Observation information
- date-obs: 2026-01-10
- time-obs: 23:07:53.734000000
- date-end: 2026-01-11
- time-end: 01:22:22.713500000
- obs_id: A14_021T06_9000006538
- exposure: 6102.20354354
- 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_55661cztM0_level2.fits
| modeM0/AS1A14_021T06_9000006538_55661cztM0_level2_quad_clean.evt
|
| Size (bytes) | 519,272,640 | 116,570,880 |
| Size | 495.2 MB
| 111.2 MB
|
| Events in quadrant A | 4,347,345 | 799,600 |
| Events in quadrant B | 3,138,293 | 816,407 |
| Events in quadrant C | 4,185,242 | 732,196 |
| Events in quadrant D | 7,012,765 | 699,221 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18068 | 2 |
| B | 0 | 14805 | 2 |
| C | 0 | 17844 | 2 |
| D | 0 | 25760 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6930 | 214 | 3.088023% |
| B | 6930 | 64 | 0.923521% |
| C | 6930 | 372 | 5.367965% |
| D | 6930 | 927 | 13.376623% |
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 | 7900 | 6931 | 119 | 119 | 1.51% | 1.72% |  |
| B | 7900 | 6931 | 4 | 4 | 0.05% | 0.06% |  |
| C | 7900 | 6930 | 220 | 220 | 2.78% | 3.17% |  |
| D | 7900 | 6931 | 951 | 951 | 12.04% | 13.72% |  |
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 | 455837 | 2199.45 | 777 | 760 | 206.9 |
| A | 8 | 249 | 334605 | 1613.52 | 777 | 760 | 206.9 |
| A | 15 | 32 | 265629 | 1280.15 | 777 | 760 | 206.9 |
| B | 7 | 252 | 85674 | 518.12 | 751 | 725 | 164.0 |
| B | 5 | 172 | 38091 | 227.9 | 751 | 725 | 164.0 |
| B | 12 | 111 | 18613 | 109.1 | 751 | 725 | 164.0 |
| C | 15 | 148 | 797499 | 3732.48 | 734 | 726 | 213.5 |
| C | 13 | 3 | 216074 | 1008.8 | 734 | 726 | 213.5 |
| C | 12 | 252 | 102324 | 475.94 | 734 | 726 | 213.5 |
| D | 8 | 245 | 3306844 | 14708.78 | 742 | 709 | 224.8 |
| D | 7 | 70 | 434761 | 1931.07 | 742 | 709 | 224.8 |
| D | 3 | 12 | 99705 | 440.43 | 742 | 709 | 224.8 |
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 |  |