Observation information
- date-obs: 2019-05-10
- time-obs: 07:14:45.319300000
- date-end: 2019-05-10
- time-end: 09:17:53.318100000
- obs_id: A05_142T01_9000002904
- exposure: 2973.70413247
- 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_19541cztM0_level2.evt
| modeM0/AS1A05_142T01_9000002904_19541cztM0_level2_quad_clean.evt
|
| Size (bytes) | 472,389,120 | 74,390,400 |
| Size | 450.5 MB
| 70.9 MB
|
| Events in quadrant A | 3,219,265 | 465,367 |
| Events in quadrant B | 3,408,331 | 470,794 |
| Events in quadrant C | 3,275,792 | 445,867 |
| Events in quadrant D | 3,986,685 | 442,424 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12901 | 1 |
| B | 0 | 13511 | 1 |
| C | 0 | 13134 | 1 |
| D | 0 | 15544 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 13 | 0 |
| C | 0 | 13 | 0 |
| D | 0 | 13 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6133 | 92 | 1.500082% |
| B | 6134 | 165 | 2.689925% |
| C | 6134 | 98 | 1.597652% |
| D | 6134 | 188 | 3.064884% |
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 | 7388 | 6133 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7389 | 6134 | 36 | 36 | 0.49% | 0.59% |  |
| C | 7389 | 6135 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7389 | 6134 | 115 | 115 | 1.56% | 1.87% |  |
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 | 5 | 16 | 15225 | 87.41 | 832 | 818 | 164.8 |
| A | 13 | 254 | 9815 | 54.59 | 832 | 818 | 164.8 |
| A | 0 | 226 | 7448 | 40.23 | 832 | 818 | 164.8 |
| B | 7 | 220 | 118228 | 762.52 | 811 | 792 | 154.0 |
| B | 3 | 64 | 36239 | 230.16 | 811 | 792 | 154.0 |
| B | 0 | 244 | 34376 | 218.06 | 811 | 792 | 154.0 |
| C | 14 | 238 | 125910 | 699.29 | 774 | 781 | 178.9 |
| C | 3 | 233 | 118893 | 660.07 | 774 | 781 | 178.9 |
| C | 7 | 247 | 9947 | 51.22 | 774 | 781 | 178.9 |
| D | 1 | 52 | 736007 | 3810.6 | 797 | 775 | 192.9 |
| D | 12 | 218 | 126174 | 649.93 | 797 | 775 | 192.9 |
| D | 12 | 225 | 82765 | 424.94 | 797 | 775 | 192.9 |
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 |  |