Observation information
- date-obs: 2017-07-27
- time-obs: 17:15:29.931900000
- date-end: 2017-07-27
- time-end: 19:15:12.934700000
- obs_id: G07_046T01_9000001408
- exposure: 4250.27189225
- 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_9000001408_09897cztM0_level2.evt
| modeM0/AS1G07_046T01_9000001408_09897cztM0_level2_quad_clean.evt
|
| Size (bytes) | 440,962,560 | 88,706,880 |
| Size | 420.5 MB
| 84.6 MB
|
| Events in quadrant A | 3,101,576 | 560,918 |
| Events in quadrant B | 2,927,797 | 589,592 |
| Events in quadrant C | 2,809,405 | 581,536 |
| Events in quadrant D | 4,103,916 | 531,135 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13288 | 2 |
| B | 0 | 12749 | 1 |
| C | 0 | 12504 | 1 |
| D | 0 | 15991 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6053 | 156 | 2.577234% |
| B | 6053 | 43 | 0.710392% |
| C | 6053 | 23 | 0.379977% |
| D | 6053 | 378 | 6.244837% |
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 | 7183 | 6054 | 58 | 58 | 0.81% | 0.96% |  |
| B | 7183 | 6054 | 4 | 4 | 0.06% | 0.07% |  |
| C | 7183 | 6054 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7183 | 6054 | 351 | 351 | 4.89% | 5.80% |  |
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 | 14 | 111 | 248275 | 1713.07 | 715 | 701 | 144.5 |
| A | 8 | 15 | 89878 | 617.05 | 715 | 701 | 144.5 |
| A | 15 | 239 | 11779 | 76.65 | 715 | 701 | 144.5 |
| B | 4 | 81 | 57843 | 408.64 | 730 | 713 | 139.8 |
| B | 12 | 111 | 16129 | 110.27 | 730 | 713 | 139.8 |
| B | 11 | 111 | 13626 | 92.37 | 730 | 713 | 139.8 |
| C | 13 | 61 | 5172 | 26.61 | 718 | 724 | 167.1 |
| C | 10 | 22 | 4049 | 19.89 | 718 | 724 | 167.1 |
| C | 14 | 67 | 2612 | 11.3 | 718 | 724 | 167.1 |
| D | 1 | 52 | 976869 | 5370.07 | 695 | 681 | 181.8 |
| D | 8 | 195 | 275202 | 1510.16 | 695 | 681 | 181.8 |
| D | 8 | 32 | 58441 | 317.74 | 695 | 681 | 181.8 |
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 |  |