Observation information
- date-obs: 2017-09-19
- time-obs: 22:03:14.533400000
- date-end: 2017-09-19
- time-end: 23:32:19.533000000
- obs_id: A03_097T01_9000001540
- exposure: 2170.32499734
- 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_10699cztM0_level2.evt
| modeM0/AS1A03_097T01_9000001540_10699cztM0_level2_quad_clean.evt
|
| Size (bytes) | 330,114,240 | 45,748,800 |
| Size | 314.8 MB
| 43.6 MB
|
| Events in quadrant A | 1,959,434 | 272,244 |
| Events in quadrant B | 3,446,047 | 273,852 |
| Events in quadrant C | 1,852,223 | 275,031 |
| Events in quadrant D | 2,443,815 | 258,161 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10 | 0 |
| B | 0 | 10 | 0 |
| C | 0 | 10 | 0 |
| D | 0 | 11 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8930 | 1 |
| B | 0 | 13173 | 3 |
| C | 0 | 8750 | 1 |
| D | 0 | 10476 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 86 | 0 |
| B | 0 | 86 | 0 |
| C | 0 | 86 | 0 |
| D | 0 | 86 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4344 | 12 | 0.276243% |
| B | 4343 | 323 | 7.437255% |
| C | 4344 | 5 | 0.115101% |
| D | 4344 | 29 | 0.667587% |
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 | 4344 | 4344 | 2 | 2 | 0.05% | 0.05% |  |
| B | 4344 | 4344 | 255 | 255 | 5.87% | 5.87% |  |
| C | 4344 | 4344 | 1 | 1 | 0.02% | 0.02% |  |
| D | 4344 | 4344 | 41 | 41 | 0.94% | 0.94% |  |
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 | 53423 | 534.17 | 479 | 470 | 99.1 |
| A | 15 | 239 | 25150 | 248.96 | 479 | 470 | 99.1 |
| A | 1 | 162 | 9036 | 86.41 | 479 | 470 | 99.1 |
| B | 4 | 239 | 995334 | 10938.65 | 475 | 463 | 91.0 |
| B | 0 | 85 | 465183 | 5109.62 | 475 | 463 | 91.0 |
| B | 0 | 219 | 65366 | 713.61 | 475 | 463 | 91.0 |
| C | 14 | 234 | 8057 | 69.08 | 471 | 475 | 109.8 |
| C | 14 | 238 | 3942 | 31.59 | 471 | 475 | 109.8 |
| C | 13 | 61 | 3578 | 28.27 | 471 | 475 | 109.8 |
| D | 10 | 199 | 287686 | 2561.43 | 461 | 449 | 112.1 |
| D | 2 | 16 | 196540 | 1748.63 | 461 | 449 | 112.1 |
| D | 12 | 233 | 72852 | 645.65 | 461 | 449 | 112.1 |
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 |  |