Observation information
- date-obs: 2017-04-14
- time-obs: 22:12:19.467100000
- date-end: 2017-04-15
- time-end: 00:20:03.463600000
- obs_id: G07_046T01_9000001162
- exposure: 4864.41251378
- 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_9000001162_08360cztM0_level2.evt
| modeM0/AS1G07_046T01_9000001162_08360cztM0_level2_quad_clean.evt
|
| Size (bytes) | 481,340,160 | 94,982,400 |
| Size | 459.0 MB
| 90.6 MB
|
| Events in quadrant A | 3,959,970 | 585,831 |
| Events in quadrant B | 3,391,191 | 614,517 |
| Events in quadrant C | 3,087,605 | 617,723 |
| Events in quadrant D | 3,678,011 | 585,641 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16260 | 3 |
| B | 0 | 14654 | 2 |
| C | 0 | 13800 | 2 |
| D | 0 | 15683 | 2 |
| 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 | 138 | 0 |
| B | 0 | 138 | 0 |
| C | 0 | 138 | 0 |
| D | 0 | 138 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6779 | 414 | 6.107095% |
| B | 6779 | 53 | 0.781826% |
| C | 6779 | 11 | 0.162266% |
| D | 6779 | 42 | 0.619560% |
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 | 7664 | 6780 | 317 | 317 | 4.14% | 4.68% |  |
| B | 7664 | 6780 | 7 | 7 | 0.09% | 0.10% |  |
| C | 7664 | 6780 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7664 | 6780 | 14 | 14 | 0.18% | 0.21% |  |
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 | 15 | 236 | 834558 | 5187.8 | 785 | 769 | 160.7 |
| A | 15 | 239 | 58974 | 362.15 | 785 | 769 | 160.7 |
| A | 13 | 251 | 41825 | 255.45 | 785 | 769 | 160.7 |
| B | 4 | 173 | 104575 | 660.1 | 815 | 797 | 157.2 |
| B | 12 | 0 | 42561 | 265.65 | 815 | 797 | 157.2 |
| B | 0 | 214 | 37354 | 232.53 | 815 | 797 | 157.2 |
| C | 13 | 61 | 5969 | 27.93 | 791 | 794 | 185.3 |
| C | 3 | 202 | 1933 | 6.14 | 791 | 794 | 185.3 |
| C | -1 | -1 | -1 | -1.0 | 791 | 794 | 185.3 |
| D | 1 | 52 | 392449 | 2025.63 | 785 | 763 | 193.4 |
| D | 2 | 152 | 137158 | 705.38 | 785 | 763 | 193.4 |
| D | 2 | 14 | 56911 | 290.37 | 785 | 763 | 193.4 |
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 |  |