Observation information
- date-obs: 2017-08-01
- time-obs: 14:00:42.758000000
- date-end: 2017-08-01
- time-end: 15:57:32.078900000
- obs_id: G07_047T01_9000001424
- exposure: 4379.80929112
- sourceid: 4U 1820-30
- observer: jsyadav
- ra_pnt: 275.919
- dec_pnt: -30.36128
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G07_047T01_9000001424_09968cztM0_level2.evt
| modeM0/AS1G07_047T01_9000001424_09968cztM0_level2_quad_clean.evt
|
| Size (bytes) | 406,667,520 | 85,432,320 |
| Size | 387.8 MB
| 81.5 MB
|
| Events in quadrant A | 2,643,147 | 553,960 |
| Events in quadrant B | 2,961,669 | 558,683 |
| Events in quadrant C | 2,528,908 | 557,485 |
| Events in quadrant D | 3,795,744 | 519,894 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12388 | 612 |
| B | 0 | 13335 | 681 |
| C | 0 | 12105 | 529 |
| D | 0 | 15931 | 895 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 120 | 6 |
| B | 0 | 120 | 2 |
| C | 0 | 120 | 2 |
| D | 0 | 120 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 2 |
| B | 0 | 11 | 1 |
| C | 0 | 11 | 1 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 5662 | 51 | 0.900742% |
| B | 5662 | 67 | 1.183327% |
| C | 5693 | 32 | 0.562094% |
| D | 5653 | 199 | 3.520255% |
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 | 7010 | 5853 | 7 | 7 | 0.10% | 0.12% |  |
| B | 7009 | 5863 | 22 | 22 | 0.31% | 0.38% |  |
| C | 7010 | 5873 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7010 | 5852 | 130 | 130 | 1.85% | 2.22% |  |
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 | 174 | 54398 | 391.63 | 671 | 657 | 137.2 |
| A | 0 | 226 | 6234 | 40.64 | 671 | 657 | 137.2 |
| A | 12 | 194 | 5622 | 36.18 | 671 | 657 | 137.2 |
| B | 0 | 214 | 65208 | 496.94 | 671 | 656 | 129.9 |
| B | 10 | 245 | 56646 | 431.03 | 671 | 656 | 129.9 |
| B | 4 | 81 | 54392 | 413.67 | 671 | 656 | 129.9 |
| C | 13 | 61 | 4742 | 27.21 | 647 | 649 | 150.4 |
| C | 8 | 222 | 3078 | 16.15 | 647 | 649 | 150.4 |
| C | 14 | 67 | 1985 | 8.88 | 647 | 649 | 150.4 |
| D | 1 | 52 | 513173 | 3067.53 | 636 | 616 | 167.1 |
| D | 2 | 152 | 149109 | 888.69 | 636 | 616 | 167.1 |
| D | 2 | 16 | 142865 | 851.32 | 636 | 616 | 167.1 |
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 |  |