Observation information
- date-obs: 2018-07-24
- time-obs: 17:04:46.355400000
- date-end: 2018-07-24
- time-end: 19:30:51.351900000
- obs_id: T02_073T01_9000002252
- exposure: 4752.77185981
- sourceid: Cygnus X-1
- observer: mithunnps
- ra_pnt: 299.563
- dec_pnt: 35.202
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_073T01_9000002252_15255cztM0_level2.evt
| modeM0/AS1T02_073T01_9000002252_15255cztM0_level2_quad_clean.evt
|
| Size (bytes) | 445,426,560 | 110,799,360 |
| Size | 424.8 MB
| 105.7 MB
|
| Events in quadrant A | 3,165,909 | 731,373 |
| Events in quadrant B | 3,297,842 | 751,848 |
| Events in quadrant C | 3,359,501 | 740,108 |
| Events in quadrant D | 3,249,239 | 703,750 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 27 | 0 |
| B | 0 | 27 | 0 |
| C | 0 | 27 | 0 |
| D | 0 | 27 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13420 | 2 |
| B | 0 | 13861 | 1 |
| C | 0 | 13933 | 1 |
| D | 0 | 13808 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6145 | 92 | 1.497152% |
| B | 6145 | 114 | 1.855167% |
| C | 6145 | 86 | 1.399512% |
| D | 6145 | 139 | 2.262002% |
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 | 8766 | 6148 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8766 | 6148 | 5 | 5 | 0.06% | 0.08% |  |
| C | 8766 | 6148 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8766 | 6148 | 48 | 48 | 0.55% | 0.78% |  |
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 | 12 | 189 | 51361 | 311.61 | 811 | 795 | 162.3 |
| A | 0 | 226 | 7010 | 38.3 | 811 | 795 | 162.3 |
| A | 12 | 194 | 5970 | 31.89 | 811 | 795 | 162.3 |
| B | 10 | 245 | 64715 | 422.1 | 812 | 794 | 151.4 |
| B | 10 | 16 | 25688 | 164.38 | 812 | 794 | 151.4 |
| B | 12 | 111 | 17669 | 111.43 | 812 | 794 | 151.4 |
| C | 3 | 233 | 211804 | 1144.95 | 806 | 812 | 184.3 |
| C | 4 | 254 | 8253 | 40.38 | 806 | 812 | 184.3 |
| C | 13 | 61 | 5506 | 25.47 | 806 | 812 | 184.3 |
| D | 10 | 70 | 134554 | 695.95 | 799 | 778 | 192.2 |
| D | 2 | 33 | 90199 | 465.2 | 799 | 778 | 192.2 |
| D | 2 | 234 | 20771 | 104.01 | 799 | 778 | 192.2 |
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 |  |