To:sot_shift
from: Dan Schwartz
date: 18 Nov 99 , 12:00noon EST
Subject: SOT shift report, Shift L118
--------
See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Nov_18_1999_L118.txt.

Shift L118. 
	Start at 322:13:00  GMT
		 = 08:00am    18 Nov EST
	End	   12:00 noon 18 Nov
   
SOT Lead	DAS

(Times will be given in GMT on day 322. In general
times are rough, not precise.)

PLAN
Continue running under p26b. OBSID 1480 using ACIS-S on NGC7293
should have finished. Expect to be doing 928 using ACIS-S 
on MS 2137.3-2353 for 13 hours.

EVENTS

Status at LOS 3322:07:59, was as follows:
       PCAD MODE              =       NPNT
       CONTROL LAW FLAG       =       NPNT
       Stars:                 =          4 
       FIDS                   =          3 
       RA                     =     337.387 deg  (NGC 7293)
       DEC                    =     -20.827 deg 
       ROLL                   =     296.332 deg 
       Format                 =          2
       OBSID                  =       1480

       SIM FA                 =       -467
       SIM TSC                =      75624 (ACIS-S)
       HETG                   =        OUT (80.6 deg)
       LETG                   =        OUT (79.1 deg)
        HRC both HV are OFF
        EPHIN:         A-Leak =   0.3320 mu-a
                       B-Leak =   0.0520 mu-a

14:00 AOS
Status at 322:14:36, was as follows:
       PCAD MODE              =       NPNT
       CONTROL LAW FLAG       =       NPNT
       Stars:                 =          5 
       FIDS                   =          3 
       RA                     =     325.038337.387 deg  (MS 2137.3-2353)
       DEC                    =     -23.661-20.827 deg 
       ROLL                   =     288.360296.332 deg 
       Format                 =          2
       OBSID                  =        928

       SIM FA                 =       -467
       SIM TSC                =      75624 (ACIS-S)
       HETG                   =        OUT (80.6 deg)
       LETG                   =        OUT (79.1 deg)
        HRC both HV are OFF
        EPHIN:         A-Leak =   0.3160 mu-a
                       B-Leak =   0.0480 mu-a

       ALTITIUDE	      =   141471 km, Descending

16:00 LOS



NOTES/ISSUES/PROBLEMS
ACE flux of 130--214 keV protons has gradually dropped from ~300 to
150 over the past 24 hours. Quiescent level is ~20 per 
(cm^2 s MeV ster).  From the Solar Terrestrial Activity Report
webpage:  "Region 8765 developed further and is a very complex region
capable of producing a major proton flare at any time over the next
few days. Region 8766 developed further as well and has the potential
to produce a major proton flare." Fairly high probability of impact
from coronal mass ejection late Nov 19/early Nov 20.

Notes from 9am status meeting;
	4 passes yesterday; 4 SSR dumps all good. One more portion of
current load was unlinked -- 2 more to go to finish p26b.
	P27 products now out, load review planned for 3pm.
	P28 -- trying to schedule two ways for comparison: using OFLS
scheduler and using all linked observations.
	Installation of ONLS 3.6 and OFLS 8.0 is now underway, for
testing on the 3rd string. This will bring 3rd string down all day. 


-------------------------------------------------------
Dan Schwartz,	MS #3
das@head-cfa.harvard.edu  
phone: (617)495-7232    FAX:   (617)495-7356
cell phone: (617)512-5627   
pager: 800-759-8352 PIN 1636502
       or e-mail 1636502@skytel.com 
-------------------------------------------------------