Observation information
- date-obs: 2017-05-19
- time-obs: 16:14:59.222400000
- date-end: 2017-05-19
- time-end: 18:39:50.223600000
- obs_id: G07_046T01_9000001236
- exposure: 4095.90066118
- 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_9000001236_08875cztM0_level2.evt
| modeM0/AS1G07_046T01_9000001236_08875cztM0_level2_quad_clean.evt
|
| Size (bytes) | 505,042,560 | 84,643,200 |
| Size | 481.6 MB
| 80.7 MB
|
| Events in quadrant A | 3,912,682 | 530,382 |
| Events in quadrant B | 3,319,830 | 533,266 |
| Events in quadrant C | 4,071,475 | 523,665 |
| Events in quadrant D | 3,538,307 | 510,444 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16104 | 3 |
| B | 0 | 14102 | 2 |
| C | 0 | 16632 | 2 |
| D | 0 | 14767 | 2 |
| 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 | 6681 | 136 | 2.035623% |
| B | 6681 | 122 | 1.826074% |
| C | 6681 | 112 | 1.676396% |
| D | 6681 | 97 | 1.451878% |
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 | 8691 | 6681 | 10 | 10 | 0.12% | 0.15% |  |
| B | 8691 | 6681 | 5 | 5 | 0.06% | 0.07% |  |
| C | 8691 | 6681 | 4 | 4 | 0.05% | 0.06% |  |
| D | 8691 | 6682 | 8 | 8 | 0.09% | 0.12% |  |
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 | 5 | 655666 | 3852.15 | 833 | 818 | 170.0 |
| A | 5 | 16 | 41140 | 237.19 | 833 | 818 | 170.0 |
| A | 0 | 226 | 7704 | 40.51 | 833 | 818 | 170.0 |
| B | 0 | 197 | 26114 | 157.39 | 837 | 818 | 160.7 |
| B | 0 | 214 | 19348 | 115.29 | 837 | 818 | 160.7 |
| B | 12 | 111 | 17074 | 101.15 | 837 | 818 | 160.7 |
| C | 9 | 68 | 880289 | 4667.4 | 811 | 814 | 188.4 |
| C | 1 | 3 | 22351 | 114.29 | 811 | 814 | 188.4 |
| C | 3 | 254 | 6634 | 30.88 | 811 | 814 | 188.4 |
| D | 8 | 195 | 209675 | 1034.72 | 809 | 790 | 201.9 |
| D | 1 | 52 | 146793 | 723.23 | 809 | 790 | 201.9 |
| D | 6 | 225 | 52586 | 256.57 | 809 | 790 | 201.9 |
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 |  |