Observation information
- date-obs: 2026-03-01
- time-obs: 04:14:43.802700000
- date-end: 2026-03-01
- time-end: 06:19:10.786700000
- obs_id: A14_083T05_9000006554
- exposure: 16.0953447223
- 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_56392cztM0_level2.fits
| modeM0/AS1A14_083T05_9000006554_56392cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,054,324,800 | 59,659,200 |
| Size | 1005.5 MB
| 56.9 MB
|
| Events in quadrant A | 15,661,703 | 116,122 |
| Events in quadrant B | 5,055,119 | 643,829 |
| Events in quadrant C | 3,288,272 | 593,978 |
| Events in quadrant D | 14,522,081 | 1,381 |
Level1 data integrity
| 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 SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 50783 | 1 |
| B | 0 | 19418 | 1 |
| C | 0 | 14530 | 2 |
| D | 0 | 47602 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6467 | 5466 | 84.521416% |
| B | 6467 | 559 | 8.643884% |
| C | 6466 | 154 | 2.381689% |
| D | 6467 | 6456 | 99.829906% |
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 | 7467 | 6468 | 5064 | 5064 | 67.82% | 78.29% |  |
| B | 7467 | 6468 | 238 | 238 | 3.19% | 3.68% |  |
| C | 7466 | 6467 | 37 | 37 | 0.50% | 0.57% |  |
| D | 7466 | 6466 | 4658 | 4658 | 62.39% | 72.04% |  |
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 | 9962034 | 113971.82 | 348 | 338 | 87.4 |
| A | 4 | 95 | 2228538 | 25492.85 | 348 | 338 | 87.4 |
| A | 12 | 194 | 1178113 | 13474.93 | 348 | 338 | 87.4 |
| B | 4 | 206 | 1178624 | 8013.93 | 691 | 667 | 147.0 |
| B | 5 | 172 | 798417 | 5427.28 | 691 | 667 | 147.0 |
| B | 0 | 63 | 73923 | 498.38 | 691 | 667 | 147.0 |
| C | 15 | 230 | 130202 | 685.1 | 698 | 689 | 189.0 |
| C | 12 | 254 | 98981 | 519.95 | 698 | 689 | 189.0 |
| C | 6 | 9 | 98485 | 517.33 | 698 | 689 | 189.0 |
| D | 8 | 129 | 12734520 | 347926.82 | 118 | 112 | 36.6 |
| D | 5 | 32 | 571112 | 15600.74 | 118 | 112 | 36.6 |
| D | 2 | 33 | 378781 | 10345.91 | 118 | 112 | 36.6 |
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 |  |