Observation information
- date-obs: 2019-05-09
- time-obs: 05:30:02.314900000
- date-end: 2019-05-09
- time-end: 07:10:20.317600000
- obs_id: T03_108T01_9000002898
- exposure: 2280.97761486
- sourceid: MAXI J1820+070
- observer: JohnPaice
- ra_pnt: 275.0912
- dec_pnt: 7.185639
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T03_108T01_9000002898_19525cztM0_level2.evt
| modeM0/AS1T03_108T01_9000002898_19525cztM0_level2_quad_clean.evt
|
| Size (bytes) | 349,225,920 | 59,800,320 |
| Size | 333.0 MB
| 57.0 MB
|
| Events in quadrant A | 2,522,252 | 375,473 |
| Events in quadrant B | 2,612,344 | 379,084 |
| Events in quadrant C | 2,593,266 | 362,378 |
| Events in quadrant D | 2,525,725 | 360,756 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 10107 | 1 |
| B | 0 | 10430 | 1 |
| C | 0 | 10326 | 1 |
| D | 0 | 10283 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 96 | 0 |
| B | 0 | 96 | 0 |
| C | 0 | 96 | 0 |
| D | 0 | 96 | 0 |
| 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 | 4744 | 53 | 1.117201% |
| B | 4743 | 73 | 1.539110% |
| C | 4743 | 63 | 1.328273% |
| D | 4743 | 34 | 0.716846% |
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 | 6019 | 4744 | 0 | 0 | 0.00% | 0.00% |  |
| B | 6018 | 4744 | 6 | 6 | 0.10% | 0.13% |  |
| C | 6018 | 4744 | 0 | 0 | 0.00% | 0.00% |  |
| D | 6018 | 4744 | 3 | 3 | 0.05% | 0.06% |  |
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 | 7069 | 48.77 | 652 | 639 | 131.8 |
| A | 0 | 226 | 5706 | 38.43 | 652 | 639 | 131.8 |
| A | 12 | 194 | 4803 | 31.58 | 652 | 639 | 131.8 |
| B | 7 | 220 | 43687 | 352.94 | 644 | 630 | 122.0 |
| B | 0 | 230 | 29633 | 237.74 | 644 | 630 | 122.0 |
| B | 12 | 111 | 14143 | 110.77 | 644 | 630 | 122.0 |
| C | 14 | 238 | 97934 | 678.94 | 619 | 626 | 143.3 |
| C | 3 | 233 | 51042 | 351.76 | 619 | 626 | 143.3 |
| C | 9 | 221 | 22076 | 149.66 | 619 | 626 | 143.3 |
| D | 13 | 104 | 42297 | 265.39 | 637 | 619 | 157.0 |
| D | 2 | 16 | 28083 | 174.88 | 637 | 619 | 157.0 |
| D | 2 | 234 | 17955 | 110.39 | 637 | 619 | 157.0 |
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 |  |