Observation information
- date-obs: 2019-06-14
- time-obs: 11:46:29.854600000
- date-end: 2019-06-14
- time-end: 13:59:42.853000000
- obs_id: T03_117T01_9000002988
- exposure: 3046.37622663
- sourceid: GRS 1915+105
- observer: tbelloni
- ra_pnt: 288.7981
- dec_pnt: 10.94577
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T03_117T01_9000002988_20062cztM0_level2.evt
| modeM0/AS1T03_117T01_9000002988_20062cztM0_level2_quad_clean.evt
|
| Size (bytes) | 494,170,560 | 76,435,200 |
| Size | 471.3 MB
| 72.9 MB
|
| Events in quadrant A | 3,539,133 | 481,286 |
| Events in quadrant B | 3,580,835 | 483,532 |
| Events in quadrant C | 3,525,686 | 455,598 |
| Events in quadrant D | 3,896,615 | 458,192 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 18 | 0 |
| C | 0 | 18 | 0 |
| D | 0 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14453 | 2 |
| B | 0 | 14553 | 2 |
| C | 0 | 14254 | 2 |
| D | 0 | 15595 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6248 | 137 | 2.192702% |
| B | 6248 | 151 | 2.416773% |
| C | 6248 | 161 | 2.576825% |
| D | 6248 | 146 | 2.336748% |
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 | 7578 | 6249 | 2 | 2 | 0.03% | 0.03% |  |
| B | 7578 | 6249 | 7 | 7 | 0.09% | 0.11% |  |
| C | 7578 | 6249 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7578 | 6249 | 43 | 43 | 0.57% | 0.69% |  |
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 | 14 | 238 | 24604 | 130.66 | 913 | 899 | 181.4 |
| A | 0 | 226 | 8043 | 39.38 | 913 | 899 | 181.4 |
| A | 3 | 137 | 7008 | 33.67 | 913 | 899 | 181.4 |
| B | 4 | 80 | 45586 | 264.59 | 901 | 883 | 169.0 |
| B | 12 | 111 | 19740 | 111.61 | 901 | 883 | 169.0 |
| B | 11 | 111 | 17860 | 100.49 | 901 | 883 | 169.0 |
| C | 14 | 238 | 139172 | 700.87 | 866 | 877 | 197.3 |
| C | 13 | 61 | 5992 | 25.92 | 866 | 877 | 197.3 |
| C | 3 | 233 | 4609 | 18.91 | 866 | 877 | 197.3 |
| D | 1 | 52 | 373273 | 1744.2 | 887 | 865 | 213.5 |
| D | 2 | 184 | 114616 | 532.76 | 887 | 865 | 213.5 |
| D | 12 | 218 | 46910 | 215.66 | 887 | 865 | 213.5 |
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 |  |