Observation information
- date-obs: 2018-08-20
- time-obs: 03:21:32.256700000
- date-end: 2018-08-20
- time-end: 05:33:14.021400000
- obs_id: T02_086T01_9000002316
- exposure: 3066.48887113
- 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_15646cztM0_level2.evt
| modeM0/AS1T02_086T01_9000002316_15646cztM0_level2_quad_clean.evt
|
| Size (bytes) | 483,773,760 | 72,907,200 |
| Size | 461.4 MB
| 69.5 MB
|
| Events in quadrant A | 3,794,080 | 440,729 |
| Events in quadrant B | 3,344,564 | 452,771 |
| Events in quadrant C | 3,462,979 | 447,098 |
| Events in quadrant D | 3,625,998 | 431,154 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 126 | 0 |
| B | 0 | 126 | 0 |
| C | 0 | 126 | 0 |
| D | 0 | 126 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 18 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15208 | 3 |
| B | 0 | 13554 | 2 |
| C | 0 | 14085 | 2 |
| D | 0 | 14573 | 2 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6245 | 104 | 1.665332% |
| B | 6245 | 102 | 1.633307% |
| C | 6245 | 151 | 2.417934% |
| D | 6245 | 178 | 2.850280% |
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 | 7576 | 6246 | 5 | 5 | 0.07% | 0.08% |  |
| B | 7576 | 6246 | 0 | 0 | 0.00% | 0.00% |  |
| C | 7576 | 6246 | 19 | 19 | 0.25% | 0.30% |  |
| D | 7576 | 6246 | 80 | 80 | 1.06% | 1.28% |  |
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 | 15 | 249 | 547774 | 3282.5 | 836 | 820 | 166.6 |
| A | 15 | 157 | 29183 | 170.22 | 836 | 820 | 166.6 |
| A | 0 | 226 | 7397 | 39.47 | 836 | 820 | 166.6 |
| B | 0 | 219 | 30920 | 192.8 | 841 | 823 | 156.1 |
| B | 12 | 111 | 17185 | 104.81 | 841 | 823 | 156.1 |
| B | 0 | 214 | 14678 | 88.75 | 841 | 823 | 156.1 |
| C | 14 | 238 | 129870 | 697.66 | 820 | 827 | 185.0 |
| C | 14 | 225 | 111221 | 596.83 | 820 | 827 | 185.0 |
| C | 3 | 233 | 20880 | 108.41 | 820 | 827 | 185.0 |
| D | 1 | 52 | 343289 | 1733.91 | 821 | 799 | 197.5 |
| D | 10 | 70 | 105540 | 530.27 | 821 | 799 | 197.5 |
| D | 2 | 120 | 51817 | 258.29 | 821 | 799 | 197.5 |
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 |  |