Observation information
- date-obs: 2025-05-09
- time-obs: 18:07:58.182700000
- date-end: 2025-05-09
- time-end: 20:13:56.164900000
- obs_id: C09_011T06_9000006468
- exposure: 3638.32938528
- sourceid: NGC 188
- observer: stalin
- ra_pnt: 12.08
- dec_pnt: 85.15722
Basic statistics of files
Param |
Original file |
Final file |
Filename | modeM0/AS1C09_011T06_9000006468_52003cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_52003cztM0_level2_quad_clean.evt
|
Size (bytes) | 814,006,080 | 83,180,160 |
Size | 776.3 MB
| 79.3 MB
|
Events in quadrant A | 6,528,086 | 534,901 |
Events in quadrant B | 5,020,394 | 650,692 |
Events in quadrant C | 5,945,583 | 561,508 |
Events in quadrant D | 12,148,925 | 329,056 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23841 | 2 |
B | 0 | 19371 | 2 |
C | 0 | 22044 | 7 |
D | 0 | 40446 | 2 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 12 | 0 |
B | 0 | 12 | 0 |
C | 0 | 12 | 0 |
D | 0 | 12 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 130 | 0 |
B | 0 | 130 | 0 |
C | 0 | 130 | 0 |
D | 0 | 130 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6328 | 1117 | 17.651707% |
B | 6329 | 471 | 7.441934% |
C | 6328 | 777 | 12.278761% |
D | 6328 | 3044 | 48.103666% |
Noise dominated fraction
Noise dominated data is calculated using 1-second bins in cleaned event files. If a bin has >2000 counts, and if more than 50% of those come from <1% of pixels, then it is considered to be noise-dominated and hence unusable.
Quadrant |
# 1 sec bins |
Bins with >0 counts |
Bins with >2000 counts |
High rate bins dominated by noise |
Noise dominated (total time) |
Noise dominated (detector-on time) |
Marked lightcurve |
A | 7558 | 6328 | 929 | 929 | 12.29% | 14.68% |  |
B | 7559 | 6330 | 313 | 313 | 4.14% | 4.94% |  |
C | 7558 | 6329 | 671 | 671 | 8.88% | 10.60% |  |
D | 7557 | 6327 | 3159 | 3159 | 41.80% | 49.93% |  |
Top noisy pixels
Top three noisy pixels from each quadrant. If the there are fewer than three noisy pixels in the level2.evt file, extra rows are filled as -1
Pixel properties |
Quadrant properties |
Quadrant |
DetID |
PixID |
Counts |
Sigma |
Mean |
Median |
Sigma |
A | 2 | 48 | 1664446 | 10685.5 | 619 | 605 | 155.7 |
A | 7 | 64 | 604016 | 3875.22 | 619 | 605 | 155.7 |
A | 3 | 14 | 537513 | 3448.12 | 619 | 605 | 155.7 |
B | 7 | 0 | 534776 | 3839.61 | 665 | 643 | 139.1 |
B | 4 | 206 | 385105 | 2763.7 | 665 | 643 | 139.1 |
B | 4 | 171 | 299820 | 2150.63 | 665 | 643 | 139.1 |
C | 15 | 224 | 2404322 | 13563.67 | 642 | 640 | 177.2 |
C | 9 | 38 | 283034 | 1593.51 | 642 | 640 | 177.2 |
C | 12 | 252 | 146307 | 821.98 | 642 | 640 | 177.2 |
D | 6 | 42 | 4199545 | 27394.14 | 535 | 512 | 153.3 |
D | 12 | 17 | 2373990 | 15484.37 | 535 | 512 | 153.3 |
D | 8 | 176 | 1520843 | 9918.51 | 535 | 512 | 153.3 |
Detector plane histogram (DPH)
Histogram calculated using DETX and DETY for each event in the final _common_clean file
Quadrant A |
 |
 |
Quadrant B |
Quadrant D |
 |
 |
Quadrant C |
Count rate plots and images
Plot type |
Count rate plots |
Images |
Comparison with Poisson distribution
Blue bars denote a histogram of data divided into 1 sec bins.
Red curve is a Poisson curve with rate = median count rate of data. |
 |
 |
Quadrant-wise count rates
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant A
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant B
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant C
Data is divided into 100 sec bins |
 |
 |
Module-wise count rates for Quadrant D
Data is divided into 100 sec bins |
 |
 |
Housekeeping plots
Parameter |
Plot |
CZT HV Monitor |  |
D_VDD |  |
Temperature 1 |  |
Veto HV Monitor |  |
Veto LLD |  |
Alpha Counter |  |
_CPM_Rate |  |
CZT Counter |  |
+2.5 Volts monitor |  |
+5 Volts monitor |  |
_ROLL_ROT |  |
_Roll_DEC |  |
_Roll_RA |  |
Veto Counter |  |