Observation information
- date-obs: 2026-01-06
- time-obs: 23:50:01.531800000
- date-end: 2026-01-07
- time-end: 01:57:19.512300000
- obs_id: A14_021T06_9000006538
- exposure: 6556.61842483
- 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_55601cztM0_level2.fits
| modeM0/AS1A14_021T06_9000006538_55601cztM0_level2_quad_clean.evt
|
| Size (bytes) | 403,079,040 | 95,328,000 |
| Size | 384.4 MB
| 90.9 MB
|
| Events in quadrant A | 3,614,230 | 611,159 |
| Events in quadrant B | 3,547,403 | 653,941 |
| Events in quadrant C | 3,116,080 | 592,101 |
| Events in quadrant D | 4,112,870 | 554,711 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 8 | 0 |
| C | 0 | 8 | 0 |
| D | 0 | 8 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15789 | 1 |
| B | 0 | 15808 | 1 |
| C | 0 | 14723 | 1 |
| D | 0 | 17214 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6808 | 131 | 1.924207% |
| B | 6808 | 180 | 2.643948% |
| C | 6809 | 82 | 1.204288% |
| D | 6808 | 120 | 1.762632% |
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 | 7638 | 6809 | 116 | 116 | 1.52% | 1.70% |  |
| B | 7638 | 6809 | 119 | 119 | 1.56% | 1.75% |  |
| C | 7639 | 6810 | 57 | 57 | 0.75% | 0.84% |  |
| D | 7638 | 6809 | 147 | 147 | 1.92% | 2.16% |  |
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 | 465469 | 2743.82 | 685 | 665 | 169.4 |
| A | 3 | 14 | 382541 | 2254.28 | 685 | 665 | 169.4 |
| A | 8 | 249 | 94535 | 554.13 | 685 | 665 | 169.4 |
| B | 5 | 236 | 693118 | 4789.62 | 676 | 650 | 144.6 |
| B | 5 | 185 | 60935 | 416.98 | 676 | 650 | 144.6 |
| B | 7 | 0 | 44776 | 305.21 | 676 | 650 | 144.6 |
| C | 15 | 178 | 179884 | 974.82 | 673 | 666 | 183.8 |
| C | 10 | 19 | 76840 | 414.34 | 673 | 666 | 183.8 |
| C | 15 | 200 | 59106 | 317.87 | 673 | 666 | 183.8 |
| D | 8 | 160 | 832142 | 4380.53 | 665 | 636 | 189.8 |
| D | 11 | 129 | 207625 | 1090.46 | 665 | 636 | 189.8 |
| D | 2 | 249 | 171802 | 901.73 | 665 | 636 | 189.8 |
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 |  |