Observation information
- date-obs: 2026-01-04
- time-obs: 07:42:28.530800000
- date-end: 2026-01-04
- time-end: 09:43:37.037100000
- obs_id: A14_021T06_9000006538
- exposure: 5867.7655021
- 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_55562cztM0_level2.fits
| modeM0/AS1A14_021T06_9000006538_55562cztM0_level2_quad_clean.evt
|
| Size (bytes) | 341,493,120 | 90,538,560 |
| Size | 325.7 MB
| 86.3 MB
|
| Events in quadrant A | 3,203,731 | 585,841 |
| Events in quadrant B | 2,626,351 | 640,969 |
| Events in quadrant C | 3,292,040 | 560,746 |
| Events in quadrant D | 3,041,394 | 526,503 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14131 | 18 |
| B | 0 | 12641 | 7 |
| C | 0 | 14176 | 10 |
| D | 0 | 13628 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6123 | 218 | 3.560346% |
| B | 6125 | 71 | 1.159184% |
| C | 6126 | 45 | 0.734574% |
| D | 6128 | 72 | 1.174935% |
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 | 7268 | 6129 | 163 | 163 | 2.24% | 2.66% |  |
| B | 7268 | 6128 | 9 | 9 | 0.12% | 0.15% |  |
| C | 7269 | 6130 | 12 | 12 | 0.17% | 0.20% |  |
| D | 7269 | 6130 | 43 | 43 | 0.59% | 0.70% |  |
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 | 631158 | 3996.77 | 638 | 621 | 157.8 |
| A | 3 | 14 | 45036 | 281.53 | 638 | 621 | 157.8 |
| A | 13 | 254 | 11584 | 69.49 | 638 | 621 | 157.8 |
| B | 4 | 206 | 32252 | 235.74 | 629 | 607 | 134.2 |
| B | 1 | 238 | 21869 | 158.39 | 629 | 607 | 134.2 |
| B | 2 | 249 | 21823 | 158.05 | 629 | 607 | 134.2 |
| C | 9 | 38 | 478178 | 2834.29 | 612 | 606 | 168.5 |
| C | 13 | 3 | 323826 | 1918.25 | 612 | 606 | 168.5 |
| C | 15 | 178 | 49042 | 287.46 | 612 | 606 | 168.5 |
| D | 11 | 129 | 292902 | 1682.44 | 616 | 588 | 173.7 |
| D | 3 | 12 | 73393 | 419.04 | 616 | 588 | 173.7 |
| D | 8 | 160 | 59690 | 340.17 | 616 | 588 | 173.7 |
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 |  |