C H A N D R A   S C I E N C E   C E N T E R
O B S E R V A T I O N   C A T A L O G

OBSID:
25586
Title:
AO-23 Monitor the HRC-I PSF and spatial Variations in the HRC-I Gain - September
Investigator:
Calibration
Observer:
Jerius, Diab
Phone:
617 495-7421
Email:
djerius@cfa.harvard.edu
Target Name:
ArLac
Sequence Number:
291674
Instrument:
HRC-I
Grating:
NONE
SI Mode:
OBS20743
Raster Scan:
N
Annotated DOT:
DEC0423a

Proposal Number:
23200614
Right Ascension:
332.17
Declination:
45.7423
Status:
archived
Start Date:
2023-12-06 23:22:08
Category:
STARS AND WD
Type:
CAL
AO Cycle:
23
Dither Flag:
Y
Y Offset:
-4.0
Z Offset:

Est. Count Rate:
10
Order-1 Count Rate:

Exposure Time:
1.00
Time Remaining:

Reqd Start Time:

Reqd Stop Time:

Period:

Epoch:

Start of Period:

End of Period:

PS Margin:

PE Margin:

Max Segments:
0

Trigger Level:
DEF
Range Switch Lvl:
DEF
Spect Mode:
DEF
Antico Enab:
DEF
Width Enab:
DEF
Width Thold:
DEF
Uld Enab:
DEF
Upper Lvl Disc:
DEF
Blank Enab:
EDGE
U Blank Hi:
119
V Blank Hi:
119
U Blank Lo:
69
V Blank Lo:
69
Py Shutter Pos:
DEF
My Shutter Pos:
DEF
Timing Mode:
N

Abstract:
We continue to monitor the small scale gain variations in the HRC-I with raster scans of ArLac.

Remarks:
Please batch the AR Lac observations 25571-25575 into the following continiguous sets 1: 25571-25575 2: 25576-25583 3: 25584-25591

OBSID 25586 not found in Q/L Processing Logs dated Sun Apr 13 11:48:39 EST 2025


pgf@space.mit.edu Fri Apr 11 21:41:30 EST 2025