To:sot_shift
from: Dan Schwartz
date: 13 Jun 00 , 12:00noon EDT
Subject: SOT shift report, Shift L326
--------
See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Jun_13_2000_L326.txt.

Shift L326. 
	Start at 165:12:00  GMT
		 = 08:00am    13 Jun EDT
	End	   12:00 noon 13 Jun
   
SOT Lead	DAS

(Times will be given in GMT on day 165. In general
times are rough, not precise.)

PLAN
Running load JUN1100d. Perform OBSID 700, a long ACIS-S/HETG
observation of Serpens X-1, a bursting low-mass X-ray binary with Fe K
line emission. Then OBSID 670, ACIS-S observation of 1812-12, a low
mass X-ray binary. Then OBSIDs 1711 and 1712, two calibration
observations of 3C 273 with ACIS-S/LETG and ACIS-S/HETG, respectively.

Next Comms:
	 165:18:20 to 19:20
	 166:02:50 to 03:50
	 166:11:35 to 12:35
	 166:21:15 to 22:15
	 167:06:10 to 07:10
	 167:14:50 to 15:50
	 167:18:00 to 22:00 SQUEEGY VI tests.
	 167:23:50 to 01:50

EVENTS
Status at LOS, 165:08:44 was as follows:

       PCAD MODE              =       NPNT
       CONTROL LAW FLAG       =       NPNT
       Stars:                 =          5 
       FIDS                   =          3
       RA                     =    280.012 deg 
       DEC                    =      5.038 deg
       ROLL                   =    148.570 deg
       Format                 =          2
       OBSID                  =        700 (Ser X-1)

       SIM FA                 =       -467
       SIM TSC                =      73391 (ACIS-S)
       HETG                   =         IN ( 6.3 deg)
       LETG                   =        OUT (78.3 deg)
        HRC-S HV is ON 
        EPHIN:         A-Leak =  0.4400 mu-a
                       B-Leak =  0.0720 mu-a
12:46 Ascending through 110584 km.

NOTES/ISSUES/PROBLEMS
At ~10:30 ACE 130-214 keV proton fluxes were about 10^4, about 3 times
lower than trigger rates, and falling slowly. But a CME from June 10
is expected to impact the earth mid-day today.
By ~14:30 fluxes continuing to fall, to ~7500 /(cm^2 s ster MeV).

HEAD machines can't connect to printers. E.g., UNAGI can't
access sleepy, and DSOPS reports they cannot print. Problem being
investigated. 

From the 9am status meeting:
	Three supports, 4 dumps, onboard loads good until 168:11:30.
First load review of JUN1800 was good, need star catalogs and momentum
dumps. Next review planned for tomorrow, June 14, at 2pm EDT. After
that load review, we will have a review of the CAP for squeegy run
VI. See http://asc.harvard.edu/acis/CAPs/axaf_squeegy_s0_maxangres.ps
for a draft of the CAP.
	The routine CAP for checking CPE warmstart count was
run. Count was "1" as expected.
	We had a situation on the current load where ground products
were not in accordance with actual flight products. Note that all
flight products were correct, and Chandra correctly executed the
desired flight program:	
1. Backstop products at the OC console were not generated from the most
recent (rev. d) load products. Action: review and diagram the entire
backstop process, consider how to ensure a single backstop generation
and signoff process -- note that the SOT version of backstop products
did show the correct rev d configuration. 
2. Documentation said we were running load JUN1100c instead of
JUN1100d. This is due to an error in filling out the cover form.
Verifying the rev number needs to be added to the Flight Director's
check list for signing off on the load.
3. Various revisions of the JUN1100 load were assigned the same rev
number by the OFLS. This was due to having deleted the directory
containing previous versions, a normal process, so that the OFLS
started over with the rev number sequence when subsequent late changes
were made. Action: review the process of deleting previous scheduling
directories, assess schemes for keeping them until after the week is
over. 
4. Spacecraft was not turned on when DSN contact started. Explanation:
DSN had been given two options by us, but had not gotten back to us to
define which schedule they were on. Chandra loads were built correctly
for the choice which was assumed. Action: make a positive contact with
the correct DSN person responsible for overall scheduling. 

Quick look data:
None available, due to HEAD/OCC network problems connecting to printers.

-------------------------------------------------------
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 
-------------------------------------------------------