Observation information
- date-obs: 2021-06-30
- time-obs: 10:30:00.832500000
- date-end: 2021-06-30
- time-end: 12:55:42.831200000
- obs_id: A10_109T01_9000004492
- exposure: 3180.54707967
- 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_31119cztM0_level2.evt
| modeM0/AS1A10_109T01_9000004492_31119cztM0_level2_quad_clean.evt
|
| Size (bytes) | 590,034,240 | 77,152,320 |
| Size | 562.7 MB
| 73.6 MB
|
| Events in quadrant A | 3,447,952 | 491,356 |
| Events in quadrant B | 5,137,099 | 483,826 |
| Events in quadrant C | 4,700,617 | 460,439 |
| Events in quadrant D | 4,154,274 | 457,745 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14686 | 470 |
| B | 0 | 20244 | 675 |
| C | 0 | 18987 | 997 |
| D | 0 | 16950 | 510 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 4 |
| B | 0 | 134 | 6 |
| C | 0 | 134 | 6 |
| D | 0 | 134 | 6 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 3 |
| B | 0 | 22 | 2 |
| C | 0 | 22 | 3 |
| D | 0 | 22 | 3 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6357 | 88 | 1.384301% |
| B | 6345 | 164 | 2.584712% |
| C | 6341 | 514 | 8.105977% |
| D | 6353 | 92 | 1.448135% |
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 | 8737 | 6376 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8743 | 6356 | 0 | 0 | 0.00% | 0.00% |  |
| C | 8743 | 6346 | 204 | 204 | 2.33% | 3.21% |  |
| D | 8742 | 6366 | 13 | 13 | 0.15% | 0.20% |  |
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 | 10526 | 54.4 | 893 | 880 | 177.3 |
| A | 3 | 137 | 8596 | 43.51 | 893 | 880 | 177.3 |
| A | 0 | 226 | 7634 | 38.09 | 893 | 880 | 177.3 |
| B | 6 | 159 | 1687929 | 10286.62 | 869 | 850 | 164.0 |
| B | 0 | 183 | 22537 | 132.23 | 869 | 850 | 164.0 |
| B | 12 | 111 | 19852 | 115.86 | 869 | 850 | 164.0 |
| C | 10 | 22 | 1030706 | 5370.36 | 825 | 832 | 191.8 |
| C | 0 | 10 | 287013 | 1492.31 | 825 | 832 | 191.8 |
| C | 14 | 238 | 136885 | 709.46 | 825 | 832 | 191.8 |
| D | 12 | 218 | 437236 | 2147.19 | 857 | 836 | 203.2 |
| D | 8 | 195 | 405594 | 1991.5 | 857 | 836 | 203.2 |
| D | 2 | 250 | 46112 | 222.77 | 857 | 836 | 203.2 |
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 |  |