Observation information
- date-obs: 2017-08-01
- time-obs: 19:11:42.869900000
- date-end: 2017-08-01
- time-end: 21:11:35.092000000
- obs_id: G07_047T01_9000001424
- exposure: 3589.74472059
- 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_09972cztM0_level2.evt
| modeM0/AS1G07_047T01_9000001424_09972cztM0_level2_quad_clean.evt
|
| Size (bytes) | 535,268,160 | 78,730,560 |
| Size | 510.5 MB
| 75.1 MB
|
| Events in quadrant A | 5,303,850 | 471,974 |
| Events in quadrant B | 3,113,132 | 522,055 |
| Events in quadrant C | 2,710,644 | 513,955 |
| Events in quadrant D | 4,687,287 | 467,576 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 19588 | 37 |
| B | 0 | 12997 | 12 |
| C | 0 | 12024 | 7 |
| D | 0 | 17888 | 28 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 118 | 0 |
| B | 0 | 118 | 0 |
| C | 0 | 118 | 0 |
| D | 0 | 118 | 0 |
| 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 | 5843 | 816 | 13.965429% |
| B | 5844 | 91 | 1.557153% |
| C | 5845 | 19 | 0.325064% |
| D | 5840 | 157 | 2.688356% |
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 | 7193 | 5845 | 709 | 709 | 9.86% | 12.13% |  |
| B | 7193 | 5848 | 24 | 24 | 0.33% | 0.41% |  |
| C | 7193 | 5849 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7193 | 5848 | 128 | 128 | 1.78% | 2.19% |  |
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 | 2580608 | 18510.56 | 685 | 672 | 139.4 |
| A | 15 | 174 | 49359 | 349.32 | 685 | 672 | 139.4 |
| A | 4 | 2 | 30615 | 214.84 | 685 | 672 | 139.4 |
| B | 4 | 81 | 96612 | 703.66 | 722 | 707 | 136.3 |
| B | 10 | 245 | 80783 | 587.52 | 722 | 707 | 136.3 |
| B | 4 | 239 | 55757 | 403.9 | 722 | 707 | 136.3 |
| C | 8 | 208 | 14237 | 84.81 | 689 | 693 | 159.7 |
| C | 13 | 61 | 5439 | 29.72 | 689 | 693 | 159.7 |
| C | 8 | 222 | 4784 | 25.62 | 689 | 693 | 159.7 |
| D | 2 | 16 | 808197 | 4525.7 | 672 | 655 | 178.4 |
| D | 1 | 52 | 753692 | 4220.23 | 672 | 655 | 178.4 |
| D | 2 | 152 | 155551 | 868.08 | 672 | 655 | 178.4 |
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 |  |