Observation information
- date-obs: 2017-08-10
- time-obs: 15:37:55.248200000
- date-end: 2017-08-10
- time-end: 17:45:16.252100000
- obs_id: G07_072T01_9000001452
- exposure: 4848.17766967
- sourceid: 4U 1822-37
- observer: bpaul
- ra_pnt: 276.445
- dec_pnt: -37.10517
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1G07_072T01_9000001452_10103cztM0_level2.evt
| modeM0/AS1G07_072T01_9000001452_10103cztM0_level2_quad_clean.evt
|
| Size (bytes) | 449,501,760 | 103,083,840 |
| Size | 428.7 MB
| 98.3 MB
|
| Events in quadrant A | 3,070,863 | 683,055 |
| Events in quadrant B | 3,348,239 | 687,977 |
| Events in quadrant C | 2,952,647 | 669,920 |
| Events in quadrant D | 3,810,350 | 638,272 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13270 | 2 |
| B | 0 | 14101 | 1 |
| C | 0 | 13050 | 1 |
| D | 0 | 15443 | 1 |
| 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 | 6341 | 68 | 1.072386% |
| B | 6341 | 78 | 1.230090% |
| C | 6341 | 30 | 0.473111% |
| D | 6341 | 114 | 1.797824% |
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 | 7641 | 6341 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7641 | 6342 | 8 | 8 | 0.10% | 0.13% |  |
| C | 7641 | 6342 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7641 | 6342 | 87 | 87 | 1.14% | 1.37% |  |
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 | 226 | 7520 | 41.79 | 798 | 782 | 161.2 |
| A | 12 | 194 | 6837 | 37.56 | 798 | 782 | 161.2 |
| A | 3 | 137 | 3446 | 16.52 | 798 | 782 | 161.2 |
| B | 0 | 214 | 101433 | 668.15 | 794 | 777 | 150.6 |
| B | 0 | 219 | 46732 | 305.05 | 794 | 777 | 150.6 |
| B | 0 | 189 | 39651 | 258.05 | 794 | 777 | 150.6 |
| C | 13 | 61 | 5817 | 29.19 | 754 | 759 | 173.2 |
| C | 14 | 67 | 4320 | 20.55 | 754 | 759 | 173.2 |
| C | 4 | 175 | 3447 | 15.52 | 754 | 759 | 173.2 |
| D | 1 | 52 | 339385 | 1870.17 | 755 | 735 | 181.1 |
| D | 8 | 195 | 219800 | 1209.77 | 755 | 735 | 181.1 |
| D | 0 | 11 | 155464 | 854.48 | 755 | 735 | 181.1 |
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 |  |