Observation information
- date-obs: 2017-09-18
- time-obs: 18:21:34.536900000
- date-end: 2017-09-18
- time-end: 20:33:27.537400000
- obs_id: A03_097T01_9000001540
- exposure: 3912.41836683
- 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_10682cztM0_level2.evt
| modeM0/AS1A03_097T01_9000001540_10682cztM0_level2_quad_clean.evt
|
| Size (bytes) | 548,510,400 | 88,018,560 |
| Size | 523.1 MB
| 83.9 MB
|
| Events in quadrant A | 3,301,263 | 570,153 |
| Events in quadrant B | 5,202,809 | 570,591 |
| Events in quadrant C | 2,960,642 | 576,018 |
| Events in quadrant D | 4,732,449 | 520,941 |
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 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13846 | 3 |
| B | 0 | 19575 | 2 |
| C | 0 | 12802 | 2 |
| D | 0 | 18198 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6117 | 62 | 1.013569% |
| B | 6117 | 439 | 7.176721% |
| C | 6117 | 32 | 0.523132% |
| D | 6117 | 279 | 4.561059% |
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 | 7467 | 6118 | 18 | 18 | 0.24% | 0.29% |  |
| B | 7467 | 6118 | 269 | 269 | 3.60% | 4.40% |  |
| C | 7467 | 6118 | 6 | 6 | 0.08% | 0.10% |  |
| D | 7467 | 6118 | 218 | 218 | 2.92% | 3.56% |  |
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 | 167 | 108092 | 710.84 | 754 | 739 | 151.0 |
| A | 15 | 174 | 91430 | 600.51 | 754 | 739 | 151.0 |
| A | 15 | 239 | 85990 | 564.49 | 754 | 739 | 151.0 |
| B | 0 | 85 | 1248412 | 8867.5 | 751 | 734 | 140.7 |
| B | 4 | 239 | 783095 | 5560.4 | 751 | 734 | 140.7 |
| B | 4 | 81 | 74228 | 522.34 | 751 | 734 | 140.7 |
| C | 14 | 234 | 29629 | 167.49 | 745 | 749 | 172.4 |
| C | 4 | 175 | 9885 | 52.99 | 745 | 749 | 172.4 |
| C | 13 | 61 | 5660 | 28.48 | 745 | 749 | 172.4 |
| D | 2 | 16 | 741527 | 4261.23 | 725 | 708 | 173.9 |
| D | 10 | 199 | 547980 | 3147.94 | 725 | 708 | 173.9 |
| D | 8 | 195 | 366815 | 2105.87 | 725 | 708 | 173.9 |
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 |  |