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OBSID:
25632
 Title:
2021 Fall Semester - Calibration Observations of Cas A     
Investigator:
Calibration
 Observer:
Bogdan, Akos
 Phone:
617 495-7380
 Email:
abogdan@cfa.harvard.edu
Target Name:
Cas A
 Sequence Number:
590624
 Instrument:
ACIS-S
 Grating:
NONE
 SI Mode:
TE_00D82B
 Raster Scan:
N
 Annotated DOT:
NOV0821a

Proposal Number:
23500621
 Right Ascension:
350.858
 Declination:
58.8148
 Status:
archived
 Start Date:
2021-11-10 01:18:37
Category:
SN, SNR AND ISOLATED NS
 Type:
CAL
 AO Cycle:
23
 Dither Flag:
Y
 Y Offset:
23.2
 Z Offset:
0
Est. Count Rate:
150
 Order-1 Count Rate:

 Exposure Time:
2
 Time Remaining:
2.115
 Reqd Start Time:

 Reqd Stop Time:
Period:

 Epoch:

 Start of Period:

 End of Period:

 PS Margin:

 PE Margin:

 Max Segments:
0

ACIS Mode:
TE
 Standard?:
No
 BEP Mode:
F
On-Chip Summing?:
No
 Row Sum:

 Column Sum:

 Frame Time:
Subarray Mode:
NONE
 Starting Row:
0
 Row Count:
1023
 Subarray Frame Time:

Duty Cycle?:
No
 Cycle Count:
0
 Primary Exp Time:

 Secondary Exp Time:
Event Filter?:
No
 Filter Threshold:

 Filter Range:

 Bias Requested?:
No
 Bias Frequency:

 Bias After?:
No
 Spatial Window?:
No

Abstract:
Due to the continued fading of the ECS, the calibration team is transferring the ACIS gain calibration to Cas A.

Remarks:
This observation is planned to determine how well the gain corrections derived from Cas A agree with those derived from the ECS. To make a direct comparison, this observation must be executed with a cold focal plane temperature (-117.2 to -120 C).

psci Run:
286
 Processing Date:
Nov 16 2021
 psci Directory:
/nfs/maaxnew/r3/fc/acis117e/acis117.log
OBSID:
25632
 SIM Mode:
ACIS-S
 OTG Mode:
NONE
 Seq Number:
590624
 Target Name:
Cas_A
 AO:
23
Start VCDU:
94252:104
 Start Time (UTC):
314:05596.673
 Stop Time (UTC):
314:07722.340
 Kilosecs:
2.1
 % Frames:
100.0
 # CCDs:
S1
# Frames:
699
 # Events:
194877
 Events/sec:
91
 PSCI errors:
0
 % drops:
0.1
 Bias Errs:
0
 FP Temp:
-118.7
Parameter Block:
0x00d82014
 Window Block:
-
 # Windows:
0
 FEP Mode:
Te3x3
 BEP Mode:
F
 Start Row:
0
 # Rows:
1024
Primary Exposure:
30
 Secondary Exposure:
0
 Duty Cycle:
0
 Summing?:
No
 Bias?:
Yes
 Trickle?:
Yes
 Bias Run:
286

pgf@space.mit.edu Mon Mar 31 10:36:39 EST 2025