SOT shift report 2000-08-15 M390
Start at 2000:228:20:00 GMT
       = 2000 Aug. 15 04:00pm EDT
End                   06:00pm EDT

See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Aug_15_2000_M390.txt

SOT Lead	Mark Freeman

Plan: Continuing 40 ks observation of a Soft Gamma Repeater, SGR 1806-20
      (OBSID 00746), using ACIS-S with no grating.


EVENTS						GMT		OBSID
--------------					----		-----
Start shift					228:2000
AOS (DSS-24), 3 fids, 5 stars			228:2100	00746
Chandra state normal (note 2)
End shift					228:2200

NOTES/ISSUES/PROBLEMS
--------------------- 
1) Radiation levels low.  Radiation data:

ACE 2 hr fluence is 1.74e+03 vs. threshold 3.6e8. 
Orbital fluence (R>70km)is 3.54e+07 vs. threshold 1.0e9.
Kp index = 1.7

2) Chandra's state was:

UTC 2000:228:21:16:01 (Aug15) f_ACE 1.74e+03 F_ACE 3.54e+07 Kp 1.7 R km  97088A
OBT 2000:228:21:15:42  CTUVCDU 10297215  OBC s/w NRML  FMT2_EPS    CPEstat 
OBT       82761342.27  ONLVCDU 10297200  OBC Errs   0
                                                     OBSID    746  EPState  SUN
SIM TTpos   75623  HETG Angle  80.2  PCADMODE NPNT   RA   272.151  Bus V  30.71
SIM FApos    -467  LETG Angle  78.3  PCONTROL NPNT   Dec  -20.397  Bus I  29.00
                                     AOFSTAR  GUID   Roll 268.448
ACA Object FFFSSSSS    Dither  ENAB                                HRC-I HV  ON
ACA ImFunc TTTTTTTT    Dith Yang   0.03    Yaw Rate     -0.04      HRC-S HV OFF
ACA CCD Temp  -10.4    Dith Zang   2.82    Pitch Rate   -0.05      OBSMode NEXT
ACA Int Time  1.698                        Roll Rate     0.11      Door OP UNAC
AOACSTAT         OK    FSS SunBeta  SUN                            Door CL UNAC
                       FSS Alfa   -0.34    Batt 1 SOC  100.00%
Avg HRMA Temp 70.58    FSS Beta  -38.95    Batt 2 SOC  100.00%  ACIS Stat7-0 65
Avg OBA Temp  50.81    SA Resolv 128.96    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   13.91
HRMA power    42.60    SCS 128             -Y SA Amps   14.88   EPHIN Geom LARG
OBA power     74.60    SCS 129             +Y SA Temp  111.12   E150       10.5
                       SCS 130             -Y SA Temp  111.74   E300        0.1
Roll Mom.    -3.662                                             E1300       0.0
Pitch Mom.   15.655   UpL Cmd Acc  44244   EPH A-Leak  0.6560   P4GM        0.3
Yaw Mom.      8.709   Cmd Rej A      150   EPH B-Leak  0.1160   P41GM       0.0