Observation information
- date-obs: 2025-05-14
- time-obs: 14:33:10.214800000
- date-end: 2025-05-14
- time-end: 16:33:19.197500000
- obs_id: C09_011T07_9000006470
- exposure: 868.457461715
- 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_011T07_9000006470_52075cztM0_level2.fits
| modeM0/AS1C09_011T07_9000006470_52075cztM0_level2_quad_clean.evt
|
Size (bytes) | 939,672,000 | 68,362,560 |
Size | 896.1 MB
| 65.2 MB
|
Events in quadrant A | 4,091,368 | 582,987 |
Events in quadrant B | 5,966,975 | 580,220 |
Events in quadrant C | 8,963,561 | 404,885 |
Events in quadrant D | 15,292,871 | 77,367 |
Level1 data integrity
Mode SS |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 124 | 0 |
B | 0 | 124 | 0 |
C | 0 | 124 | 0 |
D | 0 | 124 | 0 |
Mode M9 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 11 | 0 |
B | 0 | 11 | 0 |
C | 0 | 11 | 0 |
D | 0 | 11 | 0 |
Mode M0 |
Quadrant | BADHDUFLAG | Total packets | Discarded packets |
---|
A | 0 | 16115 | 1 |
B | 0 | 21903 | 1 |
C | 0 | 30820 | 1 |
D | 0 | 49506 | 3 |
Data saturation
Quadrant | Total seconds | Saturated seconds | Saturation percentage |
---|
A | 6069 | 301 | 4.959631% |
B | 6070 | 796 | 13.113674% |
C | 6070 | 2225 | 36.655684% |
D | 6069 | 5383 | 88.696655% |
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 | 7209 | 6069 | 220 | 220 | 3.05% | 3.62% |  |
B | 7210 | 6070 | 563 | 563 | 7.81% | 9.28% |  |
C | 7210 | 6070 | 1959 | 1959 | 27.17% | 32.27% |  |
D | 7208 | 6068 | 5380 | 5380 | 74.64% | 88.66% |  |
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 | 8 | 43 | 460753 | 2875.69 | 640 | 624 | 160.0 |
A | 6 | 196 | 313244 | 1953.8 | 640 | 624 | 160.0 |
A | 4 | 3 | 250701 | 1562.92 | 640 | 624 | 160.0 |
B | 10 | 128 | 2155783 | 16651.48 | 616 | 595 | 129.4 |
B | 5 | 172 | 364469 | 2811.37 | 616 | 595 | 129.4 |
B | 5 | 185 | 164399 | 1265.59 | 616 | 595 | 129.4 |
C | 15 | 224 | 5065722 | 33536.15 | 540 | 533 | 151.0 |
C | 5 | 80 | 947187 | 6267.71 | 540 | 533 | 151.0 |
C | 13 | 3 | 304430 | 2012.07 | 540 | 533 | 151.0 |
D | 15 | 94 | 8878570 | 99683.37 | 307 | 292 | 89.1 |
D | 6 | 42 | 4131271 | 46381.73 | 307 | 292 | 89.1 |
D | 12 | 3 | 428841 | 4811.65 | 307 | 292 | 89.1 |
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 |  |