2007-05-14
DV REPORT - EED  Weekend timeline 12-14 May 2007

OVERVIEW 

An FW1 anomaly occurred during the multi-filter synoptic.

Atmospheric absorption is a problem for every high cadence
observation. We need to extend the eclipse region by about 4
minutes on each side of predicted night.	

Eclipse season temperatures
XRT is adjusting to the new thermal conditions of the eclipse season.
Key temperatures are the mirror support plate: TMP11, TMP12
and the shutter motor: TMP22
Over the past week TMP 11, TMP12 have dropped from above 40C to
about 35C there is some indication that the rate of change is decreasing.
Over the past week TMP22 has decreased from 8.5C to 5.4C. Again there
is indication that the rate of changes has decreased significantly  over
the past 12 hrs.

Our plan for testing the thermal balance starting next week (rear
heaters on 18-May) is consistent with these changes. At this point
it appears unlikely that the FSA (TMP22) will drop below 4C by next
Monday. We will monitor these developments over the week.

Weekend operations
Shutter Odometer shows data taken continuously over the weekend.

REVIEW of QUICKLOOK DATA

14 - 00:07 Synoptic is dark - eclipse/absorption?

TIMELINE REVIEW for 2007/05/12

12 - 10:52 XOB1383 microflares runs for ~40 min
		OK
         11:29 XOB137A Synoptic
		OK
         11:41 XOB1383 Microflares 
		OK - 14:19 AR-AR interconnecting loop;
		          13:00:12 - atmospheric absorption - night end 12:57:30
		          14:25:34 -                "             night start 14:27:30
		          16:04:01 -                "             night start  16:06:00
		           16:14:32 -              "              night end  16:14:30
			17:55:33 -              "             night end   17:53
                                  17:41:10 - atmospheric absorption
.... Absorption near all of the night start/ends

         18:15 XOB137A Synoptic
		OK
         18:25 XOB1383 Microflares 
		OK - 20:57:46 - 21:12:47 atmospheric absorption
		         22:35:36 - 22:53:53        "
		         23:15:38 - missing Al_thick images - see image:
			missing_al-thick_20070512_2314.tiff
13 -  00:00 XOB137A Synoptic
		OK
         00:10 XOB1388 MHD waves
		Missing data 01:43:35 - 02:27:36
                        Absorption issues here too
         06:02 XOB137A Synoptic
		OK
         06:12 XOB137F microflare 
		  OK
		  Absorption issues here too
         10:57 XOP137A Synoptic
		OK
         11:07 XOB137F microflare
		OK
		Absorption issues here too
         16:16 XOB1387 Synoptic - multi-filter
         		Apparent FW1 anomaly 
		Image order should have been
	... Be_thin, Be_thin, Be_med, Be_med, Al_med, Al_med, Al_poly, Al_poly
                         The Al_med and Al_poly images are missing
         16:36 XOB1389 AR Topology (shifted fov)
		First two images of this sequence are missing 
		Should be been:
                        Gband, Al_poly*30 
		Gband is missing and only 29 Al-poly's until the next gband
         18:00 XOB1387 Synoptic - multi-filter
		OK - looking at the atmospheric absorption earlier in the day
		suggests that all 11 images are free from absorption
         18:42 XOB1389 AR Topology (shifted fov)
		OK
         19:46 XOB138A AR Topology (centered fov)
		OK
14 -  00:05 XOP137A Synoptic
		OK - dark is split between two files in quicklook
         0015 XOB137F microflare
		 missing images from Ti_poly high cadence - should be 24
			only have 17, 9-min gap not during night 
		missing image Be_thick 02:32:59 - night begins 02:34
		Data missing during download 03;17 - 03:34
		Data missing during download 05:08 - 05:12
         06:13 XOP137A Synoptic
		OK
         06:23 XOB1383 Microflares
		Missing Be_thick 07:40:10 - during night
		Missing data 09:41 - 10:30; 10:30 - 11:09
         10:29 XOP137B Synoptic - backup ----NOT Run