SOT shift report 2004-05-04 L1748 Written at 2004:125:12:54 UTC = 08:54 AM May-04-2004 EDT End 11:00:00 AM EDT SOT Lead: Ed Kellogg PLAN ---- OBSID 05316, LMC X-3 2004:125:09:42, HRC-S LETG - High Resolution Spectroscopy of LMC X-3: Probing Local Hot X-ray Absorbing Gas. RADIATION SUMMARY ----------------- Solar soft proton flux is very low. (http://www.srl.caltech.edu/ACE/ASC/) Significant solar activity: The solar flare activity level was low. A total of 1 C class event was recorded yesterday.(http://www.dxlc.com/solar/) CMEs reported for past two days: May 1-3: No fully or partly Earth directed CME observed.(http://www.dxlc.com/solar/- Jan Alvestad) Radiation Measurement Observed Observed/Limit --------------------- -------- -------------- ACE 2hr fluence 3.54e+05 1/1015.6 (http://www.srl.caltech.edu/ACE/ASC/) GOES-10/P2 4-9 MeV protons `P4GM' 2.58e-02 1/3682 (ftp://ftp2.sec.noaa.gov/pub/lists/pchan/G10pchan_5m.txt) GOES-10/P5 40-80 MeV protons `P41GM' 1.08e-02 1/72 (ftp://ftp2.sec.noaa.gov/pub/lists/pchan/G10pchan_5m.txt) *ACIS* Orbital fluence (since perigee) 1.04E+06 1/962 (http://asc.harvard.edu/mta/alerts/current.dat) EPHIN rates (cts/cm^2-s-sr) at last comm. OBSERVED RADMON limit or observed/limit ---------------------------------------- -------- ----------------------------- E1300 (2.64-6.18 MeV electrons): 0.0 10 P4GM (5-8.3 MeV protons): 0.0 300 P41GM (41-53 MeV protons): 0.0 8.47 (http://cxc.harvard.edu/cgi-gen/mta/Snap/snap.cgi?action=Latest) ACIS focal plane temperature -119.7 C, at dddZhh:mm:ss 125Z11:57:42 (http://asc.harvard.edu/acis/RT/acisrt.html) REAL TIME OBSERVATIONS UTC OBSID ---------------------- --- ----- - Notes from 9 am meeting ------------------------ OPS: Passes 3 over the last 1 day(s) Dump status Current Data loss None Load is good -> 129:15:40 UTC CAPs - Next passes 125/1925-2125 DSS 46 126/0310-0410 DSS 54 MP: The MAY1004 load still needs some comet position adjustments. Products will be out later today for review tomorrow. S/C: Our first momentum unload from the onboard load will occur this Saturday morning at ~8:40 am EDT. We'll be watching in real time. GOT/IST: We had power outages. Also, the A/C in the computer room went out. We had to re-seat some boards in the DDS (Data Distribution Switch). We're still investigating how the UPS handled the transition, whether there were any spikes, and whether the A/C failure was caused by the power transition. We discussed that the DDS is becoming obsolescent, and we may replace its function with the COG (Chandra Operations Gateway). DATA: SOT: MEETINGS -------- Data ---- On colossus (/dsops/GOT/input), - May 4 03:43 2004_124_2051_125_0419_Dump_EM_02140.gz. Evaluation of QL data --------------------- Target: SI SOT Eval. ------------------- ---------- ---------- Cassiopeia A: obs4637_0 ACIS-S OK E0102-72[I3,-120,-4.0,6.5,0]: obs5142_0 ACIS-I OK E0102-72[I3,-120,-4.0,2.5,0]: obs5140_0 ACIS-I OK E0102-72[I3,-120,-4.0,4.5,0]: obs5141_0 ACIS-I OK 3C273-JET: obs4878_0 ACIS-S OK E0102-72[I3,-120,-7,0.5,0]: obs5137_0 ACIS-I OK E0102-72[I3,-120,-4,0.5,0]: obs5138_0 ACIS-I OK Cassiopeia A: obs4634_0 ACIS-S OK Cassiopeia A: obs4635_0 ACIS-S OK M101: obs5322_0 ACIS-S OK Regulus: obs5188_0 ACIS-I nothing obvious --------------------- NOTES/ISSUES/PROBLEMS --------------------- SNAPSHOT -------- UTC 2004:125:12:39:02 (May 4) f_ACE 7.09e+01 F_CRM 2.54e+07 Kp 1.7 R km 125780D OBT 2004:125:11:57:47 CTUVCDU 15059583 OBC s/w NRML FMT1_NORM CPEstat NORM OBT 200059067.15 ONLVCDU 15059568 OBC Errs 0 OBSID 5316 EPState SUN SIM TTpos -99616 HETG Angle 79.46 PCADMODE NPNT RA 84.714 Bus V 29.93 SIM FApos -990 LETG Angle 4.09 PCONTROL NPNT Dec -64.074 Bus I 32.28 AOFSTAR GUID Roll 221.001 ACA Object FFFSSSSS Dither ENAB HRC-I HV OFF ACA ImFunc TTTTTTTT Dith Yang 15.63 Yaw Rate 0.06 HRC-S HV ON ACA CCD Temp -15.6 Dith Zang -6.91 Pitch Rate -0.35 OBSMode OBSV ACA Int Time 1.698 Roll Rate -0.15 Door OP UNAC AOACSTAT OK FSS SunBeta SUN Door CL UNAC FSS Alfa -0.42 Batt 1 SOC 100.00% Avg HRMA Temp 70.58 FSS Beta 3.07 Batt 2 SOC 100.00% ACIS Stat7-0 65 Avg OBA Temp 51.85 SA Resolv 86.77 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 15.85 RadMon ENAB HRMA power 135.40 SCS 128 ACT -Y SA Amps 16.25 EPHIN Geom LARG OBA power 75.50 SCS 129 INAC +Y SA Temp 110.20 E150 0.8 SCS 130 ACT -Y SA Temp 110.82 E300 0.0 Roll Mom. -5.117 SCS 107 INAC E1300 0.0 Pitch Mom. -3.549 UpL Cmd Acc 22061 EPH A-Leak 1.0200 P4GM 0.0 Yaw Mom. 11.377 Cmd Rej A 124 EPH B-Leak 0.6320 P41GM 0.0 EPH temp 83.17 Gyro 1 Curr 1 7.20 Roll Bias -0.6447 M Unload MON Gyro 1 Curr 2 9.60 Pitch Bias -1.9166 CTX B PWR 36.73 TSC Move STOP Gyro 2 Curr 1 103.20 Yaw Bias -0.9783 CTX B Volts 3.54 FA Move STOP Gyro 2 Curr 2 98.40 OTG Move DISA