Observation information
- date-obs: 2026-03-03
- time-obs: 06:30:59.390600000
- date-end: 2026-03-03
- time-end: 08:37:36.372100000
- obs_id: A14_083T05_9000006554
- exposure: 4643.0006085
- 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_56423cztM0_level2.fits
| modeM0/AS1A14_083T05_9000006554_56423cztM0_level2_quad_clean.evt
|
| Size (bytes) | 972,146,880 | 88,436,160 |
| Size | 927.1 MB
| 84.3 MB
|
| Events in quadrant A | 11,148,601 | 484,031 |
| Events in quadrant B | 6,222,544 | 648,214 |
| Events in quadrant C | 4,763,811 | 633,715 |
| Events in quadrant D | 13,273,092 | 390,791 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 1 | 0 |
| C | 0 | 1 | 0 |
| D | 0 | 1 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 152 | 0 |
| B | 0 | 152 | 0 |
| C | 0 | 152 | 0 |
| D | 0 | 152 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 38334 | 2 |
| B | 0 | 23676 | 2 |
| C | 0 | 19560 | 10 |
| D | 0 | 44631 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7477 | 2593 | 34.679684% |
| B | 7477 | 1258 | 16.824930% |
| C | 7476 | 606 | 8.105939% |
| D | 7477 | 3160 | 42.262940% |
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 | 7596 | 7478 | 2107 | 2107 | 27.74% | 28.18% |  |
| B | 7597 | 7479 | 574 | 574 | 7.56% | 7.67% |  |
| C | 7595 | 7478 | 310 | 310 | 4.08% | 4.15% |  |
| D | 7597 | 7480 | 2908 | 2908 | 38.28% | 38.88% |  |
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 | 4 | 95 | 2891680 | 16160.05 | 716 | 697 | 178.9 |
| A | 12 | 3 | 2854246 | 15950.8 | 716 | 697 | 178.9 |
| A | 3 | 62 | 868186 | 4849.1 | 716 | 697 | 178.9 |
| B | 4 | 206 | 2572595 | 15524.39 | 775 | 747 | 165.7 |
| B | 0 | 63 | 148134 | 889.67 | 775 | 747 | 165.7 |
| B | 8 | 128 | 113288 | 679.33 | 775 | 747 | 165.7 |
| C | 15 | 217 | 638578 | 2942.01 | 797 | 790 | 216.8 |
| C | 12 | 254 | 350754 | 1614.33 | 797 | 790 | 216.8 |
| C | 15 | 147 | 238217 | 1095.21 | 797 | 790 | 216.8 |
| D | 8 | 129 | 7307811 | 37179.09 | 695 | 664 | 196.5 |
| D | 5 | 32 | 944221 | 4800.86 | 695 | 664 | 196.5 |
| D | 3 | 12 | 803790 | 4086.34 | 695 | 664 | 196.5 |
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 |  |