Observation information
- date-obs: 2026-01-02
- time-obs: 19:28:57.347100000
- date-end: 2026-01-12
- time-end: 03:21:54.495100000
- obs_id: A14_021T06_9000006538
- exposure: 89606.325767
- 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_9000006538cztM0_level2.fits
| modeM0/AS1A14_021T06_9000006538cztM0_level2_quad_clean.evt
|
| Size (bytes) | 4,600,895,040 | 2,237,500,800 |
| Size | 4.3 GB
| 2.1 GB
|
| Events in quadrant A | 25,501,908 | 6,227,408 |
| Events in quadrant B | 24,656,443 | 6,887,124 |
| Events in quadrant C | 24,500,180 | 5,850,306 |
| Events in quadrant D | 21,192,614 | 5,339,856 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 770 | 0 |
| B | 0 | 771 | 0 |
| C | 0 | 771 | 0 |
| D | 0 | 771 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 1775943 | 0 |
| B | 0 | 1366455 | 0 |
| C | 0 | 1689949 | 0 |
| D | 0 | 1830813 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12788 | 0 |
| B | 0 | 12784 | 0 |
| C | 0 | 12788 | 0 |
| D | 0 | 12784 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 634346 | 41613 | 6.559985% |
| B | 634279 | 9687 | 1.527246% |
| C | 634344 | 35475 | 5.592392% |
| D | 634324 | 46031 | 7.256702% |
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 | 631164 | 534532 | 0 | 0 | 0.00% | 0.00% |  |
| B | 631164 | 534676 | 0 | 0 | 0.00% | 0.00% |  |
| C | 631164 | 533912 | 0 | 0 | 0.00% | 0.00% |  |
| D | 631164 | 534286 | 0 | 0 | 0.00% | 0.00% |  |
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 | 14 | 188 | 28415 | 9.87 | 6706 | 6178 | 2253.6 |
| A | 9 | 255 | 25872 | 8.74 | 6706 | 6178 | 2253.6 |
| A | 14 | 204 | 23501 | 7.69 | 6706 | 6178 | 2253.6 |
| B | 2 | 9 | 28596 | 14.91 | 6508 | 6166 | 1504.8 |
| B | 2 | 8 | 25931 | 13.13 | 6508 | 6166 | 1504.8 |
| B | 3 | 25 | 20396 | 9.46 | 6508 | 6166 | 1504.8 |
| C | 15 | 175 | 20222 | 6.31 | 6539 | 5954 | 2262.5 |
| C | 15 | 127 | 19480 | 5.98 | 6539 | 5954 | 2262.5 |
| C | 2 | 31 | 19375 | 5.93 | 6539 | 5954 | 2262.5 |
| D | 6 | 218 | 27015 | 10.52 | 6051 | 5353 | 2059.3 |
| D | 15 | 11 | 20220 | 7.22 | 6051 | 5353 | 2059.3 |
| D | 3 | 30 | 19973 | 7.1 | 6051 | 5353 | 2059.3 |
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 |  |