Observation information
- date-obs: 2017-09-19
- time-obs: 13:43:00.533700000
- date-end: 2017-09-19
- time-end: 15:46:56.533200000
- obs_id: A03_097T01_9000001540
- exposure: 4767.58305322
- 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_10694cztM0_level2.evt
| modeM0/AS1A03_097T01_9000001540_10694cztM0_level2_quad_clean.evt
|
| Size (bytes) | 557,904,960 | 100,143,360 |
| Size | 532.1 MB
| 95.5 MB
|
| Events in quadrant A | 3,129,993 | 669,562 |
| Events in quadrant B | 3,961,006 | 670,304 |
| Events in quadrant C | 2,917,981 | 663,077 |
| Events in quadrant D | 6,464,436 | 594,021 |
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 | 13447 | 2 |
| B | 0 | 15793 | 1 |
| C | 0 | 12884 | 1 |
| D | 0 | 23615 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6236 | 80 | 1.282874% |
| B | 6236 | 232 | 3.720334% |
| C | 6236 | 40 | 0.641437% |
| D | 6236 | 681 | 10.920462% |
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 | 7436 | 6237 | 10 | 10 | 0.13% | 0.16% |  |
| B | 7436 | 6237 | 115 | 115 | 1.55% | 1.84% |  |
| C | 7436 | 6237 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7435 | 6235 | 549 | 549 | 7.38% | 8.81% |  |
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 | 174 | 66670 | 425.42 | 768 | 752 | 154.9 |
| A | 8 | 5 | 43189 | 273.88 | 768 | 752 | 154.9 |
| A | 1 | 162 | 26308 | 164.93 | 768 | 752 | 154.9 |
| B | 4 | 239 | 827534 | 5793.12 | 762 | 744 | 142.7 |
| B | 0 | 197 | 35990 | 246.96 | 762 | 744 | 142.7 |
| B | 0 | 168 | 31631 | 216.42 | 762 | 744 | 142.7 |
| C | 13 | 61 | 5482 | 27.6 | 746 | 751 | 171.4 |
| C | 14 | 234 | 5241 | 26.19 | 746 | 751 | 171.4 |
| C | 8 | 222 | 2480 | 10.09 | 746 | 751 | 171.4 |
| D | 2 | 16 | 1334267 | 7744.96 | 719 | 700 | 172.2 |
| D | 10 | 199 | 976603 | 5667.75 | 719 | 700 | 172.2 |
| D | 1 | 52 | 462046 | 2679.36 | 719 | 700 | 172.2 |
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 |  |