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:
26686
 Title:
LOCALIZING AND CLASSIFYING UNIDENTIFIED HIGH-ENERGY X-RAY SOURCES DISCOVERED BY INTEGRAL
Investigator:
Chakraborty
 Observer:
Chakraborty, Priyanka
 Phone:
6462496058
 Email:
priyanka.chakraborty@cfa.harvard.edu
Target Name:
IGR J19225+1836
 Sequence Number:
901839
 Instrument:
ACIS-I
 Grating:
NONE
 SI Mode:
TE_006E6B
 Raster Scan:
N
 Annotated DOT:
MAR2723a

Proposal Number:
24910211
 Right Ascension:
290.64
 Declination:
18.61
 Status:
archived
 Start Date:
2023-03-30 10:55:15
Category:
GALACTIC DIFFUSE EMISSION AND SURVEYS
 Type:
GO
 AO Cycle:
24
 Dither Flag:
Y
 Y Offset:
0
 Z Offset:
0
Est. Count Rate:
0.033
 Order-1 Count Rate:

 Exposure Time:
5
 Time Remaining:
5.083
 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:
VF
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:
We propose 5 ksec Chandra ACIS-I observations for each of 9 unclassified IGR sources newly discovered by INTEGRAL. We will localize the sources, identify their multi-wavelength counterparts, measure their soft X-ray spectra, and classify them. These will be the first observations of these targets by Chandra or XMM-Newton.

psci Run:
341
 Processing Date:
Apr 10 2023
 psci Directory:
/nfs/maaxnew/r3/fi/acis123e/acis123.log
OBSID:
26686
 SIM Mode:
ACIS-I
 OTG Mode:
NONE
 Seq Number:
901839
 Target Name:
IGR_J19225+1836
 AO:
24
Start VCDU:
108826:104
 Start Time (UTC):
089:40088.276
 Stop Time (UTC):
089:45186.156
 Kilosecs:
5.1
 % Frames:
100.0
 # CCDs:
I4
# Frames:
1623
 # Events:
95036
 Events/sec:
18
 PSCI errors:
0
 % drops:
0.1
 Bias Errs:
0
 FP Temp:
-110.1
Parameter Block:
0x006e6034
 Window Block:
-
 # Windows:
0
 FEP Mode:
Te5x5
 BEP Mode:
F
 Start Row:
0
 # Rows:
1024
Primary Exposure:
31
 Secondary Exposure:
0
 Duty Cycle:
0
 Summing?:
No
 Bias?:
Yes
 Trickle?:
Yes
 Bias Run:
341

pgf@space.mit.edu Sat Mar 29 10:37:19 EST 2025