Observation information
- date-obs: 2018-05-23
- time-obs: 03:54:54.297500000
- date-end: 2018-05-23
- time-end: 06:11:01.292400000
- obs_id: G08_078T01_9000002110
- exposure: 4087.84146418
- sourceid: GRS 1915+105
- observer: ravibt
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_078T01_9000002110_14329cztM0_level2.evt
| modeM0/AS1G08_078T01_9000002110_14329cztM0_level2_quad_clean.evt
|
| Size (bytes) | 482,682,240 | 99,849,600 |
| Size | 460.3 MB
| 95.2 MB
|
| Events in quadrant A | 3,453,034 | 657,957 |
| Events in quadrant B | 3,388,373 | 661,433 |
| Events in quadrant C | 3,518,832 | 634,040 |
| Events in quadrant D | 3,817,360 | 617,919 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14005 | 4 |
| B | 0 | 13782 | 3 |
| C | 0 | 14121 | 3 |
| D | 0 | 15447 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 17 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6488 | 56 | 0.863132% |
| B | 6488 | 64 | 0.986436% |
| C | 6488 | 43 | 0.662762% |
| D | 6488 | 139 | 2.142417% |
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 | 7799 | 6491 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7799 | 6490 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7799 | 6491 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7799 | 6491 | 88 | 88 | 1.13% | 1.36% |  |
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 | 12 | 189 | 112430 | 652.4 | 860 | 846 | 171.0 |
| A | 4 | 2 | 14627 | 80.57 | 860 | 846 | 171.0 |
| A | 8 | 15 | 10831 | 58.38 | 860 | 846 | 171.0 |
| B | 0 | 219 | 30065 | 180.81 | 849 | 832 | 161.7 |
| B | 4 | 173 | 22430 | 133.59 | 849 | 832 | 161.7 |
| B | 12 | 111 | 18341 | 108.3 | 849 | 832 | 161.7 |
| C | 3 | 233 | 333446 | 1772.23 | 815 | 823 | 187.7 |
| C | 14 | 234 | 6353 | 29.46 | 815 | 823 | 187.7 |
| C | 13 | 61 | 5759 | 26.3 | 815 | 823 | 187.7 |
| D | 13 | 122 | 194750 | 995.41 | 819 | 800 | 194.8 |
| D | 5 | 222 | 152055 | 776.28 | 819 | 800 | 194.8 |
| D | 2 | 120 | 127195 | 648.7 | 819 | 800 | 194.8 |
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 |  |