Observation information
- date-obs: 2025-10-16
- time-obs: 03:56:31.781900000
- date-end: 2025-10-16
- time-end: 05:15:00.769000000
- obs_id: A14_126T15_9000006516
- exposure: 3423.70731223
- sourceid: FBS1133+754
- observer: sharmila
- ra_pnt: 174.1395
- dec_pnt: 75.11491
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_126T15_9000006516_54371cztM0_level2.fits
| modeM0/AS1A14_126T15_9000006516_54371cztM0_level2_quad_clean.evt
|
| Size (bytes) | 389,053,440 | 64,051,200 |
| Size | 371.0 MB
| 61.1 MB
|
| Events in quadrant A | 2,068,531 | 453,529 |
| Events in quadrant B | 3,363,271 | 466,540 |
| Events in quadrant C | 3,245,729 | 398,743 |
| Events in quadrant D | 5,367,969 | 299,473 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 92 | 0 |
| B | 0 | 92 | 0 |
| C | 0 | 92 | 0 |
| D | 0 | 92 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9615 | 1 |
| B | 0 | 13060 | 1 |
| C | 0 | 12950 | 1 |
| D | 0 | 19321 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1 | 0 |
| B | 0 | 2 | 0 |
| C | 0 | 2 | 0 |
| D | 0 | 2 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4568 | 24 | 0.525394% |
| B | 4568 | 249 | 5.450963% |
| C | 4568 | 347 | 7.596322% |
| D | 4568 | 1186 | 25.963222% |
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 | 4568 | 4568 | 12 | 12 | 0.26% | 0.26% |  |
| B | 4568 | 4568 | 160 | 160 | 3.50% | 3.50% |  |
| C | 4568 | 4568 | 306 | 306 | 6.70% | 6.70% |  |
| D | 4568 | 4568 | 1042 | 1042 | 22.81% | 22.81% |  |
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 | 115 | 103613 | 872.8 | 478 | 467 | 118.2 |
| A | 3 | 14 | 39703 | 332.01 | 478 | 467 | 118.2 |
| A | 15 | 174 | 18590 | 153.35 | 478 | 467 | 118.2 |
| B | 10 | 14 | 896524 | 9014.98 | 463 | 448 | 99.4 |
| B | 7 | 0 | 515763 | 5184.33 | 463 | 448 | 99.4 |
| B | 5 | 185 | 41096 | 408.94 | 463 | 448 | 99.4 |
| C | 1 | 241 | 586568 | 4778.15 | 442 | 437 | 122.7 |
| C | 1 | 29 | 489759 | 3988.97 | 442 | 437 | 122.7 |
| C | 9 | 38 | 114805 | 932.33 | 442 | 437 | 122.7 |
| D | 8 | 176 | 3701571 | 33925.19 | 382 | 364 | 109.1 |
| D | 1 | 3 | 47944 | 436.12 | 382 | 364 | 109.1 |
| D | 3 | 12 | 32577 | 295.26 | 382 | 364 | 109.1 |
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 |  |