Observation information
- date-obs: 2025-08-16
- time-obs: 05:30:22.424300000
- date-end: 2025-08-16
- time-end: 07:34:44.402100000
- obs_id: A14_002T06_9000006496
- exposure: 3323.25820899
- sourceid: M31 Field No. 8
- observer: dleahy
- ra_pnt: 11.36333
- dec_pnt: 41.88303
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_002T06_9000006496_53465cztM0_level2.fits
| modeM0/AS1A14_002T06_9000006496_53465cztM0_level2_quad_clean.evt
|
| Size (bytes) | 706,129,920 | 83,995,200 |
| Size | 673.4 MB
| 80.1 MB
|
| Events in quadrant A | 5,914,012 | 546,244 |
| Events in quadrant B | 3,277,478 | 676,786 |
| Events in quadrant C | 12,312,441 | 300,803 |
| Events in quadrant D | 4,116,987 | 554,465 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| 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 | 22379 | 1 |
| B | 0 | 14470 | 1 |
| C | 0 | 41116 | 1 |
| D | 0 | 17055 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6673 | 1036 | 15.525251% |
| B | 6673 | 111 | 1.663420% |
| C | 6672 | 3520 | 52.757794% |
| D | 6672 | 211 | 3.162470% |
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 | 7463 | 6673 | 762 | 762 | 10.21% | 11.42% |  |
| B | 7463 | 6674 | 19 | 19 | 0.25% | 0.28% |  |
| C | 7462 | 6672 | 3304 | 3304 | 44.28% | 49.52% |  |
| D | 7462 | 6673 | 171 | 171 | 2.29% | 2.56% |  |
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 | 1584720 | 9777.76 | 660 | 645 | 162.0 |
| A | 3 | 63 | 1354451 | 8356.42 | 660 | 645 | 162.0 |
| A | 3 | 62 | 214919 | 1322.61 | 660 | 645 | 162.0 |
| B | 2 | 249 | 93295 | 610.54 | 705 | 679 | 151.7 |
| B | 10 | 254 | 92611 | 606.03 | 705 | 679 | 151.7 |
| B | 10 | 28 | 73660 | 481.1 | 705 | 679 | 151.7 |
| C | 1 | 241 | 8040353 | 60422.54 | 482 | 478 | 133.1 |
| C | 15 | 224 | 902039 | 6775.55 | 482 | 478 | 133.1 |
| C | 4 | 5 | 438444 | 3291.47 | 482 | 478 | 133.1 |
| D | 3 | 12 | 639312 | 3374.48 | 679 | 651 | 189.3 |
| D | 8 | 176 | 399807 | 2109.01 | 679 | 651 | 189.3 |
| D | 2 | 249 | 96254 | 505.14 | 679 | 651 | 189.3 |
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 |  |