Observation information
- date-obs: 2017-05-19
- time-obs: 14:34:55.221700000
- date-end: 2017-05-19
- time-end: 16:55:51.223100000
- obs_id: G07_046T01_9000001236
- exposure: 3644.57998952
- 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_08874cztM0_level2.evt
| modeM0/AS1G07_046T01_9000001236_08874cztM0_level2_quad_clean.evt
|
| Size (bytes) | 486,083,520 | 79,649,280 |
| Size | 463.6 MB
| 76.0 MB
|
| Events in quadrant A | 3,710,322 | 497,803 |
| Events in quadrant B | 3,243,792 | 500,916 |
| Events in quadrant C | 3,811,357 | 489,107 |
| Events in quadrant D | 3,526,078 | 482,194 |
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 | 21 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15223 | 3 |
| B | 0 | 13498 | 2 |
| C | 0 | 15539 | 2 |
| D | 0 | 14254 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6325 | 103 | 1.628458% |
| B | 6325 | 82 | 1.296443% |
| C | 6325 | 193 | 3.051383% |
| D | 6325 | 59 | 0.932806% |
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 | 7495 | 6325 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7495 | 6325 | 1 | 1 | 0.01% | 0.02% |  |
| C | 7495 | 6325 | 132 | 132 | 1.76% | 2.09% |  |
| D | 7495 | 6326 | 6 | 6 | 0.08% | 0.09% |  |
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 | 549352 | 3310.85 | 817 | 801 | 165.7 |
| A | 5 | 16 | 8347 | 45.54 | 817 | 801 | 165.7 |
| A | 0 | 226 | 7663 | 41.42 | 817 | 801 | 165.7 |
| B | 12 | 111 | 16412 | 99.1 | 822 | 806 | 157.5 |
| B | 10 | 252 | 15152 | 91.1 | 822 | 806 | 157.5 |
| B | 0 | 213 | 15031 | 90.33 | 822 | 806 | 157.5 |
| C | 9 | 68 | 702929 | 3829.9 | 793 | 800 | 183.3 |
| C | 1 | 3 | 12791 | 65.41 | 793 | 800 | 183.3 |
| C | 13 | 61 | 5978 | 28.24 | 793 | 800 | 183.3 |
| D | 8 | 195 | 322874 | 1619.26 | 796 | 780 | 198.9 |
| D | 1 | 52 | 143807 | 719.04 | 796 | 780 | 198.9 |
| D | 2 | 234 | 21497 | 104.15 | 796 | 780 | 198.9 |
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 |  |