Observation information
- date-obs: 2021-08-19
- time-obs: 14:18:00.922600000
- date-end: 2021-08-19
- time-end: 16:24:45.924300000
- obs_id: A10_109T01_9000004646
- exposure: 4057.12266409
- sourceid: Cygnus X-1
- observer: tanmoy
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A10_109T01_9000004646_31861cztM0_level2.evt
| modeM0/AS1A10_109T01_9000004646_31861cztM0_level2_quad_clean.evt
|
| Size (bytes) | 456,232,320 | 100,103,040 |
| Size | 435.1 MB
| 95.5 MB
|
| Events in quadrant A | 2,642,158 | 710,594 |
| Events in quadrant B | 3,752,052 | 700,394 |
| Events in quadrant C | 3,336,498 | 653,163 |
| Events in quadrant D | 3,760,412 | 630,451 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 111 | 11 |
| B | 0 | 113 | 11 |
| C | 0 | 113 | 13 |
| D | 0 | 115 | 15 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12303 | 1321 |
| B | 0 | 16403 | 1984 |
| C | 0 | 14623 | 1437 |
| D | 0 | 15899 | 1479 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 14 | 2 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4810 | 87 | 1.808732% |
| B | 4753 | 130 | 2.735115% |
| C | 4819 | 329 | 6.827143% |
| D | 4782 | 420 | 8.782936% |
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 | 7433 | 4919 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7429 | 4852 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7426 | 4918 | 108 | 108 | 1.45% | 2.20% |  |
| D | 7425 | 4887 | 312 | 312 | 4.20% | 6.38% |  |
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 | 13 | 254 | 8756 | 59.48 | 684 | 674 | 135.9 |
| A | 3 | 137 | 6320 | 41.55 | 684 | 674 | 135.9 |
| A | 0 | 226 | 5717 | 37.11 | 684 | 674 | 135.9 |
| B | 6 | 159 | 1179268 | 9555.3 | 654 | 640 | 123.3 |
| B | 12 | 111 | 14448 | 111.94 | 654 | 640 | 123.3 |
| B | 11 | 111 | 13424 | 103.64 | 654 | 640 | 123.3 |
| C | 0 | 10 | 510053 | 3450.25 | 635 | 641 | 147.6 |
| C | 3 | 233 | 203760 | 1375.73 | 635 | 641 | 147.6 |
| C | 14 | 238 | 110147 | 741.69 | 635 | 641 | 147.6 |
| D | 12 | 233 | 585535 | 3864.77 | 636 | 620 | 151.3 |
| D | 12 | 218 | 493157 | 3254.39 | 636 | 620 | 151.3 |
| D | 8 | 195 | 204371 | 1346.26 | 636 | 620 | 151.3 |
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 |  |