Observation information
- date-obs: 2018-04-14
- time-obs: 00:58:15.534100000
- date-end: 2018-04-14
- time-end: 03:22:06.526800000
- obs_id: G08_062T01_9000002038
- exposure: 4982.55305063
- 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/AS1G08_062T01_9000002038_13750cztM0_level2.evt
| modeM0/AS1G08_062T01_9000002038_13750cztM0_level2_quad_clean.evt
|
| Size (bytes) | 466,444,800 | 116,386,560 |
| Size | 444.8 MB
| 111.0 MB
|
| Events in quadrant A | 3,289,200 | 761,419 |
| Events in quadrant B | 3,538,921 | 767,596 |
| Events in quadrant C | 3,343,276 | 794,042 |
| Events in quadrant D | 3,512,082 | 747,231 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 21 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13874 | 4 |
| B | 0 | 14695 | 3 |
| C | 0 | 13958 | 3 |
| D | 0 | 14697 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6515 | 47 | 0.721412% |
| B | 6515 | 94 | 1.442824% |
| C | 6515 | 46 | 0.706063% |
| D | 6515 | 47 | 0.721412% |
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 | 7841 | 6518 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7841 | 6518 | 12 | 12 | 0.15% | 0.18% |  |
| C | 7841 | 6518 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7841 | 6518 | 16 | 16 | 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 | 9 | 143 | 26197 | 150.13 | 835 | 821 | 169.0 |
| A | 0 | 23 | 14396 | 80.31 | 835 | 821 | 169.0 |
| A | 1 | 162 | 13173 | 73.08 | 835 | 821 | 169.0 |
| B | 4 | 173 | 116449 | 741.87 | 840 | 823 | 155.9 |
| B | 0 | 219 | 59493 | 376.43 | 840 | 823 | 155.9 |
| B | 3 | 64 | 25398 | 157.68 | 840 | 823 | 155.9 |
| C | 3 | 233 | 123079 | 640.82 | 825 | 831 | 190.8 |
| C | 13 | 61 | 6099 | 27.61 | 825 | 831 | 190.8 |
| C | 12 | 4 | 2762 | 10.12 | 825 | 831 | 190.8 |
| D | 5 | 222 | 121885 | 565.84 | 800 | 785 | 214.0 |
| D | 1 | 52 | 117785 | 546.68 | 800 | 785 | 214.0 |
| D | 13 | 168 | 81093 | 375.24 | 800 | 785 | 214.0 |
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 |  |