Observation information
- date-obs: 2025-10-13
- time-obs: 03:18:37.461700000
- date-end: 2025-10-13
- time-end: 05:14:22.443300000
- obs_id: A14_126T15_9000006516
- exposure: 2938.53537279
- 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_54326cztM0_level2.fits
| modeM0/AS1A14_126T15_9000006516_54326cztM0_level2_quad_clean.evt
|
| Size (bytes) | 667,100,160 | 74,283,840 |
| Size | 636.2 MB
| 70.8 MB
|
| Events in quadrant A | 2,601,622 | 567,713 |
| Events in quadrant B | 2,674,526 | 605,627 |
| Events in quadrant C | 8,200,526 | 414,243 |
| Events in quadrant D | 10,766,977 | 256,055 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 116 | 0 |
| B | 0 | 116 | 0 |
| C | 0 | 116 | 0 |
| D | 0 | 116 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12105 | 1 |
| B | 0 | 12288 | 1 |
| C | 0 | 28625 | 1 |
| D | 0 | 36011 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5805 | 15 | 0.258398% |
| B | 5805 | 32 | 0.551249% |
| C | 5805 | 1622 | 27.941430% |
| D | 5806 | 3072 | 52.910782% |
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 | 6945 | 5806 | 1 | 1 | 0.01% | 0.02% |  |
| B | 6945 | 5806 | 3 | 3 | 0.04% | 0.05% |  |
| C | 6945 | 5805 | 1579 | 1579 | 22.74% | 27.20% |  |
| D | 6946 | 5807 | 2863 | 2863 | 41.22% | 49.30% |  |
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 | 15 | 174 | 84860 | 562.31 | 607 | 594 | 149.9 |
| A | 7 | 29 | 33661 | 220.66 | 607 | 594 | 149.9 |
| A | 4 | 3 | 28669 | 187.35 | 607 | 594 | 149.9 |
| B | 7 | 0 | 80391 | 614.09 | 602 | 579 | 130.0 |
| B | 10 | 247 | 69211 | 528.07 | 602 | 579 | 130.0 |
| B | 0 | 171 | 36213 | 274.17 | 602 | 579 | 130.0 |
| C | 1 | 16 | 3442483 | 24235.36 | 513 | 506 | 142.0 |
| C | 1 | 241 | 2272094 | 15994.51 | 513 | 506 | 142.0 |
| C | 13 | 3 | 219816 | 1544.19 | 513 | 506 | 142.0 |
| D | 8 | 176 | 7492587 | 61723.95 | 420 | 399 | 121.4 |
| D | 3 | 12 | 861636 | 7095.25 | 420 | 399 | 121.4 |
| D | 15 | 108 | 468840 | 3859.22 | 420 | 399 | 121.4 |
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 |  |