Observation information
- date-obs: 2025-12-15
- time-obs: 22:24:35.566600000
- date-end: 2025-12-16
- time-end: 00:53:47.533800000
- obs_id: A14_009T01_9000006534
- exposure: 5483.78221452
- 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_55274cztM0_level2.fits
| modeM0/AS1A14_009T01_9000006534_55274cztM0_level2_quad_clean.evt
|
| Size (bytes) | 596,744,640 | 95,895,360 |
| Size | 569.1 MB
| 91.5 MB
|
| Events in quadrant A | 9,084,885 | 523,808 |
| Events in quadrant B | 4,460,470 | 665,939 |
| Events in quadrant C | 3,657,938 | 633,821 |
| Events in quadrant D | 4,341,707 | 590,567 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 31844 | 2 |
| B | 0 | 18450 | 2 |
| C | 0 | 16112 | 2 |
| D | 0 | 18052 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19 | 0 |
| B | 0 | 19 | 0 |
| C | 0 | 19 | 0 |
| D | 0 | 19 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7022 | 1654 | 23.554543% |
| B | 7023 | 469 | 6.678058% |
| C | 7023 | 89 | 1.267265% |
| D | 7023 | 183 | 2.605724% |
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 | 8952 | 7024 | 1629 | 1629 | 18.20% | 23.19% |  |
| B | 8953 | 7025 | 306 | 306 | 3.42% | 4.36% |  |
| C | 8953 | 7025 | 44 | 44 | 0.49% | 0.63% |  |
| D | 8953 | 7025 | 133 | 133 | 1.49% | 1.89% |  |
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 | 5942668 | 35224.17 | 689 | 673 | 168.7 |
| A | 7 | 7 | 145218 | 856.86 | 689 | 673 | 168.7 |
| A | 3 | 14 | 106592 | 627.89 | 689 | 673 | 168.7 |
| B | 5 | 185 | 1218870 | 7892.4 | 715 | 687 | 154.3 |
| B | 4 | 81 | 86431 | 555.52 | 715 | 687 | 154.3 |
| B | 0 | 199 | 74428 | 477.76 | 715 | 687 | 154.3 |
| C | 13 | 3 | 274614 | 1367.79 | 730 | 721 | 200.2 |
| C | 15 | 147 | 180095 | 895.77 | 730 | 721 | 200.2 |
| C | 14 | 254 | 100955 | 500.56 | 730 | 721 | 200.2 |
| D | 11 | 129 | 963536 | 4783.02 | 715 | 685 | 201.3 |
| D | 7 | 129 | 100037 | 493.54 | 715 | 685 | 201.3 |
| D | 11 | 176 | 95462 | 470.81 | 715 | 685 | 201.3 |
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 |  |