Observation information
- date-obs: 2026-01-06
- time-obs: 13:25:54.612800000
- date-end: 2026-01-06
- time-end: 15:31:55.596700000
- obs_id: A14_021T06_9000006538
- exposure: 5331.43783218
- 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_55595cztM0_level2.fits
| modeM0/AS1A14_021T06_9000006538_55595cztM0_level2_quad_clean.evt
|
| Size (bytes) | 626,232,960 | 101,206,080 |
| Size | 597.2 MB
| 96.5 MB
|
| Events in quadrant A | 3,936,012 | 702,921 |
| Events in quadrant B | 3,565,953 | 752,218 |
| Events in quadrant C | 10,737,813 | 469,814 |
| Events in quadrant D | 4,354,138 | 612,932 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17465 | 0 |
| B | 0 | 16498 | 0 |
| C | 0 | 37164 | 5 |
| D | 0 | 18652 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 152 | 0 |
| B | 0 | 152 | 0 |
| C | 0 | 152 | 0 |
| D | 0 | 152 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7561 | 154 | 2.036768% |
| B | 7562 | 144 | 1.904258% |
| C | 7561 | 2459 | 32.522153% |
| D | 7561 | 301 | 3.980955% |
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 | 7561 | 7561 | 94 | 94 | 1.24% | 1.24% |  |
| B | 7562 | 7562 | 37 | 37 | 0.49% | 0.49% |  |
| C | 7561 | 7561 | 2132 | 2132 | 28.20% | 28.20% |  |
| D | 7561 | 7561 | 219 | 219 | 2.90% | 2.90% |  |
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 | 536846 | 2755.32 | 796 | 774 | 194.6 |
| A | 8 | 249 | 175092 | 895.96 | 796 | 774 | 194.6 |
| A | 15 | 32 | 44599 | 225.25 | 796 | 774 | 194.6 |
| B | 0 | 171 | 220386 | 1322.03 | 782 | 752 | 166.1 |
| B | 1 | 159 | 86062 | 513.5 | 782 | 752 | 166.1 |
| B | 4 | 169 | 40922 | 241.79 | 782 | 752 | 166.1 |
| C | 9 | 38 | 7728600 | 41201.42 | 689 | 681 | 187.6 |
| C | 13 | 3 | 78617 | 415.51 | 689 | 681 | 187.6 |
| C | 6 | 223 | 69985 | 369.49 | 689 | 681 | 187.6 |
| D | 2 | 249 | 540077 | 2492.34 | 772 | 738 | 216.4 |
| D | 10 | 181 | 181750 | 836.48 | 772 | 738 | 216.4 |
| D | 15 | 125 | 112120 | 514.71 | 772 | 738 | 216.4 |
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 |  |