Observation information
- date-obs: 2018-07-24
- time-obs: 19:11:32.352200000
- date-end: 2018-07-24
- time-end: 21:15:53.349100000
- obs_id: T02_073T01_9000002252
- exposure: 4419.9597694
- 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_15256cztM0_level2.evt
| modeM0/AS1T02_073T01_9000002252_15256cztM0_level2_quad_clean.evt
|
| Size (bytes) | 443,810,880 | 103,161,600 |
| Size | 423.3 MB
| 98.4 MB
|
| Events in quadrant A | 3,087,551 | 675,522 |
| Events in quadrant B | 3,411,112 | 690,113 |
| Events in quadrant C | 3,450,921 | 682,545 |
| Events in quadrant D | 3,077,323 | 650,736 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 15 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13047 | 2 |
| B | 0 | 14030 | 1 |
| C | 0 | 14082 | 1 |
| D | 0 | 13226 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6099 | 42 | 0.688637% |
| B | 6099 | 131 | 2.147893% |
| C | 6099 | 62 | 1.016560% |
| D | 6099 | 43 | 0.705034% |
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 | 7461 | 6101 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7461 | 6101 | 62 | 62 | 0.83% | 1.02% |  |
| C | 7461 | 6101 | 6 | 6 | 0.08% | 0.10% |  |
| D | 7461 | 6101 | 15 | 15 | 0.20% | 0.25% |  |
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 | 56543 | 352.9 | 789 | 774 | 158.0 |
| A | 0 | 226 | 6754 | 37.84 | 789 | 774 | 158.0 |
| A | 12 | 194 | 5730 | 31.36 | 789 | 774 | 158.0 |
| B | 10 | 16 | 182746 | 1236.4 | 792 | 775 | 147.2 |
| B | 3 | 64 | 48240 | 322.5 | 792 | 775 | 147.2 |
| B | 10 | 245 | 34844 | 231.48 | 792 | 775 | 147.2 |
| C | 3 | 233 | 331521 | 1856.46 | 784 | 791 | 178.2 |
| C | 4 | 254 | 61803 | 342.47 | 784 | 791 | 178.2 |
| C | 13 | 61 | 5382 | 25.77 | 784 | 791 | 178.2 |
| D | 10 | 70 | 77942 | 410.52 | 779 | 758 | 188.0 |
| D | 2 | 33 | 31848 | 165.36 | 779 | 758 | 188.0 |
| D | 2 | 234 | 20984 | 107.58 | 779 | 758 | 188.0 |
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 |  |