Observation information
- date-obs: 2021-07-15
- time-obs: 02:43:58.612200000
- date-end: 2021-07-15
- time-end: 04:45:11.609600000
- obs_id: T04_025T01_9000004538
- exposure: 6010.59531015
- sourceid: MAXI J0911-655
- observer: dumbscholar
- ra_pnt: 138.0101
- dec_pnt: -64.86845
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T04_025T01_9000004538_31336cztM0_level2.evt
| modeM0/AS1T04_025T01_9000004538_31336cztM0_level2_quad_clean.evt
|
| Size (bytes) | 525,864,960 | 132,410,880 |
| Size | 501.5 MB
| 126.3 MB
|
| Events in quadrant A | 3,099,356 | 919,506 |
| Events in quadrant B | 5,189,858 | 902,902 |
| Events in quadrant C | 3,481,296 | 882,338 |
| Events in quadrant D | 3,743,161 | 880,866 |
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 | 12977 | 1 |
| B | 0 | 19759 | 1 |
| C | 0 | 14272 | 1 |
| D | 0 | 15108 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6083 | 33 | 0.542495% |
| B | 6083 | 274 | 4.504356% |
| C | 6083 | 245 | 4.027618% |
| D | 6084 | 49 | 0.805391% |
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 | 7273 | 6084 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7273 | 6084 | 138 | 138 | 1.90% | 2.27% |  |
| C | 7273 | 6084 | 25 | 25 | 0.34% | 0.41% |  |
| D | 7274 | 6085 | 13 | 13 | 0.18% | 0.21% |  |
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 | 11 | 47 | 14721 | 88.82 | 798 | 786 | 156.9 |
| A | 13 | 254 | 11694 | 69.53 | 798 | 786 | 156.9 |
| A | 3 | 137 | 7186 | 40.79 | 798 | 786 | 156.9 |
| B | 6 | 159 | 1618935 | 11249.62 | 775 | 757 | 143.8 |
| B | 4 | 80 | 467661 | 3245.93 | 775 | 757 | 143.8 |
| B | 0 | 230 | 46154 | 315.6 | 775 | 757 | 143.8 |
| C | 14 | 238 | 169556 | 957.44 | 766 | 773 | 176.3 |
| C | 3 | 233 | 150080 | 846.96 | 766 | 773 | 176.3 |
| C | 0 | 10 | 102259 | 575.69 | 766 | 773 | 176.3 |
| D | 8 | 195 | 687990 | 3781.85 | 781 | 762 | 181.7 |
| D | 12 | 233 | 95679 | 522.33 | 781 | 762 | 181.7 |
| D | 2 | 234 | 24283 | 129.44 | 781 | 762 | 181.7 |
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 |  |