Observation information
- date-obs: 2017-09-17
- time-obs: 18:07:09.542800000
- date-end: 2017-09-17
- time-end: 20:12:08.543300000
- obs_id: A03_097T01_9000001540
- exposure: 3840.47462069
- sourceid: Cygnus X-1
- observer: aarthy
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A03_097T01_9000001540_10667cztM0_level2.evt
| modeM0/AS1A03_097T01_9000001540_10667cztM0_level2_quad_clean.evt
|
| Size (bytes) | 592,015,680 | 87,099,840 |
| Size | 564.6 MB
| 83.1 MB
|
| Events in quadrant A | 3,012,273 | 586,512 |
| Events in quadrant B | 4,259,901 | 581,117 |
| Events in quadrant C | 3,540,544 | 580,618 |
| Events in quadrant D | 6,700,604 | 460,015 |
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 | 14 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12967 | 2 |
| B | 0 | 16712 | 1 |
| C | 0 | 14524 | 1 |
| D | 0 | 24033 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6144 | 24 | 0.390625% |
| B | 6144 | 312 | 5.078125% |
| C | 6144 | 102 | 1.660156% |
| D | 6144 | 1312 | 21.354167% |
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 | 7499 | 6145 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7499 | 6145 | 179 | 179 | 2.39% | 2.91% |  |
| C | 7499 | 6145 | 54 | 54 | 0.72% | 0.88% |  |
| D | 7499 | 6144 | 1087 | 1087 | 14.50% | 17.69% |  |
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 | 4 | 2 | 25734 | 161.78 | 761 | 746 | 154.4 |
| A | 3 | 1 | 17651 | 109.45 | 761 | 746 | 154.4 |
| A | 11 | 29 | 17365 | 107.6 | 761 | 746 | 154.4 |
| B | 4 | 239 | 992407 | 7039.8 | 757 | 741 | 140.9 |
| B | 4 | 81 | 217543 | 1539.07 | 757 | 741 | 140.9 |
| B | 15 | 204 | 44594 | 311.31 | 757 | 741 | 140.9 |
| C | 4 | 254 | 589034 | 3454.69 | 743 | 751 | 170.3 |
| C | 4 | 175 | 36973 | 212.71 | 743 | 751 | 170.3 |
| C | 4 | 238 | 6803 | 35.54 | 743 | 751 | 170.3 |
| D | 1 | 20 | 1887574 | 11331.32 | 660 | 648 | 166.5 |
| D | 4 | 95 | 760680 | 4564.13 | 660 | 648 | 166.5 |
| D | 8 | 195 | 621198 | 3726.51 | 660 | 648 | 166.5 |
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 |  |