SOT shift report 2001-12-11 M873
Start at 2001:345:20:45 GMT
       = 2001 Dec 11 03:45 pm EST
End                  06:15 pm EST

SOT Lead	Mark Freeman

PLAN
---- 

Continue OBSID 2816, THE DYNAMICAL PULSAR-WIND NEBULA IN THE
VELA SNR using ACIS-S/NONE, then at 345:23:48 begin the pre-
radzone entry CTI CAL-ER 61387.


There was an X2.8 class solar flare at 0805GMT today which 
triggered a radio blackout across much of Europe and Asia,
but it is still unclear at this writing whether or not there is
an associated Earth-directed CME.  GOES and ACE proton rates
remain low.  Chandra exposure this orbit is low (note 2).


Real Time Events (Day 345)			GMT	OBSID
-----------------------------------------------------------------
Start shift					2045
AOS (DSS-27)					2100
Poor telemetry (note 3)				2100-40
Status of spacecraft nominal (note 1)		2142	02186
LOS						2300
End shift					2315


NOTES/ISSUES/PROBLEMS
---------------------
(1) Chandra status via snapshot:
UTC 2001:345:21:42:31 (Dec11) f_ACE 2.55e+01 F_CRM 2.13e+08 Kp 2.3 R km  93001D
OBT 2001:345:21:42:08  CTUVCDU  5384636  OBC s/w NRML  FMT2_SSR    CPEstat NORM
OBT      124494128.15  ONLVCDU  5384624  OBC Errs   0
                                                     OBSID   2816  EPState  SUN
SIM TTpos   75624  HETG Angle 79.46  PCADMODE NPNT   RA   128.861  Bus V  29.61
SIM FApos    -467  LETG Angle 77.96  PCONTROL NPNT   Dec  -45.185  Bus I  33.04
                                     AOFSTAR  GUID   Roll  45.421
ACA Object FFFSSSSS    Dither  ENAB                                HRC-I HV  ON
ACA ImFunc TTTTTTTT    Dith Yang   2.63    Yaw Rate      0.06      HRC-S HV OFF
ACA CCD Temp  -10.4    Dith Zang   7.59    Pitch Rate   -0.13      OBSMode NEXT
ACA Int Time  1.698                        Roll Rate    -0.08      Door OP UNAC
AOACSTAT         OK    FSS SunBeta  SUN                            Door CL UNAC
                       FSS Alfa   -0.47    Batt 1 SOC  100.00%
Avg HRMA Temp 70.61    FSS Beta   -8.34    Batt 2 SOC  100.00%  ACIS Stat7-0 64
Avg OBA Temp  51.05    SA Resolv  98.18    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   15.26   RadMon     ENAB
HRMA power    41.70    SCS 128   ACT       -Y SA Amps   16.05   EPHIN Geom LARG
OBA power    140.00    SCS 129   ACT       +Y SA Temp  116.95   E150       10.9
                       SCS 130   ACT       -Y SA Temp  116.95   E300        0.2
Roll Mom.   -17.319    SCS 107  INAC                            E1300       0.0
Pitch Mom.   -9.252   UpL Cmd Acc  45688   EPH A-Leak  1.0200   P4GM        0.5
Yaw Mom.     -0.624   Cmd Rej A       35   EPH B-Leak  0.4840   P41GM       0.0

(2) Radiation state and environment:
UTC 2001:345:21:42:31 (Dec11) f_ACE 2.55e+01 F_CRM 2.13e+08 Kp 2.3 R km  93001D

                    Currently scheduled FPSI, OTG : ACIS-S NONE
                                      Costello Kp : 2.00
        ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 2.55e+01
                                 Orbit Start Time : 2001:343:17:24:00
              Geocentric Distance (km), Orbit Leg : 93322 D
                                       CRM Region : 2 (Magnetosheath)
           External Proton Flux (p/cm^2-s-sr-MeV) : 3.70581000000e+03
         Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 3.70581000000e+03
  External Proton Orbital Fluence (p/cm^2-sr-MeV) : 2.70754111800e+08
Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 2.12762806800e+08

(3) Telemetry very ragged to start, and continued questionable
    throughout contact, so dump may need to be redone next contact.

**************************************************************************
See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Dec_11_2001_M873.txt