Observation information
- date-obs: 2016-07-20
- time-obs: 07:08:22.974400000
- date-end: 2016-07-20
- time-end: 09:10:44.972100000
- obs_id: G05_167T02_9000000546
- exposure: 2567.65356041
- sourceid: GRS1915+105
- observer: dipankar
- ra_pnt: 288.7981
- dec_pnt: 10.94578
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G05_167T02_9000000546_04385cztM0_level2.evt
| modeM0/AS1G05_167T02_9000000546_04385cztM0_level2_quad_clean.evt
|
| Size (bytes) | 433,586,880 | 52,623,360 |
| Size | 413.5 MB
| 50.2 MB
|
| Events in quadrant A | 3,162,835 | 292,755 |
| Events in quadrant B | 3,053,960 | 302,720 |
| Events in quadrant C | 3,334,876 | 291,985 |
| Events in quadrant D | 3,165,868 | 280,546 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13125 | 2 |
| B | 0 | 12661 | 1 |
| C | 0 | 13778 | 1 |
| D | 0 | 13457 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6092 | 90 | 1.477347% |
| B | 6092 | 94 | 1.543007% |
| C | 6092 | 140 | 2.298096% |
| D | 6092 | 71 | 1.165463% |
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 | 7342 | 6093 | 4 | 4 | 0.05% | 0.07% |  |
| B | 7342 | 6093 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7342 | 6093 | 63 | 63 | 0.86% | 1.03% |  |
| D | 7342 | 6093 | 19 | 19 | 0.26% | 0.31% |  |
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 | 13 | 251 | 152447 | 966.33 | 769 | 754 | 157.0 |
| A | 7 | 16 | 20493 | 125.74 | 769 | 754 | 157.0 |
| A | 8 | 15 | 18086 | 110.41 | 769 | 754 | 157.0 |
| B | 14 | 167 | 31131 | 205.89 | 777 | 760 | 147.5 |
| B | 12 | 111 | 14020 | 89.89 | 777 | 760 | 147.5 |
| B | 0 | 228 | 12279 | 78.09 | 777 | 760 | 147.5 |
| C | 9 | 247 | 364422 | 2109.88 | 738 | 744 | 172.4 |
| C | 14 | 48 | 64863 | 371.98 | 738 | 744 | 172.4 |
| C | 9 | 16 | 13972 | 76.74 | 738 | 744 | 172.4 |
| D | 2 | 37 | 144374 | 822.63 | 733 | 712 | 174.6 |
| D | 2 | 63 | 119262 | 678.83 | 733 | 712 | 174.6 |
| D | 13 | 239 | 81736 | 463.95 | 733 | 712 | 174.6 |
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 |  |