Observation information
- date-obs: 2019-05-09
- time-obs: 13:25:24.324400000
- date-end: 2019-05-09
- time-end: 15:50:25.327300000
- obs_id: T03_108T01_9000002898
- exposure: 3837.31989458
- 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_19530cztM0_level2.evt
| modeM0/AS1T03_108T01_9000002898_19530cztM0_level2_quad_clean.evt
|
| Size (bytes) | 559,186,560 | 82,500,480 |
| Size | 533.3 MB
| 78.7 MB
|
| Events in quadrant A | 3,775,078 | 497,459 |
| Events in quadrant B | 3,919,845 | 502,970 |
| Events in quadrant C | 4,070,539 | 484,814 |
| Events in quadrant D | 4,650,048 | 480,232 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 16112 | 3 |
| B | 0 | 16459 | 2 |
| C | 0 | 16802 | 2 |
| D | 0 | 18947 | 2 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 156 | 0 |
| B | 0 | 156 | 0 |
| C | 0 | 156 | 0 |
| D | 0 | 156 | 0 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 11 | 0 |
| B | 0 | 11 | 0 |
| C | 0 | 11 | 0 |
| D | 0 | 11 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 7661 | 175 | 2.284297% |
| B | 7661 | 216 | 2.819475% |
| C | 7661 | 247 | 3.224122% |
| D | 7661 | 252 | 3.289388% |
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 | 8701 | 7663 | 0 | 0 | 0.00% | 0.00% |  |
| B | 8701 | 7664 | 4 | 4 | 0.05% | 0.05% |  |
| C | 8701 | 7662 | 0 | 0 | 0.00% | 0.00% |  |
| D | 8701 | 7664 | 136 | 136 | 1.56% | 1.77% |  |
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 | 16 | 13122 | 61.36 | 971 | 949 | 198.4 |
| A | 12 | 96 | 11887 | 55.13 | 971 | 949 | 198.4 |
| A | 13 | 254 | 10152 | 46.39 | 971 | 949 | 198.4 |
| B | 7 | 220 | 62337 | 329.5 | 964 | 939 | 186.3 |
| B | 0 | 244 | 36210 | 189.29 | 964 | 939 | 186.3 |
| B | 12 | 111 | 23278 | 119.89 | 964 | 939 | 186.3 |
| C | 3 | 233 | 303633 | 1374.1 | 926 | 933 | 220.3 |
| C | 14 | 238 | 142180 | 641.19 | 926 | 933 | 220.3 |
| C | 0 | 207 | 10157 | 41.87 | 926 | 933 | 220.3 |
| D | 1 | 52 | 436097 | 1872.26 | 945 | 918 | 232.4 |
| D | 12 | 233 | 263568 | 1129.99 | 945 | 918 | 232.4 |
| D | 12 | 218 | 248763 | 1066.3 | 945 | 918 | 232.4 |
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 |  |