Observation information
- date-obs: 2018-02-21
- time-obs: 04:00:04.732500000
- date-end: 2018-02-21
- time-end: 04:25:38.730900000
- obs_id: T02_004T01_9000001910
- exposure: 1524.5823135
- sourceid: Swift J1658.2-4242
- observer: aruberi
- ra_pnt: 254.5526
- dec_pnt: -42.69847
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_004T01_9000001910_12982cztM0_level2.evt
| modeM0/AS1T02_004T01_9000001910_12982cztM0_level2_quad_clean.evt
|
| Size (bytes) | 103,789,440 | 31,878,720 |
| Size | 99.0 MB
| 30.4 MB
|
| Events in quadrant A | 720,173 | 211,990 |
| Events in quadrant B | 840,196 | 217,881 |
| Events in quadrant C | 716,942 | 217,334 |
| Events in quadrant D | 758,875 | 204,318 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3107 | 0 |
| B | 0 | 3477 | 0 |
| C | 0 | 3092 | 0 |
| D | 0 | 3210 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 30 | 0 |
| B | 0 | 30 | 0 |
| C | 0 | 30 | 0 |
| D | 0 | 30 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 1534 | 0 | 0.000000% |
| B | 1534 | 12 | 0.782269% |
| C | 1534 | 2 | 0.130378% |
| D | 1534 | 0 | 0.000000% |
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 | 1536 | 1536 | 0 | 0 | 0.00% | 0.00% |  |
| B | 1536 | 1536 | 16 | 16 | 1.04% | 1.04% |  |
| C | 1536 | 1536 | 0 | 0 | 0.00% | 0.00% |  |
| D | 1536 | 1536 | 0 | 0 | 0.00% | 0.00% |  |
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 | 1 | 162 | 8056 | 211.71 | 178 | 175 | 37.2 |
| A | 12 | 189 | 7826 | 205.53 | 178 | 175 | 37.2 |
| A | 9 | 143 | 4783 | 123.79 | 178 | 175 | 37.2 |
| B | 0 | 85 | 117882 | 3331.3 | 180 | 176 | 35.3 |
| B | 0 | 219 | 15255 | 426.76 | 180 | 176 | 35.3 |
| B | 0 | 214 | 5111 | 139.67 | 180 | 176 | 35.3 |
| C | 0 | 207 | 3612 | 78.41 | 182 | 183 | 43.7 |
| C | 14 | 234 | 1689 | 34.44 | 182 | 183 | 43.7 |
| C | 5 | 96 | 1559 | 31.47 | 182 | 183 | 43.7 |
| D | 1 | 52 | 83045 | 1887.17 | 177 | 171 | 43.9 |
| D | 8 | 195 | 8426 | 187.98 | 177 | 171 | 43.9 |
| D | 2 | 234 | 5930 | 131.14 | 177 | 171 | 43.9 |
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 |  |