Observation information
- date-obs: 2026-02-13
- time-obs: 10:10:11.905400000
- date-end: 2026-02-13
- time-end: 12:21:37.886900000
- obs_id: A14_083T04_9000006550
- exposure: 5362.31708753
- 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_56158cztM0_level2.fits
| modeM0/AS1A14_083T04_9000006550_56158cztM0_level2_quad_clean.evt
|
| Size (bytes) | 601,470,720 | 97,387,200 |
| Size | 573.6 MB
| 92.9 MB
|
| Events in quadrant A | 5,965,295 | 625,165 |
| Events in quadrant B | 4,787,182 | 711,597 |
| Events in quadrant C | 3,041,006 | 655,288 |
| Events in quadrant D | 7,946,596 | 485,516 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 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 | 22210 | 4 |
| B | 0 | 18915 | 1 |
| C | 0 | 14043 | 1 |
| D | 0 | 28315 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6760 | 783 | 11.582840% |
| B | 6760 | 400 | 5.917160% |
| C | 6760 | 92 | 1.360947% |
| D | 6761 | 1528 | 22.600207% |
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 | 7885 | 6761 | 695 | 695 | 8.81% | 10.28% |  |
| B | 7885 | 6761 | 136 | 136 | 1.72% | 2.01% |  |
| C | 7885 | 6761 | 7 | 7 | 0.09% | 0.10% |  |
| D | 7886 | 6762 | 1344 | 1344 | 17.04% | 19.88% |  |
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 | 15 | 32 | 1836435 | 10275.33 | 728 | 712 | 178.7 |
| A | 0 | 8 | 499886 | 2794.09 | 728 | 712 | 178.7 |
| A | 3 | 14 | 292678 | 1634.26 | 728 | 712 | 178.7 |
| B | 5 | 172 | 881558 | 5641.74 | 733 | 706 | 156.1 |
| B | 5 | 185 | 586137 | 3749.6 | 733 | 706 | 156.1 |
| B | 10 | 247 | 120538 | 767.51 | 733 | 706 | 156.1 |
| C | 12 | 252 | 92154 | 459.69 | 730 | 721 | 198.9 |
| C | 6 | 223 | 36881 | 181.8 | 730 | 721 | 198.9 |
| C | 15 | 230 | 28080 | 137.55 | 730 | 721 | 198.9 |
| D | 8 | 240 | 2569223 | 13794.96 | 657 | 627 | 186.2 |
| D | 2 | 62 | 1311116 | 7038.14 | 657 | 627 | 186.2 |
| D | 11 | 129 | 458657 | 2459.91 | 657 | 627 | 186.2 |
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 |  |