Observation information
- date-obs: 2021-06-27
- time-obs: 09:25:24.943700000
- date-end: 2021-06-27
- time-end: 11:50:01.939600000
- obs_id: A10_109T01_9000004492
- exposure: 3268.68089195
- 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_31073cztM0_level2.evt
| modeM0/AS1A10_109T01_9000004492_31073cztM0_level2_quad_clean.evt
|
| Size (bytes) | 606,234,240 | 75,873,600 |
| Size | 578.2 MB
| 72.4 MB
|
| Events in quadrant A | 3,505,182 | 469,245 |
| Events in quadrant B | 5,578,688 | 462,917 |
| Events in quadrant C | 3,827,091 | 445,869 |
| Events in quadrant D | 4,982,330 | 438,855 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14511 | 2 |
| B | 0 | 21453 | 2 |
| C | 0 | 15462 | 2 |
| D | 0 | 19599 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6897 | 95 | 1.377410% |
| B | 6897 | 188 | 2.725823% |
| C | 6897 | 213 | 3.088299% |
| D | 6898 | 138 | 2.000580% |
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 | 8677 | 6899 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8677 | 6899 | 3 | 3 | 0.03% | 0.04% |  |
| C | 8677 | 6899 | 14 | 14 | 0.16% | 0.20% |  |
| D | 8678 | 6900 | 41 | 41 | 0.47% | 0.59% |  |
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 | 170 | 47194 | 257.62 | 896 | 878 | 179.8 |
| A | 13 | 254 | 11984 | 61.77 | 896 | 878 | 179.8 |
| A | 3 | 137 | 9332 | 47.02 | 896 | 878 | 179.8 |
| B | 6 | 159 | 1807063 | 10677.2 | 877 | 855 | 169.2 |
| B | 0 | 183 | 170264 | 1001.44 | 877 | 855 | 169.2 |
| B | 0 | 190 | 140071 | 822.96 | 877 | 855 | 169.2 |
| C | 0 | 10 | 243285 | 1221.22 | 843 | 848 | 198.5 |
| C | 14 | 238 | 136385 | 682.73 | 843 | 848 | 198.5 |
| C | 10 | 22 | 110457 | 552.13 | 843 | 848 | 198.5 |
| D | 8 | 195 | 1309373 | 6378.57 | 859 | 837 | 205.1 |
| D | 13 | 174 | 358149 | 1741.75 | 859 | 837 | 205.1 |
| D | 2 | 250 | 53294 | 255.71 | 859 | 837 | 205.1 |
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 |  |