Observation information
- date-obs: 2018-08-20
- time-obs: 08:31:32.165000000
- date-end: 2018-08-20
- time-end: 10:46:14.013200000
- obs_id: T02_086T01_9000002316
- exposure: 4808.11494218
- sourceid: 4U 1636-536
- observer: sudip
- ra_pnt: 250.2312
- dec_pnt: -53.75139
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_086T01_9000002316_15649cztM0_level2.evt
| modeM0/AS1T02_086T01_9000002316_15649cztM0_level2_quad_clean.evt
|
| Size (bytes) | 483,575,040 | 99,002,880 |
| Size | 461.2 MB
| 94.4 MB
|
| Events in quadrant A | 3,232,781 | 640,799 |
| Events in quadrant B | 3,309,118 | 648,447 |
| Events in quadrant C | 3,325,341 | 635,989 |
| Events in quadrant D | 4,324,988 | 608,286 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 14 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 15 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13738 | 3 |
| B | 0 | 13851 | 2 |
| C | 0 | 13881 | 2 |
| D | 0 | 17079 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6670 | 94 | 1.409295% |
| B | 6670 | 121 | 1.814093% |
| C | 6670 | 147 | 2.203898% |
| D | 6670 | 301 | 4.512744% |
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 | 7591 | 6671 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7591 | 6671 | 2 | 2 | 0.03% | 0.03% |  |
| C | 7591 | 6671 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7590 | 6670 | 188 | 188 | 2.48% | 2.82% |  |
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 | 3 | 80 | 13141 | 74.0 | 831 | 816 | 166.6 |
| A | 13 | 248 | 8732 | 47.53 | 831 | 816 | 166.6 |
| A | 9 | 143 | 7747 | 41.61 | 831 | 816 | 166.6 |
| B | 0 | 189 | 21284 | 129.85 | 826 | 804 | 157.7 |
| B | 12 | 111 | 17858 | 108.12 | 826 | 804 | 157.7 |
| B | 11 | 111 | 15388 | 92.46 | 826 | 804 | 157.7 |
| C | 14 | 238 | 125820 | 680.17 | 799 | 804 | 183.8 |
| C | 3 | 233 | 80526 | 433.74 | 799 | 804 | 183.8 |
| C | 13 | 61 | 5592 | 26.05 | 799 | 804 | 183.8 |
| D | 1 | 52 | 872510 | 4457.68 | 803 | 777 | 195.6 |
| D | 4 | 95 | 236589 | 1205.84 | 803 | 777 | 195.6 |
| D | 15 | 145 | 41477 | 208.12 | 803 | 777 | 195.6 |
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 |  |