Observation information
- date-obs: 2026-01-05
- time-obs: 16:36:52.783800000
- date-end: 2026-01-05
- time-end: 18:42:10.768500000
- obs_id: A14_021T06_9000006538
- exposure: 7074.20153189
- 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_55582cztM0_level2.fits
| modeM0/AS1A14_021T06_9000006538_55582cztM0_level2_quad_clean.evt
|
| Size (bytes) | 493,467,840 | 105,120,000 |
| Size | 470.6 MB
| 100.3 MB
|
| Events in quadrant A | 4,281,965 | 686,994 |
| Events in quadrant B | 3,656,038 | 742,191 |
| Events in quadrant C | 5,027,573 | 620,892 |
| Events in quadrant D | 4,716,902 | 609,693 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17988 | 0 |
| B | 0 | 16513 | 0 |
| C | 0 | 20514 | 0 |
| D | 0 | 19558 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 150 | 0 |
| B | 0 | 150 | 0 |
| C | 0 | 150 | 0 |
| D | 0 | 150 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7518 | 134 | 1.782389% |
| B | 7518 | 30 | 0.399042% |
| C | 7519 | 430 | 5.718846% |
| D | 7519 | 226 | 3.005719% |
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 | 7518 | 7518 | 107 | 107 | 1.42% | 1.42% |  |
| B | 7518 | 7518 | 14 | 14 | 0.19% | 0.19% |  |
| C | 7519 | 7519 | 395 | 395 | 5.25% | 5.25% |  |
| D | 7519 | 7519 | 194 | 194 | 2.58% | 2.58% |  |
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 | 527942 | 2791.13 | 765 | 746 | 188.9 |
| A | 0 | 8 | 429201 | 2268.37 | 765 | 746 | 188.9 |
| A | 8 | 249 | 142462 | 750.29 | 765 | 746 | 188.9 |
| B | 5 | 236 | 391416 | 2389.01 | 759 | 728 | 163.5 |
| B | 4 | 169 | 120734 | 733.82 | 759 | 728 | 163.5 |
| B | 0 | 199 | 48979 | 295.05 | 759 | 728 | 163.5 |
| C | 13 | 3 | 953843 | 4748.1 | 731 | 723 | 200.7 |
| C | 12 | 2 | 730840 | 3637.18 | 731 | 723 | 200.7 |
| C | 6 | 223 | 200182 | 993.63 | 731 | 723 | 200.7 |
| D | 11 | 129 | 1051025 | 4956.5 | 743 | 707 | 211.9 |
| D | 15 | 125 | 258610 | 1217.06 | 743 | 707 | 211.9 |
| D | 2 | 62 | 84178 | 393.9 | 743 | 707 | 211.9 |
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 |  |