Observation information
- date-obs: 2018-07-13
- time-obs: 19:40:00.297800000
- date-end: 2018-07-13
- time-end: 22:14:53.295600000
- obs_id: G08_028T01_9000002220
- exposure: 4026.79893336
- 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/AS1G08_028T01_9000002220_15093cztM0_level2.evt
| modeM0/AS1G08_028T01_9000002220_15093cztM0_level2_quad_clean.evt
|
| Size (bytes) | 500,762,880 | 93,456,000 |
| Size | 477.6 MB
| 89.1 MB
|
| Events in quadrant A | 3,437,197 | 586,915 |
| Events in quadrant B | 3,822,236 | 608,926 |
| Events in quadrant C | 3,868,201 | 586,898 |
| Events in quadrant D | 3,560,915 | 557,964 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14765 | 3 |
| B | 0 | 15797 | 2 |
| C | 0 | 15801 | 2 |
| D | 0 | 15403 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 144 | 0 |
| B | 0 | 144 | 0 |
| C | 0 | 144 | 0 |
| D | 0 | 144 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 22 | 0 |
| C | 0 | 22 | 0 |
| D | 0 | 22 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7023 | 75 | 1.067920% |
| B | 7023 | 92 | 1.309981% |
| C | 7023 | 77 | 1.096398% |
| D | 7023 | 127 | 1.808344% |
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 | 9294 | 7024 | 0 | 0 | 0.00% | 0.00% |  |
| B | 9294 | 7025 | 0 | 0 | 0.00% | 0.00% |  |
| C | 9294 | 7025 | 2 | 2 | 0.02% | 0.03% |  |
| D | 9294 | 7025 | 64 | 64 | 0.69% | 0.91% |  |
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 | 7724 | 38.18 | 892 | 876 | 179.4 |
| A | 12 | 194 | 6626 | 32.06 | 892 | 876 | 179.4 |
| A | 12 | 189 | 6549 | 31.63 | 892 | 876 | 179.4 |
| B | 3 | 64 | 322587 | 1885.83 | 895 | 872 | 170.6 |
| B | 12 | 111 | 20588 | 115.57 | 895 | 872 | 170.6 |
| B | 11 | 111 | 18222 | 101.7 | 895 | 872 | 170.6 |
| C | 3 | 233 | 322120 | 1581.77 | 877 | 884 | 203.1 |
| C | 3 | 9 | 116027 | 566.96 | 877 | 884 | 203.1 |
| C | 14 | 234 | 9404 | 41.95 | 877 | 884 | 203.1 |
| D | 10 | 70 | 260808 | 1223.11 | 868 | 845 | 212.5 |
| D | 13 | 104 | 28764 | 131.36 | 868 | 845 | 212.5 |
| D | 2 | 234 | 23380 | 106.03 | 868 | 845 | 212.5 |
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 |  |