Observation information
- date-obs: 2025-05-09
- time-obs: 00:48:45.331900000
- date-end: 2025-05-09
- time-end: 02:56:49.292800000
- obs_id: C09_011T06_9000006468
- exposure: 6105.76354837
- 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_51992cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006468_51992cztM0_level2_quad_clean.evt
|
Size (bytes) | 834,503,040 | 96,701,760 |
Size | 795.8 MB
| 92.2 MB
|
Events in quadrant A | 8,430,719 | 576,935 |
Events in quadrant B | 4,716,218 | 712,840 |
Events in quadrant C | 6,921,257 | 604,238 |
Events in quadrant D | 10,253,263 | 520,640 |
Level1 data integrity
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 30281 | 1 |
B | 0 | 19462 | 1 |
C | 0 | 25838 | 1 |
D | 0 | 35641 | 1 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 3 | 0 |
B | 0 | 3 | 0 |
C | 0 | 3 | 0 |
D | 0 | 3 | 0 |
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 148 | 0 |
B | 0 | 148 | 0 |
C | 0 | 148 | 0 |
D | 0 | 148 | 0 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 7374 | 1322 | 17.927855% |
B | 7374 | 392 | 5.315975% |
C | 7375 | 928 | 12.583051% |
D | 7375 | 1518 | 20.583051% |
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 | 7684 | 7375 | 1093 | 1093 | 14.22% | 14.82% |  |
B | 7684 | 7375 | 145 | 145 | 1.89% | 1.97% |  |
C | 7685 | 7376 | 844 | 844 | 10.98% | 11.44% |  |
D | 7685 | 7376 | 1549 | 1549 | 20.16% | 21.00% |  |
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 | 2680258 | 15235.65 | 699 | 682 | 175.9 |
A | 4 | 95 | 683445 | 3882.08 | 699 | 682 | 175.9 |
A | 3 | 14 | 631231 | 3585.2 | 699 | 682 | 175.9 |
B | 4 | 206 | 364411 | 2272.33 | 748 | 721 | 160.1 |
B | 4 | 81 | 233451 | 1454.09 | 748 | 721 | 160.1 |
B | 4 | 170 | 149769 | 931.25 | 748 | 721 | 160.1 |
C | 15 | 224 | 3276414 | 16657.12 | 703 | 696 | 196.7 |
C | 13 | 3 | 374696 | 1901.8 | 703 | 696 | 196.7 |
C | 15 | 192 | 135494 | 685.45 | 703 | 696 | 196.7 |
D | 6 | 42 | 3571615 | 18565.56 | 670 | 640 | 192.3 |
D | 8 | 176 | 1038048 | 5393.5 | 670 | 640 | 192.3 |
D | 12 | 6 | 783641 | 4070.84 | 670 | 640 | 192.3 |
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 |  |