Observation information
- date-obs: 2019-05-16
- time-obs: 02:24:50.277700000
- date-end: 2019-05-16
- time-end: 04:38:29.274500000
- obs_id: T03_116T01_9000002916
- exposure: 4115.92590669
- sourceid: GRS 1915+105
- observer: bari
- ra_pnt: 288.7981
- dec_pnt: 10.94577
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T03_116T01_9000002916_19627cztM0_level2.evt
| modeM0/AS1T03_116T01_9000002916_19627cztM0_level2_quad_clean.evt
|
| Size (bytes) | 501,528,960 | 99,645,120 |
| Size | 478.3 MB
| 95.0 MB
|
| Events in quadrant A | 3,300,055 | 663,836 |
| Events in quadrant B | 3,351,363 | 676,289 |
| Events in quadrant C | 3,418,893 | 629,196 |
| Events in quadrant D | 4,681,335 | 598,944 |
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 | 13536 | 2 |
| B | 0 | 13742 | 2 |
| C | 0 | 13913 | 2 |
| D | 0 | 18181 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15 | 0 |
| B | 0 | 16 | 0 |
| C | 0 | 16 | 0 |
| D | 0 | 16 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6438 | 50 | 0.776639% |
| B | 6438 | 73 | 1.133893% |
| C | 6438 | 96 | 1.491146% |
| D | 6438 | 351 | 5.452004% |
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 | 7763 | 6438 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7763 | 6439 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7763 | 6439 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7763 | 6438 | 245 | 245 | 3.16% | 3.81% |  |
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 | 0 | 226 | 7398 | 38.82 | 855 | 843 | 168.8 |
| A | 13 | 254 | 6919 | 35.99 | 855 | 843 | 168.8 |
| A | 3 | 137 | 6206 | 31.76 | 855 | 843 | 168.8 |
| B | 12 | 111 | 18440 | 110.62 | 849 | 830 | 159.2 |
| B | 11 | 111 | 16194 | 96.51 | 849 | 830 | 159.2 |
| B | 14 | 111 | 14277 | 84.47 | 849 | 830 | 159.2 |
| C | 3 | 233 | 141923 | 751.4 | 807 | 813 | 187.8 |
| C | 14 | 238 | 128371 | 679.24 | 807 | 813 | 187.8 |
| C | 13 | 61 | 5789 | 26.5 | 807 | 813 | 187.8 |
| D | 12 | 218 | 792438 | 4066.16 | 808 | 787 | 194.7 |
| D | 1 | 52 | 739579 | 3794.66 | 808 | 787 | 194.7 |
| D | 7 | 238 | 28124 | 140.41 | 808 | 787 | 194.7 |
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 |  |