Y SA Amps 15.26 EPHIN Geom LARG OBA power 94.40 SCS 129 +Y SA Temp 109.58 E150 682 SCS 130 -Y SA Temp 110.20 E300 96 Roll Mom. -2.850 E1300 3 Pitch Mom. -6.801 UpL Cmd Acc 64682 EPH A-Leak 0.3080 P4GM 700 Yaw Mom. 5.791 Cmd Rej A 35 EPH B-Leak 0.0520 P41GM 0 ACIS: Paul Plucinsky