Observation information
- date-obs: 2025-05-06
- time-obs: 19:01:07.771000000
- date-end: 2025-05-06
- time-end: 21:04:15.753600000
- obs_id: C09_011T06_9000006468
- exposure: 4002.70900428
- 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_51959cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51959cztM0_level2_quad_clean.evt
|
Size (bytes) | 758,623,680 | 81,126,720 |
Size | 723.5 MB
| 77.4 MB
|
Events in quadrant A | 6,314,062 | 523,175 |
Events in quadrant B | 4,280,295 | 640,735 |
Events in quadrant C | 9,778,877 | 383,372 |
Events in quadrant D | 7,227,500 | 474,736 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 23072 | 1 |
B | 0 | 16919 | 1 |
C | 0 | 33377 | 1 |
D | 0 | 25734 | 1 |
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 | 126 | 0 |
B | 0 | 126 | 0 |
C | 0 | 126 | 0 |
D | 0 | 126 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6218 | 1001 | 16.098424% |
B | 6219 | 318 | 5.113362% |
C | 6219 | 2577 | 41.437530% |
D | 6219 | 1109 | 17.832449% |
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 | 7388 | 6219 | 700 | 700 | 9.47% | 11.26% |  |
B | 7389 | 6220 | 209 | 209 | 2.83% | 3.36% |  |
C | 7389 | 6218 | 1923 | 1923 | 26.03% | 30.93% |  |
D | 7389 | 6220 | 1098 | 1098 | 14.86% | 17.65% |  |
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 | 7 | 64 | 1827647 | 12070.09 | 608 | 593 | 151.4 |
A | 4 | 159 | 535976 | 3536.91 | 608 | 593 | 151.4 |
A | 4 | 249 | 414806 | 2736.42 | 608 | 593 | 151.4 |
B | 10 | 41 | 523050 | 3815.99 | 647 | 626 | 136.9 |
B | 10 | 247 | 168629 | 1227.16 | 647 | 626 | 136.9 |
B | 10 | 44 | 164252 | 1195.19 | 647 | 626 | 136.9 |
C | 15 | 224 | 6631749 | 46381.64 | 509 | 504 | 143.0 |
C | 4 | 5 | 327563 | 2287.58 | 509 | 504 | 143.0 |
C | 15 | 230 | 159088 | 1109.2 | 509 | 504 | 143.0 |
D | 6 | 42 | 3174899 | 18754.5 | 593 | 566 | 169.3 |
D | 12 | 17 | 385263 | 2272.86 | 593 | 566 | 169.3 |
D | 0 | 5 | 274260 | 1617.03 | 593 | 566 | 169.3 |
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 |  |