Feb_07_2000_M199.txt Shift M199
Start at 2000:038:21:00 GMT
       = 2000 Feb 07 4:00pm EST
End      2000 Feb 07 6:00pm EST

   
See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Feb_07_2000_M199.txt


SOT Lead	Robert Cameron
SOT SC/ACA	
FOT-SI		
HRC-SI          
ACIS-SI	        
OTHER           

Plan: - Running FEB0600b load, OBSID 00766, 
SN1999em 2000:038:11:39:46.5  40.0 ACIS-S NONE. 

Next observation is OBSID 00342           
NGC 526A 2000:038:23:19:13.2   9.0 ACIS-S NONE 

2000:038:00:37:21.953 PERIGEE
2000:039:08:20:23.507 APOGEE
2000:040:16:04:17.407 PERIGEE
2000:041:23:48:07.530 APOGEE
2000:043:07:31:45.257 PERIGEE
2000:044:15:16:24.023 APOGEE

EVENTS						DONE	OBSID
--------------					----	-----
AOS, DSS-46 (Canberra 26m)			2140	766
Commence maneuver to NGC 526A                   2246
LOS						2335

QUICK LOOK DATA
---------------
No new quick look data have been received.

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

A major class X1.2/3B solar flare erupted from Region 8858 at 19:28 UTC
on 05 February 2000. A coronal mass ejection (CME) was associated with 
this flare, and was detected by the ACE satellite. However, the proton
flux measured by ACE was 10x lower than the Chandra alert levels.

PCAD: The onboard ephemeris coefficients update has been postponed until
tomorrow.

Intermittent problems with command lock through DSS-46 until they
retuned their klystron.

At AOS Chandra's state was:

UTC 2000:038:21:45:00 (Mon Feb  7) f_ACE 7.59e+02  F_ACE 6.64e+07  R km 133341A
OBT 2000:038:21:44:29  CTUVCDU 11390512  OBC s/w NRML  FMT2_NORM   CPEstat NORM
OBT       66347069.63  ONLVCDU 11390512  OBC Errs   0
                                                     OBSID    766  EPState  SUN
SIM TTpos   75623  HETG Angle  80.6  PCADMODE NPNT   RA    70.344  Bus V  30.55
SIM FApos    -467  LETG Angle  79.1  PCONTROL NPNT   Dec   -2.852  Bus I  28.24
                                     AOFSTAR  GUID   Roll 287.315
ACA Object FFFSSSSS    Dither  ENAB                                HRC-I HV  ON
ACA ImFunc TTTTTTTT    Dith Yang  -7.85    Yaw Rate     -0.01      HRC-S HV OFF
ACA CCD Temp  -10.4    Dith Zang  -1.93    Pitch Rate   -0.03      OBSMode NEXT
ACA Int Time  1.698                        Roll Rate     0.05      Door OP UNAC
AOACSTAT         OK    FSS SunBeta  SUN                            Door CL UNAC
                       FSS Alfa   -0.52    Batt 1 SOC  100.00%
Avg HRMA Temp 70.58    FSS Beta  -18.21    Batt 2 SOC  100.00%  ACIS Stat7-0 64
Avg OBA Temp  50.97    SA Resolv 108.53    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   13.33
HRMA power    88.20                        -Y SA Amps   14.68   EPHIN Geom LARG
OBA power     67.40                        +Y SA Temp  116.58   E1300         2
                                           -Y SA Temp  116.22   P4GM          0
Roll Mom.    -5.445    SCS 128                                  P41GM         0
Pitch Mom.   -6.713    SCS 129             UpL Cmd Acc  41631   A-Leak   0.3680
Yaw Mom.     -7.959    SCS 130             Cmd Rej A       34   B-Leak   0.0560