Observation information
- date-obs: 2016-06-12
- time-obs: 07:58:44.137400000
- date-end: 2016-06-12
- time-end: 10:06:40.134500000
- obs_id: G05_189T01_9000000492
- exposure: 3104.8022487
- 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_03823cztM0_level2.evt
| modeM0/AS1G05_189T01_9000000492_03823cztM0_level2_quad_clean.evt
|
| Size (bytes) | 526,561,920 | 62,202,240 |
| Size | 502.2 MB
| 59.3 MB
|
| Events in quadrant A | 3,235,183 | 365,382 |
| Events in quadrant B | 3,543,958 | 368,297 |
| Events in quadrant C | 3,145,903 | 359,385 |
| Events in quadrant D | 5,565,593 | 321,296 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14020 | 2 |
| B | 0 | 14588 | 1 |
| C | 0 | 13964 | 1 |
| D | 0 | 21270 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6721 | 140 | 2.083023% |
| B | 6721 | 130 | 1.934236% |
| C | 6721 | 77 | 1.145663% |
| D | 6721 | 900 | 13.390864% |
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 | 7676 | 6721 | 16 | 16 | 0.21% | 0.24% |  |
| B | 7676 | 6721 | 6 | 6 | 0.08% | 0.09% |  |
| C | 7676 | 6721 | 1 | 1 | 0.01% | 0.01% |  |
| D | 7676 | 6721 | 907 | 907 | 11.82% | 13.50% |  |
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 | 50 | 49006 | 288.46 | 815 | 798 | 167.1 |
| A | 13 | 251 | 29613 | 172.42 | 815 | 798 | 167.1 |
| A | 8 | 15 | 10393 | 57.41 | 815 | 798 | 167.1 |
| B | 15 | 204 | 257352 | 1580.62 | 823 | 803 | 162.3 |
| B | 14 | 167 | 50363 | 305.34 | 823 | 803 | 162.3 |
| B | 10 | 16 | 34006 | 204.57 | 823 | 803 | 162.3 |
| C | 1 | 16 | 27734 | 146.83 | 781 | 787 | 183.5 |
| C | 2 | 53 | 24107 | 127.07 | 781 | 787 | 183.5 |
| C | 10 | 65 | 21223 | 111.36 | 781 | 787 | 183.5 |
| D | 12 | 79 | 2304566 | 12348.16 | 764 | 741 | 186.6 |
| D | 14 | 34 | 127260 | 678.12 | 764 | 741 | 186.6 |
| D | 12 | 227 | 122978 | 655.17 | 764 | 741 | 186.6 |
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 |  |
| _ROLL_ROT |  |
| _Roll_DEC |  |
| _Roll_RA |  |
| Veto Counter |  |