Observation information
- date-obs: 2019-05-10
- time-obs: 17:29:50.318800000
- date-end: 2019-05-10
- time-end: 19:30:45.319300000
- obs_id: A05_142T01_9000002904
- exposure: 3839.67790699
- sourceid: MAXI J1820+070
- observer: JohnPaice
- ra_pnt: 275.0914
- dec_pnt: 7.1853
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1A05_142T01_9000002904_19549cztM0_level2.evt
| modeM0/AS1A05_142T01_9000002904_19549cztM0_level2_quad_clean.evt
|
| Size (bytes) | 434,306,880 | 76,556,160 |
| Size | 414.2 MB
| 73.0 MB
|
| Events in quadrant A | 2,999,105 | 473,600 |
| Events in quadrant B | 3,105,775 | 475,339 |
| Events in quadrant C | 3,176,960 | 462,668 |
| Events in quadrant D | 3,433,767 | 457,792 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 130 | 0 |
| B | 0 | 130 | 0 |
| C | 0 | 130 | 0 |
| D | 0 | 130 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13130 | 2 |
| B | 0 | 13351 | 2 |
| C | 0 | 13522 | 2 |
| D | 0 | 14594 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 8 | 0 |
| B | 0 | 9 | 0 |
| C | 0 | 9 | 0 |
| D | 0 | 9 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6434 | 26 | 0.404103% |
| B | 6434 | 43 | 0.668325% |
| C | 6434 | 86 | 1.336649% |
| D | 6434 | 81 | 1.258937% |
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 | 7019 | 6435 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7019 | 6435 | 5 | 5 | 0.07% | 0.08% |  |
| C | 7019 | 6435 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7019 | 6435 | 48 | 48 | 0.68% | 0.75% |  |
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 | 13 | 254 | 10134 | 58.86 | 777 | 759 | 159.3 |
| A | 0 | 226 | 6699 | 37.3 | 777 | 759 | 159.3 |
| A | 3 | 137 | 6517 | 36.15 | 777 | 759 | 159.3 |
| B | 3 | 64 | 34491 | 226.27 | 770 | 749 | 149.1 |
| B | 0 | 230 | 18627 | 119.89 | 770 | 749 | 149.1 |
| B | 12 | 111 | 18251 | 117.36 | 770 | 749 | 149.1 |
| C | 14 | 238 | 116070 | 656.59 | 742 | 745 | 175.6 |
| C | 3 | 233 | 81520 | 459.88 | 742 | 745 | 175.6 |
| C | 7 | 247 | 77322 | 435.98 | 742 | 745 | 175.6 |
| D | 2 | 16 | 239404 | 1292.88 | 754 | 731 | 184.6 |
| D | 10 | 230 | 186646 | 1007.09 | 754 | 731 | 184.6 |
| D | 12 | 233 | 80158 | 430.25 | 754 | 731 | 184.6 |
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 |  |