Observation information
- date-obs: 2026-02-13
- time-obs: 17:08:27.848300000
- date-end: 2026-02-13
- time-end: 19:12:34.821000000
- obs_id: A14_083T04_9000006550
- exposure: 3550.79377836
- 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_56162cztM0_level2.fits
| modeM0/AS1A14_083T04_9000006550_56162cztM0_level2_quad_clean.evt
|
| Size (bytes) | 913,498,560 | 87,914,880 |
| Size | 871.2 MB
| 83.8 MB
|
| Events in quadrant A | 12,996,760 | 332,771 |
| Events in quadrant B | 4,855,236 | 724,330 |
| Events in quadrant C | 3,703,587 | 660,147 |
| Events in quadrant D | 11,682,678 | 425,912 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 148 | 0 |
| B | 0 | 148 | 0 |
| C | 0 | 148 | 0 |
| D | 0 | 148 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 43693 | 0 |
| B | 0 | 19628 | 0 |
| C | 0 | 16846 | 0 |
| D | 0 | 39892 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7447 | 4204 | 56.452263% |
| B | 7448 | 371 | 4.981203% |
| C | 7448 | 104 | 1.396348% |
| D | 7448 | 2588 | 34.747583% |
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 | 7447 | 7447 | 3152 | 3152 | 42.33% | 42.33% |  |
| B | 7448 | 7448 | 290 | 290 | 3.89% | 3.89% |  |
| C | 7448 | 7448 | 107 | 107 | 1.44% | 1.44% |  |
| D | 7448 | 7448 | 2638 | 2638 | 35.42% | 35.42% |  |
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 | 12 | 115 | 5292908 | 37912.4 | 559 | 545 | 139.6 |
| A | 9 | 250 | 4347069 | 31136.78 | 559 | 545 | 139.6 |
| A | 15 | 32 | 744644 | 5330.43 | 559 | 545 | 139.6 |
| B | 5 | 185 | 700663 | 4319.81 | 764 | 739 | 162.0 |
| B | 4 | 171 | 276655 | 1702.91 | 764 | 739 | 162.0 |
| B | 10 | 247 | 253917 | 1562.57 | 764 | 739 | 162.0 |
| C | 12 | 252 | 618446 | 3016.73 | 750 | 742 | 204.8 |
| C | 12 | 241 | 99482 | 482.22 | 750 | 742 | 204.8 |
| C | 6 | 223 | 17814 | 83.38 | 750 | 742 | 204.8 |
| D | 8 | 240 | 4636707 | 25777.36 | 627 | 597 | 179.9 |
| D | 8 | 129 | 4033989 | 22426.17 | 627 | 597 | 179.9 |
| D | 2 | 249 | 242355 | 1344.21 | 627 | 597 | 179.9 |
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 |  |