Observation information
- date-obs: 2017-05-19
- time-obs: 11:21:35.217000000
- date-end: 2017-05-19
- time-end: 13:30:21.220400000
- obs_id: G07_046T01_9000001236
- exposure: 2490.75717337
- 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_08872cztM0_level2.evt
| modeM0/AS1G07_046T01_9000001236_08872cztM0_level2_quad_clean.evt
|
| Size (bytes) | 700,787,520 | 60,180,480 |
| Size | 668.3 MB
| 57.4 MB
|
| Events in quadrant A | 3,947,412 | 371,032 |
| Events in quadrant B | 9,794,185 | 263,614 |
| Events in quadrant C | 3,279,723 | 375,634 |
| Events in quadrant D | 3,769,251 | 364,687 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 13 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15952 | 3 |
| B | 0 | 33366 | 2 |
| C | 0 | 13498 | 2 |
| D | 0 | 15360 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6386 | 213 | 3.335421% |
| B | 6386 | 2920 | 45.725023% |
| C | 6386 | 75 | 1.174444% |
| D | 6386 | 106 | 1.659881% |
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 | 7671 | 6386 | 99 | 99 | 1.29% | 1.55% |  |
| B | 7671 | 6386 | 2657 | 2657 | 34.64% | 41.61% |  |
| C | 7671 | 6386 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7671 | 6386 | 26 | 26 | 0.34% | 0.41% |  |
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 | 351101 | 2009.72 | 864 | 846 | 174.3 |
| A | 15 | 174 | 261118 | 1493.41 | 864 | 846 | 174.3 |
| A | 5 | 16 | 9218 | 48.04 | 864 | 846 | 174.3 |
| B | 7 | 202 | 6750045 | 51681.65 | 695 | 681 | 130.6 |
| B | 4 | 48 | 286711 | 2190.21 | 695 | 681 | 130.6 |
| B | 0 | 213 | 44544 | 335.87 | 695 | 681 | 130.6 |
| C | 13 | 61 | 6494 | 29.36 | 839 | 846 | 192.4 |
| C | 10 | 22 | 3998 | 16.38 | 839 | 846 | 192.4 |
| C | 3 | 254 | 2569 | 8.96 | 839 | 846 | 192.4 |
| D | 8 | 195 | 369936 | 1790.59 | 841 | 821 | 206.1 |
| D | 7 | 71 | 97074 | 466.93 | 841 | 821 | 206.1 |
| D | 2 | 14 | 40825 | 194.06 | 841 | 821 | 206.1 |
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 |  |