Observation information
- date-obs: 2026-01-05
- time-obs: 00:44:40.916500000
- date-end: 2026-01-05
- time-end: 03:07:49.894100000
- obs_id: A14_021T06_9000006538
- exposure: 5632.6257593
- 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_55572cztM0_level2.fits
| modeM0/AS1A14_021T06_9000006538_55572cztM0_level2_quad_clean.evt
|
| Size (bytes) | 604,117,440 | 94,867,200 |
| Size | 576.1 MB
| 90.5 MB
|
| Events in quadrant A | 4,308,479 | 627,102 |
| Events in quadrant B | 3,019,170 | 698,502 |
| Events in quadrant C | 9,969,375 | 491,362 |
| Events in quadrant D | 4,514,708 | 561,307 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 15 | 0 |
| C | 0 | 15 | 0 |
| D | 0 | 15 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18058 | 2 |
| B | 0 | 14633 | 2 |
| C | 0 | 34548 | 15 |
| D | 0 | 18773 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7099 | 277 | 3.901958% |
| B | 7099 | 57 | 0.802930% |
| C | 7097 | 1836 | 25.870086% |
| D | 7100 | 369 | 5.197183% |
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 | 8589 | 7102 | 233 | 233 | 2.71% | 3.28% |  |
| B | 8589 | 7102 | 5 | 5 | 0.06% | 0.07% |  |
| C | 8590 | 7102 | 1831 | 1831 | 21.32% | 25.78% |  |
| D | 8590 | 7103 | 340 | 340 | 3.96% | 4.79% |  |
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 | 12 | 115 | 883767 | 4933.67 | 720 | 702 | 179.0 |
| A | 15 | 32 | 312131 | 1739.95 | 720 | 702 | 179.0 |
| A | 0 | 8 | 114510 | 635.84 | 720 | 702 | 179.0 |
| B | 5 | 172 | 50983 | 323.6 | 721 | 695 | 155.4 |
| B | 10 | 247 | 39310 | 248.48 | 721 | 695 | 155.4 |
| B | 4 | 169 | 24204 | 151.28 | 721 | 695 | 155.4 |
| C | 9 | 38 | 6704335 | 37052.49 | 659 | 650 | 180.9 |
| C | 12 | 252 | 398454 | 2198.73 | 659 | 650 | 180.9 |
| C | 13 | 3 | 78362 | 429.53 | 659 | 650 | 180.9 |
| D | 11 | 129 | 1607625 | 8208.95 | 691 | 660 | 195.8 |
| D | 5 | 173 | 61183 | 309.17 | 691 | 660 | 195.8 |
| D | 2 | 31 | 46968 | 236.56 | 691 | 660 | 195.8 |
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 |  |