Observation information
- date-obs: 2017-06-27
- time-obs: 12:39:03.683000000
- date-end: 2017-06-27
- time-end: 14:41:06.679800000
- obs_id: T01_177T01_9000001344
- exposure: 4757.14461582
- sourceid: Swift J1357.2-0933
- observer: adegoke
- ra_pnt: 209.3201
- dec_pnt: -9.544042
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T01_177T01_9000001344_09450cztM0_level2.evt
| modeM0/AS1T01_177T01_9000001344_09450cztM0_level2_quad_clean.evt
|
| Size (bytes) | 435,879,360 | 103,924,800 |
| Size | 415.7 MB
| 99.1 MB
|
| Events in quadrant A | 3,390,680 | 701,157 |
| Events in quadrant B | 3,355,349 | 689,839 |
| Events in quadrant C | 2,916,354 | 669,410 |
| Events in quadrant D | 3,128,620 | 665,868 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13962 | 2 |
| B | 0 | 13830 | 1 |
| C | 0 | 12587 | 1 |
| D | 0 | 13215 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 122 | 0 |
| B | 0 | 122 | 0 |
| C | 0 | 122 | 0 |
| D | 0 | 122 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6033 | 68 | 1.127134% |
| B | 6033 | 48 | 0.795624% |
| C | 6033 | 32 | 0.530416% |
| D | 6033 | 53 | 0.878502% |
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 | 7323 | 6034 | 4 | 4 | 0.05% | 0.07% |  |
| B | 7323 | 6034 | 5 | 5 | 0.07% | 0.08% |  |
| C | 7323 | 6034 | 4 | 4 | 0.05% | 0.07% |  |
| D | 7323 | 6034 | 11 | 11 | 0.15% | 0.18% |  |
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 | 5 | 210791 | 1323.01 | 781 | 766 | 158.7 |
| A | 1 | 162 | 81523 | 508.71 | 781 | 766 | 158.7 |
| A | 1 | 178 | 29819 | 183.01 | 781 | 766 | 158.7 |
| B | 4 | 173 | 235444 | 1633.55 | 765 | 750 | 143.7 |
| B | 0 | 214 | 96819 | 668.67 | 765 | 750 | 143.7 |
| B | 0 | 187 | 17911 | 119.45 | 765 | 750 | 143.7 |
| C | 4 | 254 | 18350 | 104.57 | 737 | 744 | 168.4 |
| C | 14 | 234 | 12651 | 70.72 | 737 | 744 | 168.4 |
| C | 9 | 68 | 5909 | 30.68 | 737 | 744 | 168.4 |
| D | 12 | 227 | 111506 | 582.64 | 751 | 732 | 190.1 |
| D | 7 | 71 | 47881 | 247.99 | 751 | 732 | 190.1 |
| D | 8 | 195 | 36884 | 190.15 | 751 | 732 | 190.1 |
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 |  |