SOT shift report 2002-04-01 M984

Shift M984. 
	Start at 091:19:30  GMT
		 = 02:30pm    01 Apr EST
	End	   04:30pm    01 Apr
   
See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Apr_01_2002_M984.txt.

SOT Lead	Mark Freeman
(Times will be given in GMT on day 091.)

PLAN
----
Continue running load Apr0102B. Finish obsid 1664, an ACIS-I
observation of the distant galaxy cluster V 1525+0958, as part of a
systematic determination of H0 and q0 using the Sunyaev Zel'dovich
effect. Then perform ACIS CTI measurements surrounding the perigee
passage.

Radiation situation is quiet - ACE EPAM P3 ~500.  Solar forecast is
for moderate activity, possible low-M-class flares.

Next Comms:
 091:2000 to 2100
 092:0215 to 0315
 092:1215 to 1315
 092:2215 to 2315
 093:0500 to 0600
 093:1345 to 1445
 094:0030 to 0130
 094:0900 to 1000

Orbital events:
2002:092:10:25:07.284 EPERIGEE     366   ORBIT PERIGEE 
2002:093:18:08:33.494 EAPOGEE      367   ORBIT APOGEE
2002:095:01:53:02.677 EPERIGEE     367   ORBIT PERIGEE
2002:096:09:36:13.313 EAPOGEE      368   ORBIT APOGEE 
2002:097:17:20:21.888 EPERIGEE     368   ORBIT PERIGEE

EVENTS						TIME	OBSID
------						-----	-----
Start shift					19:30
AOS (DSS-34)					20:00
Chandra status during comm nominal		20:10	01664
LOS						21:00
End shift					21:15

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

1) Chandra status via snapshot just after AOS:

UTC 2002:091:20:11:38 (Apr 1) f_ACE 4.71e+02 F_CRM 9.23e+08 Kp 3.0 R km 104919D
OBT 2002:091:20:11:12  CTUVCDU  9234815  OBC s/w NRML  FMT2_SSR    CPEstat NORM
OBT      134079072.45  ONLVCDU  9234800  OBC Errs   0
                                                     OBSID   1664  EPState  SUN
SIM TTpos   89823  HETG Angle 79.46  PCADMODE NPNT   RA   231.175  Bus V  29.93
SIM FApos    -535  LETG Angle 77.96  PCONTROL NPNT   Dec    9.998  Bus I  31.02
                                     AOFSTAR  GUID   Roll 107.907
ACA Object FFFSSSSS    Dither  ENAB                                HRC-I HV OFF
ACA ImFunc TTTTTTTT    Dith Yang   7.26    Yaw Rate     -0.03      HRC-S HV  ON
ACA CCD Temp  -10.4    Dith Zang   7.56    Pitch Rate   -0.08      OBSMode NEXT
ACA Int Time  1.698                        Roll Rate     0.14      Door OP UNAC
AOACSTAT         OK    FSS SunBeta  SUN                            Door CL UNAC
                       FSS Alfa   -0.01    Batt 1 SOC  100.00%
Avg HRMA Temp 70.61    FSS Beta  -47.63    Batt 2 SOC  100.00%  ACIS Stat7-0 65
Avg OBA Temp  50.89    SA Resolv 137.34    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   14.88   RadMon     ENAB
HRMA power    96.10    SCS 128   ACT       -Y SA Amps   15.46   EPHIN Geom LARG
OBA power    142.00    SCS 129   ACT       +Y SA Temp  113.89   E150        0.9
                       SCS 130   ACT       -Y SA Temp  114.81   E300        0.1
Roll Mom.   -11.946    SCS 107  INAC                            E1300       0.0
Pitch Mom.    9.543   UpL Cmd Acc  30058   EPH A-Leak  1.0200   P4GM        0.1
Yaw Mom.      9.432   Cmd Rej A       48   EPH B-Leak  0.3280   P41GM       0.0

2) Current Radiation Data:

UTC 2002:091:20:11:38 (Apr 1) f_ACE 4.71e+02 F_CRM 9.23e+08 Kp 3.0 R km 104919D

                    Currently scheduled FPSI, OTG : ACIS-I NONE
                                      Costello Kp : 3.33
        ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 4.71e+02
           GOES-8  P2 flux, in RADMON P4GM  units : 0.00
           GOES-10 P2 flux, in RADMON P4GM  units : 0.00
           GOES-8  P5 flux, in RADMON P41GM units : 0.01
           GOES-10 P5 flux, in RADMON P41GM units : 0.01
                                 Orbit Start Time : 2002:089:19:04:00
              Geocentric Distance (km), Orbit Leg : 105107 D
                                       CRM Region : 2 (Magnetosheath)
           External Proton Flux (p/cm^2-s-sr-MeV) : 1.26794200000e+03
         Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 1.26794200000e+03
  External Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.35424661430e+09
Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 9.23101257750e+08