Observation information
- date-obs: 2025-12-13
- time-obs: 13:42:41.029500000
- date-end: 2025-12-13
- time-end: 15:44:03.987500000
- obs_id: A14_009T01_9000006534
- exposure: 5950.97769529
- 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_55238cztM0_level2.fits
| modeM0/AS1A14_009T01_9000006534_55238cztM0_level2_quad_clean.evt
|
| Size (bytes) | 473,336,640 | 90,270,720 |
| Size | 451.4 MB
| 86.1 MB
|
| Events in quadrant A | 4,448,633 | 569,847 |
| Events in quadrant B | 3,189,210 | 639,916 |
| Events in quadrant C | 5,099,642 | 542,985 |
| Events in quadrant D | 4,281,819 | 529,835 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18125 | 1 |
| B | 0 | 14331 | 1 |
| C | 0 | 19611 | 1 |
| D | 0 | 17531 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6458 | 540 | 8.361722% |
| B | 6457 | 107 | 1.657116% |
| C | 6457 | 498 | 7.712560% |
| D | 6458 | 334 | 5.171880% |
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 | 7282 | 6457 | 459 | 459 | 6.30% | 7.11% |  |
| B | 7281 | 6457 | 34 | 34 | 0.47% | 0.53% |  |
| C | 7281 | 6457 | 457 | 457 | 6.28% | 7.08% |  |
| D | 7282 | 6458 | 266 | 266 | 3.65% | 4.12% |  |
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 | 0 | 8 | 737808 | 4502.01 | 660 | 643 | 163.7 |
| A | 7 | 14 | 644534 | 3932.37 | 660 | 643 | 163.7 |
| A | 12 | 3 | 329888 | 2010.76 | 660 | 643 | 163.7 |
| B | 2 | 249 | 285230 | 1992.21 | 661 | 635 | 142.9 |
| B | 10 | 245 | 89143 | 619.57 | 661 | 635 | 142.9 |
| B | 0 | 182 | 71768 | 497.94 | 661 | 635 | 142.9 |
| C | 9 | 38 | 1033116 | 5880.73 | 633 | 625 | 175.6 |
| C | 1 | 16 | 529845 | 3014.27 | 633 | 625 | 175.6 |
| C | 13 | 3 | 418317 | 2379.04 | 633 | 625 | 175.6 |
| D | 8 | 160 | 1065788 | 5778.75 | 649 | 620 | 184.3 |
| D | 2 | 249 | 219499 | 1187.46 | 649 | 620 | 184.3 |
| D | 11 | 129 | 180528 | 976.03 | 649 | 620 | 184.3 |
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 |  |