SOT shift report 2000-12-01 M498
Start at 2000:336:19:30 GMT
       = 2000 Dec. 01 02:30pm EST
End                   04:15pm EST

See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Dec_01_2000_M498.txt

SOT Lead	Mark Freeman

Plan: 
---- 
Doing ACIS CAL-ERs.  

REAL TIME EVENTS				GMT	OBSID
----------------				----	-----
Start Shift				    336:1930
AOS, DSS-34 Canberra				2000
Chandra State nominal (see note	1)		2015    61834
 0 fids, 6 stars
Brief loss of telemetry stream	(see note 2)	2020
LOS						2058
End shift					2115

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

1) Chandra's state was:

UTC 2000:336:20:21:01 (Dec 1) f_ACE 9.51e+02 F_ACE 0.00e+00 Kp 2.0 R km  19276A
OBT 2000:336:20:20:07  CTUVCDU 13144207  OBC s/w NRML  FMT2_SSR    CPEstat NORM
OBT       92089207.26  ONLVCDU 13144192  OBC Errs   0
                                                     OBSID  61834  EPState  SUN
SIM TTpos  -99616  HETG Angle 79.84  PCADMODE NPNT   RA   238.918  Bus V  29.93
SIM FApos    -467  LETG Angle 78.34  PCONTROL NPNT   Dec   73.000  Bus I  30.01
                                     AOFSTAR  GUID   Roll   8.343
ACA Object SSSSSSSS    Dither  ENAB                                HRC-I HV OFF
ACA ImFunc TTTTTTNN    Dith Yang   7.89    Yaw Rate     -0.22      HRC-S HV  ON
ACA CCD Temp  -10.4    Dith Zang   3.55    Pitch Rate    0.30      OBSMode NEXT
ACA Int Time  1.698                        Roll Rate    -0.32      Door OP UNAC
AOACSTAT         OK    FSS SunBeta  SUN                            Door CL UNAC
                       FSS Alfa    0.08    Batt 1 SOC  100.00%
Avg HRMA Temp 70.58    FSS Beta   -5.44    Batt 2 SOC  100.00%  ACIS Stat7-0 67
Avg OBA Temp  51.05    SA Resolv  95.21    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   14.30   RADMON     DISA
HRMA power   100.30    SCS 128   ACT       -Y SA Amps   15.26   EPHIN Geom SMAL
OBA power    131.90    SCS 129   ACT       +Y SA Temp  118.41   E150  1539122.0
                       SCS 130   ACT       -Y SA Temp  118.05   E300    63108.0
Roll Mom.    -4.638                                             E1300     554.9
Pitch Mom.    5.613   UpL Cmd Acc   9095   EPH A-Leak  1.0200   P4GM    63826.6
Yaw Mom.     -0.090   Cmd Rej A      233   EPH B-Leak  0.2240   P41GM       1.0

2) Lost telemetry briefly at ~336:2020.  Canberra reported no loss of
   downlink and solid lock.  Suspected loss in DSN chain somewhere.
   JPL COMM reported a hit on their SFG (Special Function Gateway)
   which caused it to reset.  Telem lost for about 1 minute.

3) Radiation Environment:

   External radiation environment is low (ACE 2 hr fluence is 6.8e6 vs.
   threshold 3.6e8).  Chandra is currently in magnetosphere ascending after
   perigee, so instruments are safed.