Observation information
- date-obs: 2019-03-15
- time-obs: 14:42:45.522700000
- date-end: 2019-03-16
- time-end: 03:30:05.551400000
- obs_id: T03_091T01_9000002798
- exposure: 21481.7242608
- sourceid: Vela X1
- observer: Kmukerjee
- ra_pnt: 135.5286
- dec_pnt: -40.55469
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T03_091T01_9000002798cztM0_level2.fits
| modeM0/AS1T03_091T01_9000002798cztM0_level2_quad_clean.evt
|
| Size (bytes) | 383,474,880 | 381,522,240 |
| Size | 365.7 MB
| 363.8 MB
|
| Events in quadrant A | 2,350,900 | 2,337,429 |
| Events in quadrant B | 2,209,716 | 2,222,865 |
| Events in quadrant C | 2,278,150 | 2,195,963 |
| Events in quadrant D | 2,007,164 | 2,030,861 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 83289 | 0 |
| B | 0 | 103837 | 0 |
| C | 0 | 87110 | 0 |
| D | 0 | 88099 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 57 | 0 |
| B | 0 | 57 | 0 |
| C | 0 | 57 | 0 |
| D | 0 | 57 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 824 | 0 |
| B | 0 | 824 | 0 |
| C | 0 | 824 | 0 |
| D | 0 | 824 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 40291 | 351 | 0.871162% |
| B | 40291 | 2425 | 6.018714% |
| C | 40291 | 596 | 1.479239% |
| D | 40291 | 424 | 1.052344% |
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 | 46041 | 40293 | 0 | 0 | 0.00% | 0.00% |  |
| B | 46041 | 40192 | 0 | 0 | 0.00% | 0.00% |  |
| C | 46041 | 40291 | 0 | 0 | 0.00% | 0.00% |  |
| D | 46041 | 40278 | 0 | 0 | 0.00% | 0.00% |  |
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 | 0 | 29 | 1999 | 9.29 | 613 | 575 | 153.3 |
| A | 7 | 110 | 1950 | 8.97 | 613 | 575 | 153.3 |
| A | 9 | 19 | 1782 | 7.87 | 613 | 575 | 153.3 |
| B | 2 | 9 | 1830 | 10.89 | 584 | 557 | 116.9 |
| B | 14 | 254 | 1524 | 8.27 | 584 | 557 | 116.9 |
| B | 2 | 8 | 1514 | 8.19 | 584 | 557 | 116.9 |
| C | 1 | 81 | 1694 | 7.38 | 600 | 561 | 153.4 |
| C | 1 | 80 | 1663 | 7.18 | 600 | 561 | 153.4 |
| C | 12 | 241 | 1594 | 6.73 | 600 | 561 | 153.4 |
| D | 3 | 14 | 1484 | 6.32 | 571 | 522 | 152.1 |
| D | 10 | 190 | 1462 | 6.18 | 571 | 522 | 152.1 |
| D | 7 | 3 | 1425 | 5.94 | 571 | 522 | 152.1 |
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 |  |