Observation information
- date-obs: 2018-02-20
- time-obs: 23:58:41.743200000
- date-end: 2018-02-21
- time-end: 02:25:35.736300000
- obs_id: T02_004T01_9000001910
- exposure: 4956.00737853
- 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_12980cztM0_level2.evt
| modeM0/AS1T02_004T01_9000001910_12980cztM0_level2_quad_clean.evt
|
| Size (bytes) | 545,146,560 | 102,528,000 |
| Size | 519.9 MB
| 97.8 MB
|
| Events in quadrant A | 3,805,757 | 662,768 |
| Events in quadrant B | 4,731,702 | 664,207 |
| Events in quadrant C | 3,239,447 | 676,458 |
| Events in quadrant D | 4,273,708 | 629,589 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 15750 | 3 |
| B | 0 | 18455 | 2 |
| C | 0 | 13997 | 2 |
| D | 0 | 17172 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 140 | 0 |
| B | 0 | 140 | 0 |
| C | 0 | 140 | 0 |
| D | 0 | 140 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 20 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6769 | 129 | 1.905747% |
| B | 6769 | 430 | 6.352489% |
| C | 6769 | 22 | 0.325011% |
| D | 6769 | 257 | 3.796720% |
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 | 8815 | 6773 | 53 | 53 | 0.60% | 0.78% |  |
| B | 8815 | 6773 | 241 | 241 | 2.73% | 3.56% |  |
| C | 8815 | 6773 | 1 | 1 | 0.01% | 0.01% |  |
| D | 8815 | 6773 | 173 | 173 | 1.96% | 2.55% |  |
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 | 178976 | 1069.76 | 822 | 806 | 166.6 |
| A | 9 | 143 | 134123 | 800.46 | 822 | 806 | 166.6 |
| A | 15 | 223 | 131495 | 784.68 | 822 | 806 | 166.6 |
| B | 4 | 239 | 582759 | 3771.48 | 815 | 797 | 154.3 |
| B | 0 | 85 | 525214 | 3398.55 | 815 | 797 | 154.3 |
| B | 3 | 64 | 338267 | 2187.02 | 815 | 797 | 154.3 |
| C | 14 | 234 | 18786 | 94.99 | 820 | 827 | 189.1 |
| C | 0 | 207 | 12541 | 61.96 | 820 | 827 | 189.1 |
| C | 8 | 128 | 6861 | 31.92 | 820 | 827 | 189.1 |
| D | 1 | 52 | 1053374 | 5486.96 | 793 | 770 | 191.8 |
| D | 8 | 195 | 186751 | 969.47 | 793 | 770 | 191.8 |
| D | 2 | 234 | 28893 | 146.6 | 793 | 770 | 191.8 |
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 |  |