Observation information
- date-obs: 2019-05-16
- time-obs: 00:29:50.280900000
- date-end: 2019-05-16
- time-end: 02:49:49.278000000
- obs_id: T03_116T01_9000002916
- exposure: 3940.521308
- sourceid: GRS 1915+105
- observer: bari
- ra_pnt: 288.7981
- dec_pnt: 10.94577
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T03_116T01_9000002916_19626cztM0_level2.evt
| modeM0/AS1T03_116T01_9000002916_19626cztM0_level2_quad_clean.evt
|
| Size (bytes) | 455,613,120 | 93,631,680 |
| Size | 434.5 MB
| 89.3 MB
|
| Events in quadrant A | 3,098,725 | 613,414 |
| Events in quadrant B | 3,253,701 | 630,258 |
| Events in quadrant C | 3,215,622 | 590,232 |
| Events in quadrant D | 3,811,951 | 571,706 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12931 | 2 |
| B | 0 | 13427 | 2 |
| C | 0 | 13282 | 2 |
| D | 0 | 15273 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 22 | 0 |
| B | 0 | 23 | 0 |
| C | 0 | 23 | 0 |
| D | 0 | 23 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6163 | 25 | 0.405647% |
| B | 6163 | 61 | 0.989778% |
| C | 6163 | 53 | 0.859971% |
| D | 6163 | 121 | 1.963330% |
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 | 7483 | 6164 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7483 | 6164 | 13 | 13 | 0.17% | 0.21% |  |
| C | 7483 | 6164 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7483 | 6164 | 70 | 70 | 0.94% | 1.14% |  |
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 | 11 | 47 | 7082 | 39.32 | 802 | 789 | 160.1 |
| A | 0 | 226 | 6917 | 38.29 | 802 | 789 | 160.1 |
| A | 13 | 254 | 6469 | 35.49 | 802 | 789 | 160.1 |
| B | 3 | 64 | 35000 | 225.66 | 802 | 785 | 151.6 |
| B | 7 | 220 | 33447 | 215.42 | 802 | 785 | 151.6 |
| B | 0 | 230 | 18940 | 119.74 | 802 | 785 | 151.6 |
| C | 14 | 238 | 121275 | 673.73 | 765 | 772 | 178.9 |
| C | 3 | 233 | 100477 | 557.45 | 765 | 772 | 178.9 |
| C | 8 | 208 | 8794 | 44.85 | 765 | 772 | 178.9 |
| D | 1 | 52 | 543224 | 2901.54 | 767 | 747 | 187.0 |
| D | 12 | 218 | 280333 | 1495.42 | 767 | 747 | 187.0 |
| D | 7 | 238 | 96497 | 512.14 | 767 | 747 | 187.0 |
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 |  |