Observation information
- date-obs: 2019-06-18
- time-obs: 20:40:05.787900000
- date-end: 2019-06-19
- time-end: 07:14:29.775700000
- obs_id: A05_180T01_9000002992
- exposure: 18967.5354038
- sourceid: Cygnus X-1
- observer: santoshv
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_180T01_9000002992_20132cztM0_level2.evt
| modeM0/AS1A05_180T01_9000002992_20132cztM0_level2_quad_clean.evt
|
| Size (bytes) | 2,875,489,920 | 440,663,040 |
| Size | 2.7 GB
| 420.2 MB
|
| Events in quadrant A | 30,346,246 | 2,540,766 |
| Events in quadrant B | 16,058,055 | 2,972,235 |
| Events in quadrant C | 16,751,857 | 2,826,871 |
| Events in quadrant D | 21,728,581 | 2,762,822 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 55 | 0 |
| B | 0 | 55 | 0 |
| C | 0 | 55 | 0 |
| D | 0 | 55 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 111441 | 6 |
| B | 0 | 68270 | 6 |
| C | 0 | 69999 | 6 |
| D | 0 | 86458 | 6 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 662 | 0 |
| B | 0 | 662 | 0 |
| C | 0 | 662 | 0 |
| D | 0 | 662 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 32649 | 6726 | 20.600937% |
| B | 32649 | 236 | 0.722840% |
| C | 32648 | 404 | 1.237442% |
| D | 32649 | 1634 | 5.004747% |
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 | 38064 | 32654 | 4125 | 4125 | 10.84% | 12.63% |  |
| B | 38064 | 32655 | 11 | 11 | 0.03% | 0.03% |  |
| C | 38063 | 32654 | 35 | 35 | 0.09% | 0.11% |  |
| D | 38064 | 32655 | 1635 | 1635 | 4.30% | 5.01% |  |
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 | 14 | 238 | 15935714 | 22198.16 | 3595 | 3537 | 717.7 |
| A | 14 | 237 | 276030 | 379.66 | 3595 | 3537 | 717.7 |
| A | 14 | 254 | 261577 | 359.52 | 3595 | 3537 | 717.7 |
| B | 12 | 111 | 92993 | 117.53 | 4034 | 3946 | 757.7 |
| B | 0 | 214 | 90861 | 114.71 | 4034 | 3946 | 757.7 |
| B | 11 | 111 | 82442 | 103.6 | 4034 | 3946 | 757.7 |
| C | 3 | 233 | 1024386 | 1147.02 | 3860 | 3897 | 889.7 |
| C | 14 | 238 | 611926 | 683.42 | 3860 | 3897 | 889.7 |
| C | 8 | 208 | 53324 | 55.55 | 3860 | 3897 | 889.7 |
| D | 1 | 52 | 6550574 | 6967.67 | 3887 | 3788 | 939.6 |
| D | 2 | 234 | 135480 | 140.16 | 3887 | 3788 | 939.6 |
| D | 14 | 34 | 119766 | 123.43 | 3887 | 3788 | 939.6 |
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 |  |