Observation information
- date-obs: 2025-07-09
- time-obs: 03:01:52.306800000
- date-end: 2025-07-11
- time-end: 09:35:00.589400000
- obs_id: C09_011T06_9000006484
- exposure: 17042.1524
- 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_9000006484cztM0_level2.fits
| modeM0/AS1C09_011T06_9000006484cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,167,796,800 | 571,363,200 |
| Size | 1.1 GB
| 544.9 MB
|
| Events in quadrant A | 2,480,762 | 159,200 |
| Events in quadrant B | 7,820,328 | 2,114,716 |
| Events in quadrant C | 6,942,056 | 1,646,976 |
| Events in quadrant D | 6,069,852 | 1,445,259 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 218 | 0 |
| B | 0 | 218 | 0 |
| C | 0 | 218 | 0 |
| D | 0 | 218 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1382097 | 0 |
| B | 0 | 446325 | 0 |
| C | 0 | 615445 | 0 |
| D | 0 | 803252 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3544 | 0 |
| B | 0 | 3540 | 0 |
| C | 0 | 3544 | 0 |
| D | 0 | 3542 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 173944 | 164002 | 94.284367% |
| B | 174096 | 10884 | 6.251723% |
| C | 174034 | 38697 | 22.235310% |
| D | 173993 | 49338 | 28.356313% |
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 | 196383 | 164442 | 0 | 0 | 0.00% | 0.00% |  |
| B | 196388 | 173258 | 0 | 0 | 0.00% | 0.00% |  |
| C | 196388 | 162080 | 0 | 0 | 0.00% | 0.00% |  |
| D | 196388 | 172417 | 0 | 0 | 0.00% | 0.00% |  |
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 | 14 | 188 | 2903 | 10.41 | 657 | 611 | 220.1 |
| A | 14 | 204 | 2353 | 7.92 | 657 | 611 | 220.1 |
| A | 14 | 95 | 2133 | 6.92 | 657 | 611 | 220.1 |
| B | 2 | 9 | 9261 | 14.82 | 2082 | 1974 | 491.8 |
| B | 2 | 8 | 8509 | 13.29 | 2082 | 1974 | 491.8 |
| B | 9 | 173 | 6410 | 9.02 | 2082 | 1974 | 491.8 |
| C | 2 | 31 | 5543 | 6.1 | 1860 | 1698 | 630.7 |
| C | 7 | 221 | 5506 | 6.04 | 1860 | 1698 | 630.7 |
| C | 3 | 203 | 5503 | 6.03 | 1860 | 1698 | 630.7 |
| D | 6 | 218 | 7885 | 10.79 | 1745 | 1550 | 587.0 |
| D | 15 | 11 | 6187 | 7.9 | 1745 | 1550 | 587.0 |
| D | 3 | 30 | 5704 | 7.08 | 1745 | 1550 | 587.0 |
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 |  |