Observation information
- date-obs: 2017-09-19
- time-obs: 15:28:33.533100000
- date-end: 2017-09-19
- time-end: 17:30:23.533300000
- obs_id: A03_097T01_9000001540
- exposure: 4202.85590449
- 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_10695cztM0_level2.evt
| modeM0/AS1A03_097T01_9000001540_10695cztM0_level2_quad_clean.evt
|
| Size (bytes) | 544,320,000 | 92,125,440 |
| Size | 519.1 MB
| 87.9 MB
|
| Events in quadrant A | 2,992,692 | 613,569 |
| Events in quadrant B | 3,988,328 | 610,425 |
| Events in quadrant C | 2,880,866 | 608,119 |
| Events in quadrant D | 6,214,388 | 536,363 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12808 | 2 |
| B | 0 | 15647 | 1 |
| C | 0 | 12497 | 1 |
| D | 0 | 22835 | 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 | 6025 | 83 | 1.377593% |
| B | 6025 | 307 | 5.095436% |
| C | 6025 | 71 | 1.178423% |
| D | 6025 | 644 | 10.688797% |
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 | 7310 | 6025 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7310 | 6026 | 186 | 186 | 2.54% | 3.09% |  |
| C | 7310 | 6026 | 2 | 2 | 0.03% | 0.03% |  |
| D | 7310 | 6025 | 513 | 513 | 7.02% | 8.51% |  |
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 | 1 | 162 | 30908 | 199.88 | 751 | 738 | 150.9 |
| A | 14 | 254 | 11669 | 72.42 | 751 | 738 | 150.9 |
| A | 1 | 178 | 11383 | 70.52 | 751 | 738 | 150.9 |
| B | 4 | 239 | 956360 | 6953.7 | 743 | 729 | 137.4 |
| B | 15 | 204 | 32513 | 231.28 | 743 | 729 | 137.4 |
| B | 0 | 219 | 31529 | 224.12 | 743 | 729 | 137.4 |
| C | 14 | 234 | 16900 | 95.06 | 734 | 738 | 170.0 |
| C | 13 | 61 | 5533 | 28.2 | 734 | 738 | 170.0 |
| C | 8 | 222 | 2485 | 10.27 | 734 | 738 | 170.0 |
| D | 10 | 199 | 1407407 | 8364.55 | 704 | 685 | 168.2 |
| D | 2 | 16 | 1187623 | 7057.68 | 704 | 685 | 168.2 |
| D | 8 | 195 | 553330 | 3286.1 | 704 | 685 | 168.2 |
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 |  |