Observation information
- date-obs: 2025-10-15
- time-obs: 05:25:55.994100000
- date-end: 2025-10-15
- time-end: 07:33:26.973900000
- obs_id: A14_126T15_9000006516
- exposure: 1811.66122818
- 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_54357cztM0_level2.fits
| modeM0/AS1A14_126T15_9000006516_54357cztM0_level2_quad_clean.evt
|
| Size (bytes) | 720,768,960 | 82,304,640 |
| Size | 687.4 MB
| 78.5 MB
|
| Events in quadrant A | 3,398,275 | 648,073 |
| Events in quadrant B | 3,363,965 | 695,019 |
| Events in quadrant C | 5,671,755 | 528,833 |
| Events in quadrant D | 13,736,814 | 163,064 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14920 | 2 |
| B | 0 | 14806 | 2 |
| C | 0 | 21718 | 2 |
| D | 0 | 45279 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6551 | 123 | 1.877576% |
| B | 6551 | 149 | 2.274462% |
| C | 6551 | 1051 | 16.043352% |
| D | 6552 | 4962 | 75.732601% |
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 | 7651 | 6552 | 54 | 54 | 0.71% | 0.82% |  |
| B | 7651 | 6552 | 55 | 55 | 0.72% | 0.84% |  |
| C | 7651 | 6552 | 1048 | 1048 | 13.70% | 16.00% |  |
| D | 7652 | 6553 | 4250 | 4250 | 55.54% | 64.86% |  |
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 | 7 | 206 | 444664 | 2561.79 | 703 | 686 | 173.3 |
| A | 7 | 14 | 72579 | 414.83 | 703 | 686 | 173.3 |
| A | 0 | 8 | 42677 | 242.29 | 703 | 686 | 173.3 |
| B | 7 | 0 | 209492 | 1417.33 | 692 | 668 | 147.3 |
| B | 10 | 247 | 143044 | 966.34 | 692 | 668 | 147.3 |
| B | 0 | 213 | 106116 | 715.7 | 692 | 668 | 147.3 |
| C | 1 | 241 | 2348670 | 13689.07 | 617 | 610 | 171.5 |
| C | 13 | 3 | 217803 | 1266.22 | 617 | 610 | 171.5 |
| C | 13 | 16 | 165293 | 960.09 | 617 | 610 | 171.5 |
| D | 8 | 176 | 11458869 | 115896.92 | 347 | 330 | 98.9 |
| D | 12 | 3 | 217123 | 2192.74 | 347 | 330 | 98.9 |
| D | 15 | 108 | 198076 | 2000.09 | 347 | 330 | 98.9 |
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 |  |