Observation information
- date-obs: 2018-04-07
- time-obs: 23:07:08.883600000
- date-end: 2018-04-08
- time-end: 01:38:55.879700000
- obs_id: G08_075T01_9000002024
- exposure: 6819.39026742
- sourceid: Cygnus X-1
- observer: ravibt
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_075T01_9000002024_13661cztM0_level2.evt
| modeM0/AS1G08_075T01_9000002024_13661cztM0_level2_quad_clean.evt
|
| Size (bytes) | 583,704,000 | 138,772,800 |
| Size | 556.7 MB
| 132.3 MB
|
| Events in quadrant A | 4,794,343 | 880,687 |
| Events in quadrant B | 3,906,026 | 900,537 |
| Events in quadrant C | 3,896,330 | 957,137 |
| Events in quadrant D | 4,535,369 | 905,658 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19725 | 1 |
| B | 0 | 17156 | 1 |
| C | 0 | 16717 | 1 |
| D | 0 | 18901 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 162 | 0 |
| B | 0 | 162 | 0 |
| C | 0 | 162 | 0 |
| D | 0 | 162 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 8048 | 247 | 3.069085% |
| B | 8048 | 68 | 0.844930% |
| C | 8048 | 32 | 0.397614% |
| D | 8048 | 56 | 0.695825% |
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 | 9109 | 8050 | 207 | 207 | 2.27% | 2.57% |  |
| B | 9109 | 8050 | 15 | 15 | 0.16% | 0.19% |  |
| C | 9109 | 8050 | 0 | 0 | 0.00% | 0.00% |  |
| D | 9109 | 8050 | 34 | 34 | 0.37% | 0.42% |  |
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 | 9 | 143 | 1194143 | 6335.86 | 923 | 904 | 188.3 |
| A | 15 | 69 | 32028 | 165.26 | 923 | 904 | 188.3 |
| A | 0 | 226 | 8254 | 39.03 | 923 | 904 | 188.3 |
| B | 0 | 219 | 104301 | 583.7 | 935 | 913 | 177.1 |
| B | 3 | 64 | 38070 | 209.78 | 935 | 913 | 177.1 |
| B | 0 | 244 | 35456 | 195.02 | 935 | 913 | 177.1 |
| C | 3 | 233 | 284584 | 1314.38 | 926 | 933 | 215.8 |
| C | 13 | 61 | 6698 | 26.71 | 926 | 933 | 215.8 |
| C | 14 | 234 | 2230 | 6.01 | 926 | 933 | 215.8 |
| D | 5 | 222 | 686413 | 3099.93 | 915 | 892 | 221.1 |
| D | 8 | 195 | 233808 | 1053.25 | 915 | 892 | 221.1 |
| D | 13 | 122 | 61770 | 275.29 | 915 | 892 | 221.1 |
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 |  |