Observation information
- date-obs: 2017-09-19
- time-obs: 17:03:14.533000000
- date-end: 2017-09-19
- time-end: 19:13:16.533600000
- obs_id: A03_097T01_9000001540
- exposure: 4052.80168327
- 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_10696cztM0_level2.evt
| modeM0/AS1A03_097T01_9000001540_10696cztM0_level2_quad_clean.evt
|
| Size (bytes) | 539,003,520 | 91,552,320 |
| Size | 514.0 MB
| 87.3 MB
|
| Events in quadrant A | 3,129,998 | 600,339 |
| Events in quadrant B | 4,303,554 | 598,104 |
| Events in quadrant C | 2,956,663 | 600,091 |
| Events in quadrant D | 5,517,036 | 544,630 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 17 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13255 | 3 |
| B | 0 | 16765 | 2 |
| C | 0 | 12792 | 2 |
| D | 0 | 20728 | 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 | 6145 | 44 | 0.716029% |
| B | 6145 | 323 | 5.256306% |
| C | 6145 | 38 | 0.618389% |
| D | 6145 | 345 | 5.614321% |
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 | 7505 | 6147 | 3 | 3 | 0.04% | 0.05% |  |
| B | 7505 | 6147 | 227 | 227 | 3.02% | 3.69% |  |
| C | 7505 | 6147 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7505 | 6147 | 263 | 263 | 3.50% | 4.28% |  |
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 | 8 | 5 | 41699 | 265.93 | 770 | 756 | 154.0 |
| A | 1 | 162 | 29065 | 183.87 | 770 | 756 | 154.0 |
| A | 14 | 254 | 22744 | 142.81 | 770 | 756 | 154.0 |
| B | 4 | 239 | 1178683 | 8363.49 | 764 | 748 | 140.8 |
| B | 0 | 85 | 38229 | 266.12 | 764 | 748 | 140.8 |
| B | 15 | 204 | 35864 | 249.33 | 764 | 748 | 140.8 |
| C | 14 | 234 | 8460 | 44.51 | 755 | 760 | 173.0 |
| C | 13 | 61 | 5649 | 28.26 | 755 | 760 | 173.0 |
| C | 8 | 222 | 2202 | 8.33 | 755 | 760 | 173.0 |
| D | 10 | 199 | 783547 | 4462.85 | 734 | 715 | 175.4 |
| D | 2 | 16 | 644710 | 3671.36 | 734 | 715 | 175.4 |
| D | 8 | 195 | 466235 | 2653.89 | 734 | 715 | 175.4 |
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 |  |