Jul_24_2001_L733.txt Shift L733 Start at 2001:205:11:30:00 GMT = 2001 Jul 24 7:30am EDT End 2001 Jul 24 11:00am EDT SOT shift report 2001-07-24 L733 See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Jul_24_2001_L733.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running JUL2301C on descending leg. Observing 'M32' (obsid 2017) with with ACIS-S. Current ACE solar proton flux levels are low (under 100). Kp is 2.6. Note: LETG Insert today at 2018 GMT Seq # ObsID It Target start time SI Grat RA dec roll slew ---------------------------------------------------------------------------------------------------------- 600151 02017 00 M32 2001:205:05:28:05.000 51.6 ACIS-S NONE 10.6936 40.8704 121.82 29.60 ---- T_E71 00 CAL-ER 2001:205:20:23:52.286 7.8 -- -- 350.0000 20.0000 128.75 27.57 ---- IGG71 00 CAL-ER 2001:205:23:21:39.826 0.0 -- -- 240.0000 -10.6500 253.23 143.07 ---- GG_71 00 CAL-ER 2001:205:23:46:07.111 3.6 -- -- 280.0000 -16.0000 257.31 39.60 ---- TX72A 00 CAL-ER 2001:206:06:42:21.115 0.1 -- -- 200.0000 20.0000 255.59 86.54 ---- T_X72 00 CAL-ER 2001:206:09:12:21.115 11.8 -- -- 200.0000 20.0000 255.64 0.06 290082 01001 00 HZ43 2001:206:12:43:54.397 5.1 HRC-I LETG 199.0785 29.1209 259.53 9.80 290086 01005 00 HZ43 2001:206:14:17:24.397 15.3 HRC-I LETG 199.0438 28.9570 259.52 0.17 700241 01625 00 3C348 (HERCULES A) 2001:206:19:00:24.397 15.3 ACIS-S NONE 252.7765 5.0122 242.85 56.09 ORBITAL EVENTS: 2001:204:21:17:33.382 271 EAPOGEE ORBIT APOGEE 2001:206:05:02:21.976 271 EPERIGEE ORBIT PERIGEE 2001:207:12:45:36.613 272 EAPOGEE ORBIT APOGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift 205:1130 AOS DSS-46 (Canberra 26m) 205:1130 Status at AOS was nominal (see note 1) 205:1146 2017 Note: ACIS GSE not updating, Paul called Partially fixed ACIS EGSE 205:1230 Finish CAP 700 205:1315 (approx) LOS DSS-46 205:1330 End of shift 205:1500 NOTES/ISSUES/PROBLEMS --------------------- 1) Status at AOS: UTC 2001:205:11:47:06 (Jul24) f_ACE 7.55e+01 F_CRM 9.37e+08 Kp 2.7 R km 118485D OBT 2001:205:11:46:32 CTUVCDU 8372991 OBC s/w NRML FMT2_EPS CPEstat OBT 112362392.27 ONLVCDU 8372976 OBC Errs 0 OBSID 2017 EPState SUN SIM TTpos 75624 HETG Angle 79.84 PCADMODE NPNT RA 10.695 Bus V 30.87 SIM FApos -467 LETG Angle 77.96 PCONTROL NPNT Dec 40.870 Bus I 29.50 AOFSTAR GUID Roll 121.818 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang -3.89 Yaw Rate -0.25 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang 1.99 Pitch Rate -0.21 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.30 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -2.21 Batt 1 SOC 100.00% Avg HRMA Temp 70.61 FSS Beta -3.65 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 51.05 SA Resolv 93.30 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 14.10 RadMon ENAB HRMA power 32.70 SCS 128 ACT -Y SA Amps 14.88 EPHIN Geom BAD OBA power 86.80 SCS 129 ACT +Y SA Temp 108.44 E150 21.0 SCS 130 ACT -Y SA Temp 108.44 E300 15.0 Roll Mom. 1.468 SCS 107 INAC E1300 4.0 Pitch Mom. -12.939 UpL Cmd Acc 33529 EPH A-Leak 1.0200 P4GM 0.0 Yaw Mom. -0.852 Cmd Rej A 195 EPH B-Leak 0.2040 P41GM 0.0 Current Data: UTC 2001:205:11:47:06 (Jul24) f_ACE 7.55e+01 F_CRM 9.37e+08 Kp 2.7 R km 118485D Currently scheduled FPSI, OTG : ACIS-S NONE Costello Kp : 2.67 ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 7.55e+01 Orbit Start Time : 2001:203:13:39:01 Geocentric Distance (km), Orbit Leg : 118635 D CRM Region : 3 (Magnetosphere) External Proton Flux (p/cm^2-s-sr-MeV) : 4.73389000000e+03 Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 4.73389000000e+03 External Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.98090417840e+09 Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 9.36907868400e+08 HRC SP PS = ON Steps 43/54 IM PS = OFF Shield 1 HV = OFF Shield 2 HV = OFF Valid Event Rate 1 = 0 Valid Event Rate 2 = 0 Shield Event Rates = 0 ACIS FP Temp = -119.7 DEA Pwr = 52.2 DPA Pwr = 40.2 Science State = Science Active 2) Notes from 9:00am meeting: Operations (Darrel): - 2 supports last 24 hrs, 134m, 126m - No problems - No loads uplinked, still good thru 208:1000 - CAP 700 completed, SSR-B turned odd - Dumps current, data thru 205:0043 on ground Mission Planning (Kevin/Ken/Dan): - Concerns about DSN coverage this week due to GOES activation. Some passes had been deleted. Ken obtained more coverage (2 DSS-66 passes) Also, LETG RETR coverage had been deleted and Ken got this restored by talking to GOES project. COMM still somewhat at risk due to GOES. - E-mail load review of JUL30 held, new products out for load review today at 2pm. S/C Engineering(Jeff/Eric): - All OK on S/C - ASVT test of NSM recovery on ASVT was completed, went well - ASVT tests of Bright star hold and new momentum dead zone to be done Wed/Thurs. SOT(Bill): - Radiation is low. - LETG insert today at 2018 - Mtg on ACIS moon observations after 9 oclock, see below. DSOPS(Joy): - Several more quick looks (see below) - Were able to use the 4.5 mins of real time data along with dump data, so its OK to turn SSR-B off. GOT(Adam/Pete): - OS2 is down, SGI to fix today - Attitude (control room PC) connection to net fixed Meetings/events: - 915am, ACIS moon obs mtg - 12pm, Tony Lavoie telecon - 2pm, Load review - 3pm, ACIS moon observation telecon 3) Quick look data: Seq # ObsID It Target start time SI Grat Comment ---------------------------------------------------------------------------------------------------------- 900116 02289 00 GCS 29 2001:202:08:08:52.254 12.0 ACIS-I NONE 590163 01554 00 G21.5-09, S3, AO2B 2001:202:18:47:55.258 9.4 ACIS-S NONE 700334 02144 00 1749+279 2001:202:21:52:35.258 9.5 ACIS-S NONE 700321 02131 00 0405-123 2001:203:01:40:03.477 9.7 ACIS-S NONE 4) Meeting on ACIS moon observation Two concerns were raised yesterday regarding observations of moon scheduled for tomorrow: - Although the observation has been analyzed and deemed safe by ACIS team, it would be desirable to develop a contingency plan to prevent the moon from falling on the ACIS-I filter, in the unlikely event that there is a problem with the ACIS-I filter. Three options were discussed; going to NSM, maneuvering to an safe attitude in NPNT and running SCS 107 (not preferred, since 107 allows a short transient time with the moon on the ACIS-S filter). The FOT will examine these options and report back at a 3pm telecon. In addition, the FOT will try to obtain extra COMM prior to the first moon observation. - The second and third ACIS observations will compute bias while Chandra is pointed at the Moon. This is not what was intended and could potentially make the observations useless. This can be simply correcting by uplinking one ACIS parameter block after the first observation has started. Paul will prepare a CAP to do this.