Observation information
- date-obs: 2026-01-08
- time-obs: 10:33:03.239100000
- date-end: 2026-01-08
- time-end: 12:35:52.223000000
- obs_id: A14_021T06_9000006538
- exposure: 4339.02985859
- 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_55623cztM0_level2.fits
| modeM0/AS1A14_021T06_9000006538_55623cztM0_level2_quad_clean.evt
|
| Size (bytes) | 612,832,320 | 88,657,920 |
| Size | 584.4 MB
| 84.6 MB
|
| Events in quadrant A | 9,825,011 | 417,828 |
| Events in quadrant B | 2,907,112 | 679,953 |
| Events in quadrant C | 3,190,724 | 598,483 |
| Events in quadrant D | 6,239,146 | 518,755 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 6 | 0 |
| B | 0 | 6 | 0 |
| C | 0 | 6 | 0 |
| D | 0 | 6 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 33900 | 1 |
| B | 0 | 13939 | 1 |
| C | 0 | 14885 | 1 |
| D | 0 | 23222 | 4 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6734 | 2546 | 37.808138% |
| B | 6734 | 98 | 1.455301% |
| C | 6734 | 103 | 1.529552% |
| D | 6734 | 782 | 11.612712% |
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 | 7369 | 6734 | 2446 | 2446 | 33.19% | 36.32% |  |
| B | 7369 | 6735 | 8 | 8 | 0.11% | 0.12% |  |
| C | 7369 | 6735 | 54 | 54 | 0.73% | 0.80% |  |
| D | 7369 | 6735 | 700 | 700 | 9.50% | 10.39% |  |
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 | 6524904 | 45663.9 | 576 | 562 | 142.9 |
| A | 0 | 8 | 526474 | 3680.86 | 576 | 562 | 142.9 |
| A | 8 | 249 | 204216 | 1425.38 | 576 | 562 | 142.9 |
| B | 10 | 247 | 43496 | 289.87 | 689 | 663 | 147.8 |
| B | 4 | 169 | 33962 | 225.35 | 689 | 663 | 147.8 |
| B | 7 | 252 | 32269 | 213.89 | 689 | 663 | 147.8 |
| C | 13 | 3 | 75775 | 406.18 | 673 | 665 | 184.9 |
| C | 10 | 19 | 63061 | 337.42 | 673 | 665 | 184.9 |
| C | 4 | 192 | 62815 | 336.09 | 673 | 665 | 184.9 |
| D | 11 | 129 | 2889001 | 15243.55 | 657 | 625 | 189.5 |
| D | 8 | 160 | 192051 | 1010.26 | 657 | 625 | 189.5 |
| D | 2 | 31 | 188806 | 993.13 | 657 | 625 | 189.5 |
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 |  |