Observation information
- date-obs: 2026-01-07
- time-obs: 08:28:17.454700000
- date-end: 2026-01-07
- time-end: 10:33:38.439100000
- obs_id: A14_021T06_9000006538
- exposure: 5715.70646602
- 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_55607cztM0_level2.fits
| modeM0/AS1A14_021T06_9000006538_55607cztM0_level2_quad_clean.evt
|
| Size (bytes) | 468,322,560 | 92,252,160 |
| Size | 446.6 MB
| 88.0 MB
|
| Events in quadrant A | 3,508,976 | 617,663 |
| Events in quadrant B | 2,928,623 | 666,549 |
| Events in quadrant C | 3,773,229 | 568,229 |
| Events in quadrant D | 6,618,802 | 486,984 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 10 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14653 | 1 |
| B | 0 | 13658 | 1 |
| C | 0 | 16396 | 1 |
| D | 0 | 24214 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6506 | 121 | 1.859822% |
| B | 6507 | 125 | 1.921008% |
| C | 6507 | 317 | 4.871677% |
| D | 6507 | 919 | 14.123252% |
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 | 7521 | 6507 | 3 | 3 | 0.04% | 0.05% |  |
| B | 7522 | 6508 | 19 | 19 | 0.25% | 0.29% |  |
| C | 7522 | 6508 | 203 | 203 | 2.70% | 3.12% |  |
| D | 7522 | 6508 | 1000 | 1000 | 13.29% | 15.37% |  |
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 | 3 | 14 | 357392 | 2117.23 | 680 | 663 | 168.5 |
| A | 8 | 249 | 179067 | 1058.85 | 680 | 663 | 168.5 |
| A | 12 | 115 | 143133 | 845.58 | 680 | 663 | 168.5 |
| B | 5 | 185 | 85066 | 592.87 | 669 | 643 | 142.4 |
| B | 7 | 252 | 39456 | 272.57 | 669 | 643 | 142.4 |
| B | 0 | 199 | 37749 | 260.58 | 669 | 643 | 142.4 |
| C | 13 | 3 | 933784 | 5296.01 | 642 | 635 | 176.2 |
| C | 10 | 19 | 123283 | 696.08 | 642 | 635 | 176.2 |
| C | 6 | 223 | 72447 | 407.56 | 642 | 635 | 176.2 |
| D | 11 | 129 | 2942409 | 16412.14 | 635 | 606 | 179.2 |
| D | 8 | 160 | 327604 | 1824.3 | 635 | 606 | 179.2 |
| D | 15 | 125 | 237346 | 1320.76 | 635 | 606 | 179.2 |
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 |  |