Observation information
- date-obs: 2018-05-15
- time-obs: 02:24:57.548900000
- date-end: 2018-05-15
- time-end: 04:48:23.536600000
- obs_id: G08_084T01_9000002100
- exposure: 5255.63253528
- sourceid: 4U 1626-67
- observer: Kmukerjee
- ra_pnt: 248.07
- dec_pnt: -67.46091
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G08_084T01_9000002100_14209cztM0_level2.evt
| modeM0/AS1G08_084T01_9000002100_14209cztM0_level2_quad_clean.evt
|
| Size (bytes) | 571,538,880 | 108,161,280 |
| Size | 545.1 MB
| 103.2 MB
|
| Events in quadrant A | 3,234,386 | 723,903 |
| Events in quadrant B | 3,388,963 | 733,051 |
| Events in quadrant C | 3,236,959 | 707,911 |
| Events in quadrant D | 6,996,608 | 645,625 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 136 | 0 |
| B | 0 | 136 | 0 |
| C | 0 | 136 | 0 |
| D | 0 | 136 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13786 | 3 |
| B | 0 | 14184 | 2 |
| C | 0 | 13721 | 2 |
| D | 0 | 25212 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6675 | 30 | 0.449438% |
| B | 6675 | 39 | 0.584270% |
| C | 6675 | 44 | 0.659176% |
| D | 6675 | 1131 | 16.943820% |
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 | 8607 | 6678 | 2 | 2 | 0.02% | 0.03% |  |
| B | 8607 | 6678 | 0 | 0 | 0.00% | 0.00% |  |
| C | 8607 | 6678 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8607 | 6677 | 1029 | 1029 | 11.96% | 15.41% |  |
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 | 8 | 15 | 47717 | 289.74 | 803 | 788 | 162.0 |
| A | 12 | 189 | 40107 | 242.76 | 803 | 788 | 162.0 |
| A | 12 | 96 | 18799 | 111.2 | 803 | 788 | 162.0 |
| B | 4 | 97 | 77460 | 504.93 | 808 | 788 | 151.8 |
| B | 0 | 219 | 59856 | 389.0 | 808 | 788 | 151.8 |
| B | 0 | 189 | 29412 | 188.5 | 808 | 788 | 151.8 |
| C | 3 | 233 | 153666 | 836.54 | 790 | 795 | 182.7 |
| C | 13 | 61 | 5573 | 26.15 | 790 | 795 | 182.7 |
| C | 14 | 234 | 2365 | 8.59 | 790 | 795 | 182.7 |
| D | 12 | 110 | 2750818 | 15629.42 | 742 | 725 | 176.0 |
| D | 13 | 122 | 746457 | 4238.17 | 742 | 725 | 176.0 |
| D | 8 | 195 | 211729 | 1199.18 | 742 | 725 | 176.0 |
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 |  |