Observation information
- date-obs: 2018-07-30
- time-obs: 14:13:12.365900000
- date-end: 2018-07-30
- time-end: 16:37:59.361500000
- obs_id: T02_073T01_9000002260
- exposure: 4798.15503383
- 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_9000002260_15342cztM0_level2.evt
| modeM0/AS1T02_073T01_9000002260_15342cztM0_level2_quad_clean.evt
|
| Size (bytes) | 456,410,880 | 109,765,440 |
| Size | 435.3 MB
| 104.7 MB
|
| Events in quadrant A | 3,281,322 | 725,829 |
| Events in quadrant B | 3,332,197 | 739,557 |
| Events in quadrant C | 3,415,600 | 729,175 |
| Events in quadrant D | 3,367,787 | 692,643 |
Level1 data integrity
| 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 | 13826 | 3 |
| B | 0 | 13958 | 2 |
| C | 0 | 14115 | 2 |
| D | 0 | 14079 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 24 | 0 |
| B | 0 | 24 | 0 |
| C | 0 | 24 | 0 |
| D | 0 | 25 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6270 | 84 | 1.339713% |
| B | 6270 | 87 | 1.387560% |
| C | 6270 | 75 | 1.196172% |
| D | 6270 | 78 | 1.244019% |
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 | 7561 | 6271 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7561 | 6272 | 1 | 1 | 0.01% | 0.02% |  |
| C | 7561 | 6271 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7561 | 6271 | 5 | 5 | 0.07% | 0.08% |  |
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 | 0 | 226 | 7532 | 39.51 | 851 | 836 | 169.5 |
| A | 4 | 2 | 7525 | 39.47 | 851 | 836 | 169.5 |
| A | 12 | 194 | 6373 | 32.67 | 851 | 836 | 169.5 |
| B | 3 | 64 | 22096 | 134.42 | 844 | 825 | 158.2 |
| B | 12 | 111 | 18368 | 110.86 | 844 | 825 | 158.2 |
| B | 0 | 205 | 16852 | 101.28 | 844 | 825 | 158.2 |
| C | 3 | 233 | 132855 | 692.54 | 838 | 845 | 190.6 |
| C | 7 | 247 | 14436 | 71.3 | 838 | 845 | 190.6 |
| C | 13 | 61 | 5984 | 26.96 | 838 | 845 | 190.6 |
| D | 1 | 255 | 107162 | 526.12 | 837 | 814 | 202.1 |
| D | 10 | 70 | 40186 | 194.78 | 837 | 814 | 202.1 |
| D | 2 | 234 | 22910 | 109.31 | 837 | 814 | 202.1 |
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 |  |