Observation information
- date-obs: 2026-02-15
- time-obs: 12:36:24.480900000
- date-end: 2026-02-15
- time-end: 14:36:10.464100000
- obs_id: A14_083T04_9000006550
- exposure: 5201.07805979
- sourceid: NGC1522
- observer: Rakshit
- ra_pnt: 61.533
- dec_pnt: -52.66842
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_083T04_9000006550_56189cztM0_level2.fits
| modeM0/AS1A14_083T04_9000006550_56189cztM0_level2_quad_clean.evt
|
| Size (bytes) | 579,692,160 | 86,981,760 |
| Size | 552.8 MB
| 83.0 MB
|
| Events in quadrant A | 8,437,706 | 506,010 |
| Events in quadrant B | 4,009,207 | 630,360 |
| Events in quadrant C | 4,142,439 | 548,900 |
| Events in quadrant D | 4,385,143 | 512,881 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 29399 | 1 |
| B | 0 | 16299 | 1 |
| C | 0 | 16946 | 1 |
| D | 0 | 17540 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6241 | 1275 | 20.429418% |
| B | 6241 | 304 | 4.871014% |
| C | 6242 | 341 | 5.462993% |
| D | 6242 | 388 | 6.215956% |
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 | 7186 | 6242 | 1074 | 1074 | 14.95% | 17.21% |  |
| B | 7186 | 6242 | 153 | 153 | 2.13% | 2.45% |  |
| C | 7187 | 6243 | 296 | 296 | 4.12% | 4.74% |  |
| D | 7187 | 6243 | 295 | 295 | 4.10% | 4.73% |  |
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 | 176 | 2524907 | 16472.34 | 615 | 601 | 153.2 |
| A | 15 | 32 | 2102223 | 13714.11 | 615 | 601 | 153.2 |
| A | 7 | 64 | 546006 | 3559.04 | 615 | 601 | 153.2 |
| B | 4 | 171 | 413316 | 2960.71 | 654 | 631 | 139.4 |
| B | 5 | 185 | 252740 | 1808.7 | 654 | 631 | 139.4 |
| B | 1 | 207 | 250032 | 1789.27 | 654 | 631 | 139.4 |
| C | 12 | 254 | 1443084 | 8368.77 | 624 | 616 | 172.4 |
| C | 12 | 252 | 117215 | 676.47 | 624 | 616 | 172.4 |
| C | 6 | 223 | 94695 | 545.82 | 624 | 616 | 172.4 |
| D | 8 | 240 | 517803 | 2897.92 | 626 | 597 | 178.5 |
| D | 2 | 249 | 425509 | 2380.8 | 626 | 597 | 178.5 |
| D | 11 | 129 | 375320 | 2099.59 | 626 | 597 | 178.5 |
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 |  |