Observation information
- date-obs: 2026-01-03
- time-obs: 07:26:37.252800000
- date-end: 2026-01-03
- time-end: 09:27:13.235900000
- obs_id: A14_021T06_9000006538
- exposure: 4916.55174941
- 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_55547cztM0_level2.fits
| modeM0/AS1A14_021T06_9000006538_55547cztM0_level2_quad_clean.evt
|
| Size (bytes) | 443,436,480 | 87,220,800 |
| Size | 422.9 MB
| 83.2 MB
|
| Events in quadrant A | 2,859,360 | 592,484 |
| Events in quadrant B | 2,994,459 | 639,029 |
| Events in quadrant C | 3,110,725 | 556,237 |
| Events in quadrant D | 6,970,991 | 424,094 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13192 | 1 |
| B | 0 | 13328 | 1 |
| C | 0 | 14025 | 1 |
| D | 0 | 25165 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6151 | 118 | 1.918387% |
| B | 6152 | 100 | 1.625488% |
| C | 6152 | 121 | 1.966840% |
| D | 6152 | 1414 | 22.984395% |
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 | 7236 | 6151 | 33 | 33 | 0.46% | 0.54% |  |
| B | 7237 | 6153 | 16 | 16 | 0.22% | 0.26% |  |
| C | 7237 | 6152 | 72 | 72 | 0.99% | 1.17% |  |
| D | 7237 | 6152 | 1262 | 1262 | 17.44% | 20.51% |  |
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 | 251200 | 1566.33 | 646 | 629 | 160.0 |
| A | 4 | 239 | 29793 | 182.31 | 646 | 629 | 160.0 |
| A | 15 | 32 | 20433 | 123.8 | 646 | 629 | 160.0 |
| B | 4 | 206 | 275399 | 2014.43 | 636 | 613 | 136.4 |
| B | 10 | 247 | 80198 | 583.43 | 636 | 613 | 136.4 |
| B | 4 | 169 | 52848 | 382.93 | 636 | 613 | 136.4 |
| C | 13 | 3 | 235028 | 1372.33 | 617 | 610 | 170.8 |
| C | 9 | 38 | 205555 | 1199.79 | 617 | 610 | 170.8 |
| C | 12 | 252 | 78330 | 454.99 | 617 | 610 | 170.8 |
| D | 11 | 129 | 4322921 | 27069.26 | 564 | 537 | 159.7 |
| D | 6 | 239 | 116046 | 723.38 | 564 | 537 | 159.7 |
| D | 8 | 160 | 74828 | 465.25 | 564 | 537 | 159.7 |
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 |  |