SOT shift report 2001-12-13 M875
Start at 2001:347:22:00 GMT
       = 2001 Dec 13 05:00 pm EST
End                  06:45 pm EST

SOT Lead	Mark Freeman

Plan
---- 
Continuing OBSID 03013, UM425 2001:347:07:41:46.927 111.5 ACIS-S NONE
ORIENTATION VS. EVOLUTION FROM A UNIQUE BALQSO - deep ACIS-S imaging
spectroscopy of the brightest Broad Absorption Line (BAL) QSO

ACIS orbital fluence is approaching the nominal trip limit of 1.0e9
due to moderately high proton flux over the last day or so.  However,
the pertinent rates are currently in slow decline and unless there is
a significant upturn, the total dose should remain within budget. 
ACE P3 rate is currently around 5200.

Radiation summary				Observed  Limit
-----------------				--------  -----
ACE 2 hr fluence				3.9e7 	   3.6e8.
GOES-8/P2 4-9 MeV protons   `P4GM'	        0.4   	  95.
GOES-8/P5 40-80 MeV protons `P41GM'		0.008  	   0.78
*ACIS* Orbital fluence (since perigee)	        9.6e8      1.0e9

Real time observations				GMT	OBSID
-------------------------------------------------------------
Start shift					2200
AOS (DSS-24)					2210
Status nominal: 3 fids, 5 stars			2215	3013
LOS						2330
End shift					2345

Notes/Issues/Problems
---------------------

(1) Chandra SOH via snapshot:

UTC 2001:347:23:15:54 (Dec13) f_ACE 5.21e+03 F_CRM 1.28e+09 Kp 1.3 R km 133539D
OBT 2001:347:23:15:27  CTUVCDU  6080767  OBC s/w NRML  FMT2_NORM   CPEstat NORM
OBT      124672527.49  ONLVCDU  6080752  OBC Errs   0
                                                     OBSID   3013  EPState  SUN
SIM TTpos   75623  HETG Angle 79.46  PCADMODE NPNT   RA   170.845  Bus V  29.93
SIM FApos    -467  LETG Angle 77.96  PCONTROL NPNT   Dec    1.610  Bus I  29.00
                                     AOFSTAR  GUID   Roll  61.230
ACA Object FFFSSSSS    Dither  ENAB                                HRC-I HV  ON
ACA ImFunc TTTTTTTT    Dith Yang   3.63    Yaw Rate     -0.03      HRC-S HV OFF
ACA CCD Temp  -10.4    Dith Zang   7.73    Pitch Rate   -0.08      OBSMode NEXT
ACA Int Time  1.698                        Roll Rate     0.15      Door OP UNAC
AOACSTAT         OK    FSS SunBeta  SUN                            Door CL UNAC
                       FSS Alfa    5.23    Batt 1 SOC  100.00%
Avg HRMA Temp 70.61    FSS Beta   -1.33    Batt 2 SOC  100.00%  ACIS Stat7-0 65
Avg OBA Temp  51.21    SA Resolv  90.52    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   13.91   RadMon     ENAB
HRMA power    11.80    SCS 128   ACT       -Y SA Amps   14.68   EPHIN Geom LARG
OBA power     64.10    SCS 129   ACT       +Y SA Temp  115.85   E150        8.5
                       SCS 130   ACT       -Y SA Temp  116.22   E300        0.2
Roll Mom.    -6.919    SCS 107  INAC                            E1300       0.0
Pitch Mom.    1.611   UpL Cmd Acc  48475   EPH A-Leak  1.0200   P4GM        1.7
Yaw Mom.     -3.389   Cmd Rej A      104   EPH B-Leak  0.6400   P41GM       0.0

(2) Chandra Radiation Model (CRM) summary:

UTC 2001:347:23:15:54 (Dec13) f_ACE 5.21e+03 F_CRM 1.28e+09 Kp 1.3 R km 133539D

                    Currently scheduled FPSI, OTG : ACIS-S NONE
                                      Costello Kp : 1.33
        ACE EPAM P3 Proton Flux (p/cm^2-s-sr-MeV) : 5.21e+03
                                 Orbit Start Time : 2001:346:08:49:00
              Geocentric Distance (km), Orbit Leg : 133583 D
                                       CRM Region : 1 (Solar_Wind)
           External Proton Flux (p/cm^2-s-sr-MeV) : 5.21000000000e+03
         Attenuated Proton Flux (p/cm^2-s-sr-MeV) : 5.21000000000e+03
  External Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.34190673662e+09
Attenuated Proton Orbital Fluence (p/cm^2-sr-MeV) : 1.28489670312e+09
**************************************************************************
See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Dec_13_2001_M875.txt