Aug_24_1999_H34.txt Shift H34 
        Start at 1999:236:18:00 GMT = 1999 Aug 24 2:00pm EDT
        End                           1999 Aug 24 10:00pm EDT

See http://asc.harvard.edu/acis/SOT_reports/sot-shift.html, or 
/proj/ascwww/AXAF/extra/science/htdocs/acis/SOT_reports/Aug_24_1999_H34.txt.
   
SOT Lead	Ed Kellogg
SOT SC/ACA	
FOT-SI		
HRC-SI		
ACIS-SI		

(Times: hhmm or ddd:hhmm, not precise.)

EVENTS							PLAN	DONE	OBSID
--------------						----	----	-----
AOS DSS-16, Goldstone					0545	0545	1281
PCAD completed maneuver, found 3 fids & 5 stars			0555	
ACIS starts science run					0556	0556
ACIS stop science					0933	0933
OBSID change						0936	0936	1227
PCAD completed maneuver, found 3 fids & 5 stars		0946	0938
Lost TLM after changeover to Canberra				0950
TLM back again							0956

NOTES/ISSUES/PROBLEMS 
--------------------- 
At start of shift, we were LOS. 

At first AOS, 0545, we were maneuvering - no stars tracking. By 0555,
we had locked on with good stars and fids. ACIS started its science
run apparently normally.

0618	We see the star in slot 7 appearing and disappearing at a
fairly regular rate, with a period of ~12-14 sec. It disappears for
6-8 sec, then reappears. Its listed brightness is 7.98. None of the
other stars or fids is doing this.

0629 Vacuum = 3.98e-6 torr.

0650 Slot 7 is still doing the same thing.

0824 Vacuum = 3.0e-6 torr. Slot 7 is still behaving the same.

0938 We again see the star in slot 7 appearing and disappearing at a
fairly regular rate, with a period of ~17 sec.