Observation information
- date-obs: 2017-07-27
- time-obs: 22:14:54.939000000
- date-end: 2017-07-28
- time-end: 00:28:53.942700000
- obs_id: G07_046T01_9000001408
- exposure: 3704.38815893
- 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_09900cztM0_level2.evt
| modeM0/AS1G07_046T01_9000001408_09900cztM0_level2_quad_clean.evt
|
| Size (bytes) | 405,025,920 | 86,103,360 |
| Size | 386.3 MB
| 82.1 MB
|
| Events in quadrant A | 2,886,069 | 548,807 |
| Events in quadrant B | 2,986,997 | 574,056 |
| Events in quadrant C | 2,857,551 | 553,256 |
| Events in quadrant D | 3,130,652 | 515,739 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12913 | 525 |
| B | 0 | 13097 | 515 |
| C | 0 | 12875 | 503 |
| D | 0 | 13604 | 601 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 2 |
| B | 0 | 126 | 4 |
| C | 0 | 126 | 2 |
| D | 0 | 126 | 6 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 18 | 2 |
| B | 0 | 18 | 1 |
| C | 0 | 18 | 1 |
| D | 0 | 19 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5938 | 29 | 0.488380% |
| B | 5947 | 44 | 0.739869% |
| C | 5943 | 22 | 0.370183% |
| D | 5936 | 69 | 1.162399% |
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 | 7544 | 6126 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7542 | 6116 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7544 | 6118 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7543 | 6120 | 32 | 32 | 0.42% | 0.52% |  |
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 | 10722 | 66.51 | 747 | 733 | 150.2 |
| A | 0 | 226 | 6805 | 40.43 | 747 | 733 | 150.2 |
| A | 12 | 194 | 5862 | 34.15 | 747 | 733 | 150.2 |
| B | 4 | 81 | 24260 | 165.22 | 756 | 740 | 142.4 |
| B | 12 | 111 | 16333 | 109.53 | 756 | 740 | 142.4 |
| B | 11 | 111 | 13491 | 89.57 | 756 | 740 | 142.4 |
| C | 9 | 221 | 6463 | 33.99 | 729 | 737 | 168.5 |
| C | 13 | 61 | 5351 | 27.39 | 729 | 737 | 168.5 |
| C | 14 | 67 | 3986 | 19.29 | 729 | 737 | 168.5 |
| D | 2 | 16 | 144824 | 783.97 | 709 | 695 | 183.8 |
| D | 1 | 52 | 122831 | 664.34 | 709 | 695 | 183.8 |
| D | 8 | 195 | 88323 | 476.64 | 709 | 695 | 183.8 |
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 |  |