Observation information
- date-obs: 2026-01-07
- time-obs: 01:11:28.519500000
- date-end: 2026-01-07
- time-end: 03:40:37.497200000
- obs_id: A14_021T06_9000006538
- exposure: 6952.50187111
- sourceid: GALEX J223113.0+822656
- observer: avdeeva_as
- ra_pnt: 337.8043
- dec_pnt: 82.4491
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A14_021T06_9000006538_55603cztM0_level2.fits
| modeM0/AS1A14_021T06_9000006538_55603cztM0_level2_quad_clean.evt
|
| Size (bytes) | 429,586,560 | 101,928,960 |
| Size | 409.7 MB
| 97.2 MB
|
| Events in quadrant A | 4,376,941 | 658,846 |
| Events in quadrant B | 3,384,204 | 708,657 |
| Events in quadrant C | 3,437,729 | 627,520 |
| Events in quadrant D | 4,145,330 | 592,388 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18010 | 3 |
| B | 0 | 15599 | 2 |
| C | 0 | 15837 | 2 |
| D | 0 | 17903 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 146 | 0 |
| B | 0 | 146 | 0 |
| C | 0 | 146 | 0 |
| D | 0 | 146 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7169 | 110 | 1.534384% |
| B | 7169 | 130 | 1.813363% |
| C | 7169 | 127 | 1.771516% |
| D | 7169 | 117 | 1.632027% |
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 | 8949 | 7170 | 54 | 54 | 0.60% | 0.75% |  |
| B | 8949 | 7171 | 52 | 52 | 0.58% | 0.73% |  |
| C | 8949 | 7171 | 79 | 79 | 0.88% | 1.10% |  |
| D | 8949 | 7171 | 121 | 121 | 1.35% | 1.69% |  |
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 | 8 | 249 | 536421 | 2928.13 | 735 | 716 | 183.0 |
| A | 3 | 14 | 474679 | 2590.66 | 735 | 716 | 183.0 |
| A | 4 | 159 | 360958 | 1969.06 | 735 | 716 | 183.0 |
| B | 5 | 236 | 254039 | 1618.99 | 731 | 704 | 156.5 |
| B | 7 | 0 | 84525 | 535.68 | 731 | 704 | 156.5 |
| B | 5 | 185 | 63656 | 402.31 | 731 | 704 | 156.5 |
| C | 15 | 178 | 207665 | 1051.05 | 718 | 710 | 196.9 |
| C | 13 | 3 | 143926 | 727.34 | 718 | 710 | 196.9 |
| C | 15 | 200 | 72995 | 367.11 | 718 | 710 | 196.9 |
| D | 8 | 160 | 508561 | 2510.68 | 712 | 679 | 202.3 |
| D | 2 | 153 | 293276 | 1446.43 | 712 | 679 | 202.3 |
| D | 11 | 129 | 224110 | 1104.51 | 712 | 679 | 202.3 |
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 |  |