Observation information
- date-obs: 2017-05-19
- time-obs: 19:38:39.223700000
- date-end: 2017-05-19
- time-end: 21:57:04.222800000
- obs_id: G07_046T01_9000001236
- exposure: 4207.79058677
- sourceid: GRS 1915+105
- observer: jsyadav
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G07_046T01_9000001236_08877cztM0_level2.evt
| modeM0/AS1G07_046T01_9000001236_08877cztM0_level2_quad_clean.evt
|
| Size (bytes) | 600,696,000 | 85,999,680 |
| Size | 572.9 MB
| 82.0 MB
|
| Events in quadrant A | 4,500,674 | 524,850 |
| Events in quadrant B | 4,302,836 | 521,864 |
| Events in quadrant C | 4,617,478 | 519,231 |
| Events in quadrant D | 4,252,559 | 505,946 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 7 | 0 |
| B | 0 | 7 | 0 |
| C | 0 | 7 | 0 |
| D | 0 | 7 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18348 | 2 |
| B | 0 | 17661 | 2 |
| C | 0 | 18883 | 4 |
| D | 0 | 17602 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 158 | 0 |
| B | 0 | 158 | 0 |
| C | 0 | 158 | 0 |
| D | 0 | 158 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7656 | 184 | 2.403344% |
| B | 7656 | 295 | 3.853187% |
| C | 7655 | 101 | 1.319399% |
| D | 7656 | 159 | 2.076803% |
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 | 8306 | 7659 | 2 | 2 | 0.02% | 0.03% |  |
| B | 8306 | 7659 | 105 | 105 | 1.26% | 1.37% |  |
| C | 8306 | 7659 | 12 | 12 | 0.14% | 0.16% |  |
| D | 8306 | 7658 | 59 | 59 | 0.71% | 0.77% |  |
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 | 5 | 770013 | 3881.49 | 958 | 936 | 198.1 |
| A | 0 | 128 | 16198 | 77.03 | 958 | 936 | 198.1 |
| A | 5 | 16 | 13393 | 62.87 | 958 | 936 | 198.1 |
| B | 10 | 16 | 445377 | 2378.1 | 961 | 937 | 186.9 |
| B | 6 | 51 | 68018 | 358.93 | 961 | 937 | 186.9 |
| B | 4 | 173 | 31303 | 162.48 | 961 | 937 | 186.9 |
| C | 9 | 68 | 903122 | 4135.45 | 931 | 934 | 218.2 |
| C | 14 | 234 | 72633 | 328.65 | 931 | 934 | 218.2 |
| C | 1 | 3 | 11624 | 49.0 | 931 | 934 | 218.2 |
| D | 8 | 195 | 302231 | 1325.29 | 925 | 900 | 227.4 |
| D | 7 | 71 | 196711 | 861.2 | 925 | 900 | 227.4 |
| D | 1 | 52 | 143438 | 626.9 | 925 | 900 | 227.4 |
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 |  |