Observation information
- date-obs: 2026-02-27
- time-obs: 12:24:51.130900000
- date-end: 2026-02-27
- time-end: 14:29:29.114800000
- obs_id: A14_083T05_9000006554
- exposure: 32.1759322882
- sourceid: NGC1556
- observer: Rakshit
- ra_pnt: 64.43679
- dec_pnt: -50.16444
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_083T05_9000006554_56367cztM0_level2.fits
| modeM0/AS1A14_083T05_9000006554_56367cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,301,590,080 | 67,881,600 |
| Size | 1.2 GB
| 64.7 MB
|
| Events in quadrant A | 15,307,453 | 237,776 |
| Events in quadrant B | 6,802,166 | 661,703 |
| Events in quadrant C | 6,278,485 | 632,398 |
| Events in quadrant D | 19,216,118 | 2,581 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 50520 | 0 |
| B | 0 | 25365 | 0 |
| C | 0 | 23900 | 0 |
| D | 0 | 62378 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7477 | 5169 | 69.132005% |
| B | 7478 | 1200 | 16.047071% |
| C | 7478 | 612 | 8.184006% |
| D | 7477 | 7453 | 99.679016% |
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 | 7477 | 7476 | 4960 | 4960 | 66.34% | 66.35% |  |
| B | 7479 | 7479 | 889 | 889 | 11.89% | 11.89% |  |
| C | 7479 | 7479 | 593 | 593 | 7.93% | 7.93% |  |
| D | 7477 | 7476 | 7178 | 7178 | 96.00% | 96.01% |  |
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 | 3 | 10707550 | 79177.53 | 537 | 524 | 135.2 |
| A | 12 | 194 | 1244710 | 9200.65 | 537 | 524 | 135.2 |
| A | 3 | 62 | 362558 | 2677.21 | 537 | 524 | 135.2 |
| B | 4 | 206 | 3139290 | 19750.2 | 739 | 714 | 158.9 |
| B | 5 | 185 | 136375 | 853.68 | 739 | 714 | 158.9 |
| B | 4 | 21 | 118167 | 739.1 | 739 | 714 | 158.9 |
| C | 15 | 230 | 1053748 | 5103.07 | 750 | 744 | 206.3 |
| C | 13 | 3 | 935686 | 4530.92 | 750 | 744 | 206.3 |
| C | 12 | 252 | 751591 | 3638.76 | 750 | 744 | 206.3 |
| D | 8 | 129 | 17172819 | 222098.04 | 265 | 252 | 77.3 |
| D | 13 | 153 | 264572 | 3418.53 | 265 | 252 | 77.3 |
| D | 2 | 249 | 173063 | 2235.02 | 265 | 252 | 77.3 |
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 |  |