Observation information
- date-obs: 2026-02-14
- time-obs: 20:40:47.617100000
- date-end: 2026-02-15
- time-end: 02:26:23.568300000
- obs_id: A14_083T04_9000006550
- exposure: 13254.6448661
- 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_56181cztM0_level2.fits
| modeM0/AS1A14_083T04_9000006550_56181cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,818,725,760 | 208,100,160 |
| Size | 1.7 GB
| 198.5 MB
|
| Events in quadrant A | 28,916,269 | 915,659 |
| Events in quadrant B | 10,876,902 | 1,503,629 |
| Events in quadrant C | 15,992,917 | 1,279,242 |
| Events in quadrant D | 10,011,069 | 1,239,407 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 400 | 0 |
| B | 0 | 400 | 0 |
| C | 0 | 400 | 0 |
| D | 0 | 400 | 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 | 99610 | 2 |
| B | 0 | 46282 | 2 |
| C | 0 | 61948 | 2 |
| D | 0 | 44524 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 19747 | 7296 | 36.947384% |
| B | 19746 | 651 | 3.296870% |
| C | 19746 | 2018 | 10.219791% |
| D | 19746 | 285 | 1.443330% |
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 | 21017 | 19961 | 5562 | 5562 | 26.46% | 27.86% |  |
| B | 21016 | 20027 | 218 | 218 | 1.04% | 1.09% |  |
| C | 21016 | 20028 | 1613 | 1613 | 7.68% | 8.05% |  |
| D | 21016 | 20027 | 132 | 132 | 0.63% | 0.66% |  |
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 | 15 | 32 | 9154990 | 20621.29 | 1786 | 1741 | 443.9 |
| A | 0 | 212 | 7073250 | 15931.35 | 1786 | 1741 | 443.9 |
| A | 7 | 64 | 2077806 | 4677.15 | 1786 | 1741 | 443.9 |
| B | 5 | 172 | 772561 | 1735.48 | 2092 | 2016 | 444.0 |
| B | 5 | 185 | 484053 | 1085.68 | 2092 | 2016 | 444.0 |
| B | 4 | 171 | 398452 | 892.88 | 2092 | 2016 | 444.0 |
| C | 13 | 3 | 3119588 | 5772.61 | 1995 | 1976 | 540.1 |
| C | 12 | 254 | 2930290 | 5422.1 | 1995 | 1976 | 540.1 |
| C | 12 | 252 | 1334786 | 2467.85 | 1995 | 1976 | 540.1 |
| D | 2 | 249 | 295114 | 510.89 | 2048 | 1956 | 573.8 |
| D | 8 | 129 | 289252 | 500.67 | 2048 | 1956 | 573.8 |
| D | 6 | 239 | 277081 | 479.46 | 2048 | 1956 | 573.8 |
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 |  |