Observation information
- date-obs: 2019-06-18
- time-obs: 00:58:49.806800000
- date-end: 2019-06-18
- time-end: 03:22:50.804600000
- obs_id: A05_180T01_9000002992
- exposure: 4808.89817686
- 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_20114cztM0_level2.evt
| modeM0/AS1A05_180T01_9000002992_20114cztM0_level2_quad_clean.evt
|
| Size (bytes) | 601,551,360 | 107,251,200 |
| Size | 573.7 MB
| 102.3 MB
|
| Events in quadrant A | 4,118,596 | 700,053 |
| Events in quadrant B | 3,864,090 | 716,347 |
| Events in quadrant C | 3,357,162 | 689,120 |
| Events in quadrant D | 6,405,221 | 656,394 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16752 | 2 |
| B | 0 | 16052 | 2 |
| C | 0 | 14459 | 2 |
| D | 0 | 23807 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 142 | 0 |
| B | 0 | 142 | 0 |
| C | 0 | 142 | 0 |
| D | 0 | 142 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6981 | 339 | 4.856038% |
| B | 6981 | 101 | 1.446784% |
| C | 6981 | 86 | 1.231915% |
| D | 6982 | 1048 | 15.010026% |
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 | 8641 | 6983 | 173 | 173 | 2.00% | 2.48% |  |
| B | 8641 | 6983 | 11 | 11 | 0.13% | 0.16% |  |
| C | 8641 | 6983 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8642 | 6984 | 929 | 929 | 10.75% | 13.30% |  |
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 | 821949 | 4801.4 | 847 | 830 | 171.0 |
| A | 9 | 143 | 15583 | 86.27 | 847 | 830 | 171.0 |
| A | 14 | 237 | 11778 | 64.02 | 847 | 830 | 171.0 |
| B | 10 | 245 | 451072 | 2741.82 | 855 | 836 | 164.2 |
| B | 0 | 198 | 32479 | 192.7 | 855 | 836 | 164.2 |
| B | 0 | 183 | 27310 | 161.22 | 855 | 836 | 164.2 |
| C | 14 | 238 | 127426 | 654.78 | 823 | 830 | 193.3 |
| C | 3 | 233 | 20414 | 101.29 | 823 | 830 | 193.3 |
| C | 13 | 61 | 5910 | 26.27 | 823 | 830 | 193.3 |
| D | 7 | 238 | 2374067 | 12437.91 | 789 | 769 | 190.8 |
| D | 1 | 52 | 804017 | 4209.64 | 789 | 769 | 190.8 |
| D | 11 | 176 | 141124 | 735.57 | 789 | 769 | 190.8 |
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 |  |