Observation information
- date-obs: 2017-09-18
- time-obs: 02:46:03.541700000
- date-end: 2017-09-18
- time-end: 04:53:41.541600000
- obs_id: A03_097T01_9000001540
- exposure: 4276.84511081
- 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_10672cztM0_level2.evt
| modeM0/AS1A03_097T01_9000001540_10672cztM0_level2_quad_clean.evt
|
| Size (bytes) | 603,982,080 | 88,712,640 |
| Size | 576.0 MB
| 84.6 MB
|
| Events in quadrant A | 4,657,050 | 526,744 |
| Events in quadrant B | 4,787,008 | 546,419 |
| Events in quadrant C | 3,558,606 | 556,101 |
| Events in quadrant D | 4,769,484 | 523,777 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19062 | 1 |
| B | 0 | 19337 | 0 |
| C | 0 | 15968 | 0 |
| D | 0 | 18978 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 154 | 0 |
| B | 0 | 154 | 0 |
| C | 0 | 154 | 0 |
| D | 0 | 154 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7658 | 572 | 7.469313% |
| B | 7658 | 428 | 5.588927% |
| C | 7658 | 96 | 1.253591% |
| D | 7658 | 154 | 2.010969% |
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 | 7658 | 7658 | 396 | 396 | 5.17% | 5.17% |  |
| B | 7658 | 7658 | 133 | 133 | 1.74% | 1.74% |  |
| C | 7658 | 7658 | 9 | 9 | 0.12% | 0.12% |  |
| D | 7658 | 7658 | 41 | 41 | 0.54% | 0.54% |  |
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 | 15 | 239 | 1154561 | 6355.55 | 885 | 865 | 181.5 |
| A | 3 | 1 | 35749 | 192.17 | 885 | 865 | 181.5 |
| A | 1 | 162 | 31488 | 168.7 | 885 | 865 | 181.5 |
| B | 4 | 239 | 1071517 | 6190.36 | 897 | 875 | 173.0 |
| B | 4 | 81 | 63782 | 363.72 | 897 | 875 | 173.0 |
| B | 0 | 214 | 50451 | 286.64 | 897 | 875 | 173.0 |
| C | 14 | 234 | 49124 | 231.99 | 889 | 893 | 207.9 |
| C | 8 | 128 | 13541 | 60.84 | 889 | 893 | 207.9 |
| C | 4 | 175 | 10428 | 45.86 | 889 | 893 | 207.9 |
| D | 8 | 195 | 767820 | 3617.46 | 879 | 855 | 212.0 |
| D | 10 | 199 | 359731 | 1692.67 | 879 | 855 | 212.0 |
| D | 13 | 249 | 66033 | 307.42 | 879 | 855 | 212.0 |
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 |  |