SOT shift report 2001-05-30 M678
Start at 2001:150:20:00 GMT
       = 2001 May 30 04:00pm EDT
End                  06:00pm EDT


SOT Lead	Mark Freeman
Other		Rob Cameron

Plan
----
Finish CTI CAL-ER, then begin ACIS-NONE observation OBSID 1593, THE NATURE OF 
THE EXTENDED X-RAY EMISSION AROUND THE QUASAR 3C281, at 2001:150:22:57.

Events						GMT	OBSID
------						----	-----
Start shift					2000
AOS (DSS-54)					2100
Chandra status nominal (note 1)			2110	61606
LOS						2200
End shift					2200

NOTES/ISSUES/PROBLEMS
---------------------

(1) Chandra's state was:

UTC 2001:150:21:10:42 (May30) f_ACE 1.63e+02 F_CRM 0.00e+00 Kp 1.3 R km  58484A
OBT 2001:150:21:10:09  CTUVCDU  6737683  OBC s/w NRML  FMT2_SSR    CPEstat NORM
OBT      107644209.77  ONLVCDU  6737672  OBC Errs   0
                                                     OBSID  61606  EPState  SUN
SIM TTpos  -99616  HETG Angle 79.84  PCADMODE NPNT   RA   189.998  Bus V  30.71
SIM FApos    -467  LETG Angle 77.96  PCONTROL NPNT   Dec  -19.001  Bus I  29.75
                                     AOFSTAR  GUID   Roll 256.364
ACA Object SSSSSSSS    Dither  ENAB                                HRC-I HV OFF
ACA ImFunc TTTTTTTT    Dith Yang   4.93    Yaw Rate      0.06      HRC-S HV  ON
ACA CCD Temp  -10.4    Dith Zang   7.45    Pitch Rate   -0.12      OBSMode NEXT
ACA Int Time  1.698                        Roll Rate    -0.07      Door OP UNAC
AOACSTAT         OK    FSS SunBeta  SUN                            Door CL UNAC
                       FSS Alfa   -0.39    Batt 1 SOC  100.00%
Avg HRMA Temp 70.58    FSS Beta  -36.36    Batt 2 SOC  100.00%  ACIS Stat7-0 65
Avg OBA Temp  50.73    SA Resolv 126.47    Batt 3 SOC  100.00%  Cold Rad -125.5
OBA Tavg Fault NFLT    SA Sun Pres ILLM                         Warm Rad  -82.0
OBA Trng Fault NFLT                        +Y SA Amps   14.10   RadMon     DISA
HRMA power    78.40    SCS 128   ACT       -Y SA Amps   15.26   EPHIN Geom LARG
OBA power    102.50    SCS 129   ACT       +Y SA Temp  110.20   E150        6.7
                       SCS 130   ACT       -Y SA Temp  110.51   E300        0.1
Roll Mom.     6.841    SCS 107  INAC                            E1300       0.0
Pitch Mom.    1.955   UpL Cmd Acc  14298   EPH A-Leak  0.4600   P4GM        0.0
Yaw Mom.      4.276   Cmd Rej A      134   EPH B-Leak  0.0880   P41GM       0.0

(2) Radiation environment very quiet:

UTC 2001:150:21:23:30 (May30) f_ACE 1.54e+02 F_CRM 0.00e+00 Kp 1.3 R km  60107A

                    Currently scheduled FPSI, OTG : HRC-S NONE
                                      Costello Kp : 1.33
        ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 1.64e+02
                                 Orbit Start Time : 2001:150:16:09:01
              Geocentric Distance (km), Orbit Leg : 59486 A
                                       CRM Region : 3 (Magnetosphere)
           External Proton Flux (p/cm^2-s-sr-MeV) : 3.65615000000e+03
         Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 0.00000000000e+00
  External Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.74693984000e+08
Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 0.00000000000e+00

(3) Rob is monitoring ASVT testing of new OTG command sequences.  Much 
    difficulty was encountered in sending the command load to the ASVT
    OBC.  Problem was traced to an interface at TRW West.  Changing 
    I/F from "SCD" back to PTP solved the problem - testing began in
    earnest at around 2130 GMT.

See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/May_30_2001_M678.txt