Observation information
- date-obs: 2017-10-15
- time-obs: 07:54:54.423800000
- date-end: 2017-10-15
- time-end: 09:58:48.423500000
- obs_id: G08_075T01_9000001616
- exposure: 4105.80405339
- sourceid: Cygnus X-1
- observer: ravibt
- ra_pnt: 299.5903
- dec_pnt: 35.20161
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_075T01_9000001616_11075cztM0_level2.evt
| modeM0/AS1G08_075T01_9000001616_11075cztM0_level2_quad_clean.evt
|
| Size (bytes) | 521,369,280 | 82,537,920 |
| Size | 497.2 MB
| 78.7 MB
|
| Events in quadrant A | 3,666,887 | 524,062 |
| Events in quadrant B | 4,583,541 | 516,661 |
| Events in quadrant C | 2,981,028 | 522,222 |
| Events in quadrant D | 4,124,247 | 489,993 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| 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 | 14943 | 2 |
| B | 0 | 17688 | 2 |
| C | 0 | 13261 | 2 |
| D | 0 | 16425 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6398 | 169 | 2.641450% |
| B | 6398 | 522 | 8.158800% |
| C | 6398 | 95 | 1.484839% |
| D | 6398 | 230 | 3.594873% |
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 | 7208 | 6399 | 7 | 7 | 0.10% | 0.11% |  |
| B | 7208 | 6399 | 244 | 244 | 3.39% | 3.81% |  |
| C | 7208 | 6399 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7208 | 6398 | 82 | 82 | 1.14% | 1.28% |  |
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 | 15 | 592497 | 3656.56 | 798 | 781 | 161.8 |
| A | 0 | 226 | 7070 | 38.86 | 798 | 781 | 161.8 |
| A | 12 | 194 | 6246 | 33.77 | 798 | 781 | 161.8 |
| B | 4 | 239 | 1449187 | 9856.93 | 774 | 756 | 146.9 |
| B | 15 | 204 | 48087 | 322.1 | 774 | 756 | 146.9 |
| B | 0 | 214 | 27597 | 182.66 | 774 | 756 | 146.9 |
| C | 13 | 61 | 5641 | 27.47 | 764 | 768 | 177.4 |
| C | 9 | 204 | 2186 | 7.99 | 764 | 768 | 177.4 |
| C | 3 | 202 | 1856 | 6.13 | 764 | 768 | 177.4 |
| D | 11 | 129 | 508492 | 2782.25 | 763 | 742 | 182.5 |
| D | 10 | 253 | 282600 | 1544.46 | 763 | 742 | 182.5 |
| D | 8 | 195 | 181595 | 991.0 | 763 | 742 | 182.5 |
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 |  |