Jun_16_2000_L329.txt Shift L329 Start at 2000:168:11:30:00 GMT = 2000 Jun 16 7:30am EDT End 2000 Jun 16 12:00pm EDT See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or /proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Jun_16_2000_L329.txt SOT Lead Bill Podgorski SOT SC/ACA FOT-SI HRC-SI ACIS-SI OTHER Plan: - Running JUN1100E. Observing the CIRCINUS GALAXY with ACIS-S/HETG (obsid 374/62877). This is a long observation which will continue until 168:1745 (this afternoon). No COMM pass this shift. Note the OBSID split for this observation (see note 3). ORBITAL EVENTS: 2000:163:15:09:34.298 117 EAPOGEE ORBIT APOGEE 2000:164:22:53:08.029 117 EPERIGEE ORBIT PERIGEE 2000:166:06:37:17.979 118 EAPOGEE ORBIT APOGEE 2000:167:14:20:44.447 118 EPERIGEE ORBIT PERIGEE 2000:168:22:05:11.980 119 EAPOGEE ORBIT APOGEE 2000:170:05:49:27.825 119 EPERIGEE ORBIT PERIGEE EVENTS DONE OBSID -------------- ---- ----- Start Shift LOS 168:1130 Status at last contact 168:1050 was nominal (see note 1) ACE radiation levels: 2 hr flux avg: 650.917 2 hr FLUENCE: 4.6E+6 Kp (Costello) 1.33 End of shift 167:1800 NOTES/ISSUES/PROBLEMS --------------------- 1) Status at last contact: UTC 2000:168:10:51:01 (Jun16) f_ACE 3.82e+02 F_ACE 6.59e+06 Kp 3.0 R km 131354A OBT 2000:168:10:50:11 CTUVCDU 6697727 OBC s/w NRML FMT2_NORM CPEstat OBT 77539811.78 ONLVCDU 6697712 OBC Errs 0 OBSID 62877 EPState SUN SIM TTpos 75623 HETG Angle 6.3 PCADMODE NPNT RA 213.244 Bus V 31.02 SIM FApos -467 LETG Angle 78.3 PCONTROL NPNT Dec -65.330 Bus I 30.26 AOFSTAR GUID Roll 296.363 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 7.73 Yaw Rate 0.07 HRC-S HV ON ACA CCD Temp -10.4 Dith Zang -5.44 Pitch Rate -0.09 OBSMode NEXT ACA Int Time 1.698 Roll Rate -0.13 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.94 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta -36.88 Batt 2 SOC 100.00% ACIS Stat7-0 64 Avg OBA Temp 50.89 SA Resolv 126.98 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 14.49 HRMA power 144.60 SCS 128 -Y SA Amps 15.46 EPHIN Geom LARG OBA power 86.40 SCS 129 +Y SA Temp 109.58 E150 149 SCS 130 -Y SA Temp 109.89 E300 26 Roll Mom. -3.161 E1300 3 Pitch Mom. 12.448 UpL Cmd Acc 11490 EPH A-Leak 0.4280 P4GM 1 Yaw Mom. 8.362 Cmd Rej A 155 EPH B-Leak 0.0680 P41GM 0 Expected RA, Dec, Roll (degrees): 213.23830, -65.32869, 296.35829 2) Notes from 9:00am meeting: Operations (Darrell): - 4 supports last 24 hrs, 4 SSR dumps, all OK - Ran CAP 618 (ACIS squeegy mode test VI) - Ran CAP 620, HETG "mini-insertion" Mission Planning (Ken/Kevin): - JUN18 final load review held. Took out grating retraction commands. - Got extra COMM for HETG retract on Monday at around 10:00pm EDT. - Looking for a decision on grating moves for future loads. This will be discussed later today. Spacecraft Engineering (Andy): - HETG mini-insertion performed successfully last night. SOT (Bill Podgorski): - Radiation levels low. - Discussed reason for MCE design (does not shut off motor when lockout is DISABLED). DSOPS(Joy): - Several quick looks. 3) Re: OBSID 374 and 62877 (CIRCINUS GALAXY) As noted in Rob's shift report last night: Start observation: 167:2158 Start real time activities: 168:0017 (Change OBSID to 62877) Complete real time activities: 168:0043 Complete observation: 168:1745 The observation processing should be split into two segments: OBSID 374: 167:2158-->168:0017 and OBSID 62877: 168:0043-->168:1745 In the first segment the HETG may not have been fully inserted, but the insertion error was small (between 0.0 deg and 0.08 deg), so the data MAY be slightly degraded. In the second segment the HETG was inserted to its normal position (after real-time CAP last night). The data in segment 1 MAY be perfectly fine or MAY be slightly degraded due to small insertion misalignment. I say MAY since we DO NOT KNOW what the actual grating insertion angle is due to the low pot resolution. I suggest that data from Segment 1 be processed and evaluated, then compared to the data in Segment 2. This will give us valuable information on grating insertion effects and, if the quality is acceptable, it can be added to the data in Segment 2 to comprise a complete observation of nearly the requested duration.