Observation information
- date-obs: 2026-01-04
- time-obs: 02:33:06.990800000
- date-end: 2026-01-04
- time-end: 04:32:59.080700000
- obs_id: A14_021T06_9000006538
- exposure: 6131.1884613
- 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_55558cztM0_level2.fits
| modeM0/AS1A14_021T06_9000006538_55558cztM0_level2_quad_clean.evt
|
| Size (bytes) | 357,937,920 | 88,966,080 |
| Size | 341.4 MB
| 84.8 MB
|
| Events in quadrant A | 2,597,637 | 575,516 |
| Events in quadrant B | 2,641,373 | 616,075 |
| Events in quadrant C | 3,419,949 | 546,545 |
| Events in quadrant D | 4,098,141 | 514,571 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12813 | 1 |
| B | 0 | 13001 | 1 |
| C | 0 | 14785 | 1 |
| D | 0 | 17031 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6322 | 32 | 0.506169% |
| B | 6322 | 69 | 1.091427% |
| C | 6322 | 143 | 2.261942% |
| D | 6322 | 164 | 2.594116% |
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 | 7193 | 6323 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7193 | 6322 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7193 | 6322 | 104 | 104 | 1.45% | 1.65% |  |
| D | 7193 | 6322 | 180 | 180 | 2.50% | 2.85% |  |
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 | 4 | 159 | 27309 | 168.22 | 642 | 627 | 158.6 |
| A | 4 | 3 | 21375 | 130.81 | 642 | 627 | 158.6 |
| A | 0 | 8 | 17003 | 103.24 | 642 | 627 | 158.6 |
| B | 7 | 252 | 60828 | 441.62 | 635 | 614 | 136.3 |
| B | 10 | 247 | 17473 | 123.65 | 635 | 614 | 136.3 |
| B | 12 | 111 | 16827 | 118.91 | 635 | 614 | 136.3 |
| C | 9 | 38 | 373534 | 2182.63 | 618 | 612 | 170.9 |
| C | 13 | 3 | 249193 | 1454.89 | 618 | 612 | 170.9 |
| C | 15 | 199 | 231965 | 1354.06 | 618 | 612 | 170.9 |
| D | 8 | 245 | 746162 | 4243.35 | 613 | 586 | 175.7 |
| D | 11 | 129 | 503480 | 2862.16 | 613 | 586 | 175.7 |
| D | 2 | 172 | 270759 | 1537.65 | 613 | 586 | 175.7 |
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 |  |