Observation information
- date-obs: 2021-06-28
- time-obs: 09:43:35.900800000
- date-end: 2021-06-28
- time-end: 12:10:06.895900000
- obs_id: A10_109T01_9000004492
- exposure: 3428.89181301
- 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_9000004492_31088cztM0_level2.evt
| modeM0/AS1A10_109T01_9000004492_31088cztM0_level2_quad_clean.evt
|
| Size (bytes) | 571,645,440 | 79,839,360 |
| Size | 545.2 MB
| 76.1 MB
|
| Events in quadrant A | 3,538,166 | 499,506 |
| Events in quadrant B | 5,418,975 | 492,540 |
| Events in quadrant C | 3,904,538 | 475,885 |
| Events in quadrant D | 3,985,290 | 470,905 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14701 | 2 |
| B | 0 | 20951 | 2 |
| C | 0 | 15759 | 2 |
| D | 0 | 16158 | 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 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6876 | 124 | 1.803374% |
| B | 6877 | 204 | 2.966410% |
| C | 6877 | 238 | 3.460811% |
| D | 6877 | 96 | 1.395958% |
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 | 8791 | 6878 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8792 | 6879 | 0 | 0 | 0.00% | 0.00% |  |
| C | 8792 | 6879 | 16 | 16 | 0.18% | 0.23% |  |
| D | 8792 | 6879 | 2 | 2 | 0.02% | 0.03% |  |
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 | 12321 | 63.21 | 915 | 900 | 180.7 |
| A | 3 | 137 | 9246 | 46.19 | 915 | 900 | 180.7 |
| A | 0 | 226 | 7757 | 37.95 | 915 | 900 | 180.7 |
| B | 6 | 159 | 1853092 | 10781.58 | 894 | 874 | 171.8 |
| B | 12 | 111 | 21528 | 120.22 | 894 | 874 | 171.8 |
| B | 0 | 230 | 21477 | 119.93 | 894 | 874 | 171.8 |
| C | 0 | 10 | 209614 | 1034.18 | 864 | 872 | 201.8 |
| C | 10 | 22 | 147945 | 728.65 | 864 | 872 | 201.8 |
| C | 14 | 238 | 140451 | 691.52 | 864 | 872 | 201.8 |
| D | 8 | 195 | 378564 | 1831.2 | 882 | 861 | 206.3 |
| D | 13 | 174 | 216490 | 1045.42 | 882 | 861 | 206.3 |
| D | 2 | 234 | 29688 | 139.76 | 882 | 861 | 206.3 |
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 |  |