Observation information
- date-obs: 2025-10-14
- time-obs: 10:29:05.171600000
- date-end: 2025-10-14
- time-end: 12:27:23.154600000
- obs_id: A14_126T15_9000006516
- exposure: 2437.96276861
- 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_54345cztM0_level2.fits
| modeM0/AS1A14_126T15_9000006516_54345cztM0_level2_quad_clean.evt
|
| Size (bytes) | 665,962,560 | 85,199,040 |
| Size | 635.1 MB
| 81.3 MB
|
| Events in quadrant A | 3,150,619 | 639,527 |
| Events in quadrant B | 3,184,052 | 684,602 |
| Events in quadrant C | 4,668,878 | 573,164 |
| Events in quadrant D | 13,123,600 | 212,079 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14454 | 1 |
| B | 0 | 14585 | 1 |
| C | 0 | 18770 | 1 |
| D | 0 | 43607 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6743 | 147 | 2.180039% |
| B | 6743 | 114 | 1.690642% |
| C | 6744 | 456 | 6.761566% |
| D | 6744 | 4463 | 66.177343% |
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 | 7098 | 6744 | 44 | 44 | 0.62% | 0.65% |  |
| B | 7098 | 6744 | 41 | 41 | 0.58% | 0.61% |  |
| C | 7099 | 6745 | 396 | 396 | 5.58% | 5.87% |  |
| D | 7098 | 6743 | 4123 | 4123 | 58.09% | 61.14% |  |
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 | 14 | 168836 | 956.89 | 719 | 702 | 175.7 |
| A | 5 | 243 | 40216 | 224.88 | 719 | 702 | 175.7 |
| A | 4 | 78 | 28722 | 159.47 | 719 | 702 | 175.7 |
| B | 0 | 213 | 137150 | 910.97 | 702 | 676 | 149.8 |
| B | 10 | 247 | 101899 | 675.67 | 702 | 676 | 149.8 |
| B | 5 | 185 | 27485 | 178.95 | 702 | 676 | 149.8 |
| C | 1 | 241 | 798191 | 4353.09 | 672 | 666 | 183.2 |
| C | 5 | 10 | 277558 | 1511.34 | 672 | 666 | 183.2 |
| C | 14 | 254 | 232770 | 1266.88 | 672 | 666 | 183.2 |
| D | 8 | 176 | 10353611 | 89061.63 | 411 | 390 | 116.2 |
| D | 15 | 108 | 907195 | 7800.62 | 411 | 390 | 116.2 |
| D | 3 | 12 | 47153 | 402.27 | 411 | 390 | 116.2 |
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 |  |