Observation information
- date-obs: 2017-06-05
- time-obs: 23:47:21.135800000
- date-end: 2017-06-06
- time-end: 01:16:24.132600000
- obs_id: G07_046T01_9000001274
- exposure: 1826.44892097
- 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_9000001274_09131cztM0_level2.evt
| modeM0/AS1G07_046T01_9000001274_09131cztM0_level2_quad_clean.evt
|
| Size (bytes) | 289,846,080 | 44,248,320 |
| Size | 276.4 MB
| 42.2 MB
|
| Events in quadrant A | 2,224,849 | 265,311 |
| Events in quadrant B | 2,043,697 | 273,072 |
| Events in quadrant C | 2,099,270 | 261,490 |
| Events in quadrant D | 2,132,388 | 252,633 |
Level1 data integrity
| 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 | 82 | 0 |
| B | 0 | 82 | 0 |
| C | 0 | 82 | 0 |
| D | 0 | 82 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9075 | 2 |
| B | 0 | 8540 | 1 |
| C | 0 | 8941 | 1 |
| D | 0 | 9007 | 1 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 4073 | 28 | 0.687454% |
| B | 4073 | 26 | 0.638350% |
| C | 4073 | 10 | 0.245519% |
| D | 4073 | 37 | 0.908421% |
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 | 5343 | 4073 | 1 | 1 | 0.02% | 0.02% |  |
| B | 5343 | 4074 | 0 | 0 | 0.00% | 0.00% |  |
| C | 5343 | 4073 | 0 | 0 | 0.00% | 0.00% |  |
| D | 5343 | 4074 | 27 | 27 | 0.51% | 0.66% |  |
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 | 148103 | 1424.44 | 511 | 502 | 103.6 |
| A | 1 | 162 | 58738 | 562.01 | 511 | 502 | 103.6 |
| A | 1 | 161 | 12156 | 112.47 | 511 | 502 | 103.6 |
| B | 0 | 214 | 51367 | 514.09 | 514 | 502 | 98.9 |
| B | 12 | 111 | 10987 | 105.97 | 514 | 502 | 98.9 |
| B | 11 | 111 | 8943 | 85.31 | 514 | 502 | 98.9 |
| C | 9 | 68 | 181107 | 1568.22 | 491 | 494 | 115.2 |
| C | 13 | 61 | 3622 | 27.16 | 491 | 494 | 115.2 |
| C | 8 | 222 | 1227 | 6.36 | 491 | 494 | 115.2 |
| D | 1 | 52 | 204603 | 1720.87 | 491 | 479 | 118.6 |
| D | 2 | 14 | 18276 | 150.04 | 491 | 479 | 118.6 |
| D | 8 | 195 | 17933 | 147.15 | 491 | 479 | 118.6 |
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 |  |