Observation information
- date-obs: 2019-08-14
- time-obs: 21:31:00.884200000
- date-end: 2019-08-14
- time-end: 23:15:13.884200000
- obs_id: T03_131T01_9000003090
- exposure: 1684.68398428
- sourceid: SAX J1808-3658
- observer: an.sanna
- ra_pnt: 272.1147
- dec_pnt: -36.97897
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T03_131T01_9000003090_20971cztM0_level2.evt
| modeM0/AS1T03_131T01_9000003090_20971cztM0_level2_quad_clean.evt
|
| Size (bytes) | 208,736,640 | 37,512,000 |
| Size | 199.1 MB
| 35.8 MB
|
| Events in quadrant A | 1,366,006 | 237,908 |
| Events in quadrant B | 1,454,578 | 242,984 |
| Events in quadrant C | 1,409,984 | 231,578 |
| Events in quadrant D | 1,891,362 | 215,659 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 93 | 37 |
| B | 0 | 94 | 34 |
| C | 0 | 95 | 37 |
| D | 0 | 96 | 32 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 13 | 1 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 9288 | 3254 |
| B | 0 | 9542 | 3358 |
| C | 0 | 9345 | 3276 |
| D | 0 | 11671 | 4070 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 2915 | 21 | 0.720412% |
| B | 2916 | 32 | 1.097394% |
| C | 2917 | 37 | 1.268426% |
| D | 2870 | 97 | 3.379791% |
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 | 5691 | 3054 | 0 | 0 | 0.00% | 0.00% |  |
| B | 5680 | 3036 | 2 | 2 | 0.04% | 0.07% |  |
| C | 5648 | 3056 | 0 | 0 | 0.00% | 0.00% |  |
| D | 5638 | 2996 | 98 | 98 | 1.74% | 3.27% |  |
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 | 0 | 226 | 3052 | 37.27 | 355 | 348 | 72.5 |
| A | 3 | 137 | 2935 | 35.66 | 355 | 348 | 72.5 |
| A | 12 | 194 | 2556 | 30.44 | 355 | 348 | 72.5 |
| B | 0 | 189 | 29839 | 428.78 | 358 | 349 | 68.8 |
| B | 3 | 64 | 8512 | 118.69 | 358 | 349 | 68.8 |
| B | 0 | 230 | 8373 | 116.67 | 358 | 349 | 68.8 |
| C | 14 | 238 | 54517 | 656.9 | 344 | 346 | 82.5 |
| C | 7 | 247 | 11721 | 137.93 | 344 | 346 | 82.5 |
| C | 13 | 61 | 2295 | 23.63 | 344 | 346 | 82.5 |
| D | 1 | 52 | 603587 | 7250.61 | 337 | 326 | 83.2 |
| D | 2 | 234 | 10191 | 118.57 | 337 | 326 | 83.2 |
| D | 15 | 0 | 5272 | 59.45 | 337 | 326 | 83.2 |
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 |  |