Observation information
- date-obs: 2018-02-20
- time-obs: 18:21:45.756700000
- date-end: 2018-02-20
- time-end: 22:55:28.746400000
- obs_id: T02_004T01_9000001910
- exposure: 10136.5872328
- 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_12977cztM0_level2.evt
| modeM0/AS1T02_004T01_9000001910_12977cztM0_level2_quad_clean.evt
|
| Size (bytes) | 1,149,301,440 | 198,570,240 |
| Size | 1.1 GB
| 189.4 MB
|
| Events in quadrant A | 7,962,579 | 1,276,678 |
| Events in quadrant B | 10,046,173 | 1,258,204 |
| Events in quadrant C | 6,789,252 | 1,271,633 |
| Events in quadrant D | 9,022,877 | 1,200,816 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 33109 | 4 |
| B | 0 | 39197 | 3 |
| C | 0 | 29964 | 3 |
| D | 0 | 36452 | 3 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 300 | 0 |
| B | 0 | 300 | 0 |
| C | 0 | 300 | 0 |
| D | 0 | 300 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 17 | 0 |
| B | 0 | 17 | 0 |
| C | 0 | 17 | 0 |
| D | 0 | 17 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 14578 | 229 | 1.570860% |
| B | 14578 | 1307 | 8.965565% |
| C | 14578 | 116 | 0.795720% |
| D | 14578 | 520 | 3.567019% |
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 | 16424 | 14582 | 33 | 33 | 0.20% | 0.23% |  |
| B | 16424 | 14582 | 654 | 654 | 3.98% | 4.48% |  |
| C | 16424 | 14582 | 19 | 19 | 0.12% | 0.13% |  |
| D | 16424 | 14582 | 387 | 387 | 2.36% | 2.65% |  |
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 | 12 | 189 | 487254 | 1374.19 | 1745 | 1707 | 353.3 |
| A | 1 | 162 | 199637 | 560.18 | 1745 | 1707 | 353.3 |
| A | 15 | 223 | 163663 | 458.36 | 1745 | 1707 | 353.3 |
| B | 4 | 239 | 1849813 | 5784.74 | 1691 | 1648 | 319.5 |
| B | 0 | 85 | 993181 | 3103.49 | 1691 | 1648 | 319.5 |
| B | 3 | 64 | 382507 | 1192.09 | 1691 | 1648 | 319.5 |
| C | 14 | 234 | 101436 | 252.6 | 1708 | 1718 | 394.8 |
| C | 0 | 207 | 31485 | 75.4 | 1708 | 1718 | 394.8 |
| C | 13 | 61 | 12400 | 27.06 | 1708 | 1718 | 394.8 |
| D | 1 | 52 | 2036759 | 5036.72 | 1680 | 1635 | 404.1 |
| D | 8 | 195 | 299777 | 737.87 | 1680 | 1635 | 404.1 |
| D | 2 | 14 | 231747 | 569.5 | 1680 | 1635 | 404.1 |
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 |  |