Observation information
- date-obs: 2025-12-14
- time-obs: 12:12:37.833100000
- date-end: 2025-12-14
- time-end: 14:18:21.816400000
- obs_id: A14_009T01_9000006534
- exposure: 6026.14397156
- sourceid: M31N 2008-12a
- observer: Judhajeet
- ra_pnt: 11.37
- dec_pnt: 41.90281
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_009T01_9000006534_55252cztM0_level2.fits
| modeM0/AS1A14_009T01_9000006534_55252cztM0_level2_quad_clean.evt
|
| Size (bytes) | 455,549,760 | 94,536,000 |
| Size | 434.4 MB
| 90.2 MB
|
| Events in quadrant A | 3,435,282 | 621,924 |
| Events in quadrant B | 4,620,237 | 610,115 |
| Events in quadrant C | 3,442,034 | 597,859 |
| Events in quadrant D | 4,836,456 | 558,277 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15340 | 1 |
| B | 0 | 18942 | 1 |
| C | 0 | 15442 | 1 |
| D | 0 | 18687 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6799 | 157 | 2.309163% |
| B | 6799 | 726 | 10.678041% |
| C | 6800 | 150 | 2.205882% |
| D | 6800 | 211 | 3.102941% |
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 | 7544 | 6800 | 99 | 99 | 1.31% | 1.46% |  |
| B | 7544 | 6800 | 502 | 502 | 6.65% | 7.38% |  |
| C | 7545 | 6801 | 106 | 106 | 1.40% | 1.56% |  |
| D | 7545 | 6801 | 156 | 156 | 2.07% | 2.29% |  |
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 | 3 | 62 | 329795 | 1870.42 | 708 | 689 | 176.0 |
| A | 0 | 8 | 229951 | 1302.97 | 708 | 689 | 176.0 |
| A | 3 | 45 | 33325 | 185.48 | 708 | 689 | 176.0 |
| B | 5 | 185 | 1293648 | 9088.02 | 660 | 635 | 142.3 |
| B | 2 | 249 | 579335 | 4067.43 | 660 | 635 | 142.3 |
| B | 0 | 182 | 39488 | 273.08 | 660 | 635 | 142.3 |
| C | 13 | 3 | 324150 | 1711.27 | 688 | 681 | 189.0 |
| C | 14 | 254 | 210597 | 1110.53 | 688 | 681 | 189.0 |
| C | 15 | 193 | 64102 | 335.52 | 688 | 681 | 189.0 |
| D | 5 | 38 | 1158475 | 5964.77 | 688 | 660 | 194.1 |
| D | 2 | 249 | 359127 | 1846.73 | 688 | 660 | 194.1 |
| D | 2 | 31 | 135951 | 696.98 | 688 | 660 | 194.1 |
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 |  |