Observation information
- date-obs: 2016-06-13
- time-obs: 01:36:37.120400000
- date-end: 2016-06-13
- time-end: 03:30:48.116400000
- obs_id: G05_189T01_9000000492
- exposure: 3340.81448879
- sourceid: GRS 1915+105
- observer: anuj
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G05_189T01_9000000492_03834cztM0_level2.evt
| modeM0/AS1G05_189T01_9000000492_03834cztM0_level2_quad_clean.evt
|
| Size (bytes) | 382,426,560 | 65,609,280 |
| Size | 364.7 MB
| 62.6 MB
|
| Events in quadrant A | 2,992,528 | 404,928 |
| Events in quadrant B | 2,900,828 | 409,116 |
| Events in quadrant C | 2,649,784 | 394,032 |
| Events in quadrant D | 2,655,755 | 385,119 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12499 | 2 |
| B | 0 | 12033 | 1 |
| C | 0 | 11676 | 1 |
| D | 0 | 11985 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 114 | 0 |
| B | 0 | 114 | 0 |
| C | 0 | 114 | 0 |
| D | 0 | 114 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5626 | 62 | 1.102026% |
| B | 5626 | 64 | 1.137576% |
| C | 5626 | 54 | 0.959829% |
| D | 5626 | 46 | 0.817632% |
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 | 6851 | 5626 | 10 | 10 | 0.15% | 0.18% |  |
| B | 6851 | 5626 | 2 | 2 | 0.03% | 0.04% |  |
| C | 6851 | 5626 | 6 | 6 | 0.09% | 0.11% |  |
| D | 6851 | 5627 | 20 | 20 | 0.29% | 0.36% |  |
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 | 15 | 234 | 311004 | 2232.7 | 682 | 669 | 139.0 |
| A | 13 | 251 | 27296 | 191.57 | 682 | 669 | 139.0 |
| A | 0 | 199 | 17718 | 122.66 | 682 | 669 | 139.0 |
| B | 15 | 204 | 110627 | 842.63 | 686 | 670 | 130.5 |
| B | 14 | 167 | 79863 | 606.87 | 686 | 670 | 130.5 |
| B | 4 | 81 | 33933 | 254.9 | 686 | 670 | 130.5 |
| C | 2 | 53 | 51538 | 332.89 | 651 | 655 | 152.9 |
| C | 9 | 247 | 17428 | 109.73 | 651 | 655 | 152.9 |
| C | 10 | 65 | 14551 | 90.91 | 651 | 655 | 152.9 |
| D | 13 | 248 | 163204 | 1018.89 | 651 | 633 | 159.6 |
| D | 2 | 14 | 17684 | 106.86 | 651 | 633 | 159.6 |
| D | 13 | 223 | 10652 | 62.79 | 651 | 633 | 159.6 |
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 |  |
| Veto Counter |  |