Observation information
- date-obs: 2021-07-15
- time-obs: 04:31:22.609200000
- date-end: 2021-07-15
- time-end: 06:30:16.606600000
- obs_id: T04_025T01_9000004538
- exposure: 5786.91769776
- 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_31337cztM0_level2.evt
| modeM0/AS1T04_025T01_9000004538_31337cztM0_level2_quad_clean.evt
|
| Size (bytes) | 504,146,880 | 134,714,880 |
| Size | 480.8 MB
| 128.5 MB
|
| Events in quadrant A | 3,084,913 | 938,989 |
| Events in quadrant B | 4,753,544 | 933,242 |
| Events in quadrant C | 3,518,375 | 899,637 |
| Events in quadrant D | 3,515,525 | 900,303 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 118 | 0 |
| B | 0 | 118 | 0 |
| C | 0 | 118 | 0 |
| D | 0 | 118 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12732 | 1 |
| B | 0 | 18068 | 1 |
| C | 0 | 14235 | 1 |
| D | 0 | 14228 | 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 | 5844 | 28 | 0.479124% |
| B | 5845 | 103 | 1.762190% |
| C | 5845 | 289 | 4.944397% |
| D | 5845 | 29 | 0.496151% |
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 | 7134 | 5845 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7135 | 5846 | 13 | 13 | 0.18% | 0.22% |  |
| C | 7135 | 5846 | 22 | 22 | 0.31% | 0.38% |  |
| D | 7135 | 5846 | 7 | 7 | 0.10% | 0.12% |  |
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 | 11734 | 69.86 | 799 | 785 | 156.7 |
| A | 3 | 137 | 7032 | 39.86 | 799 | 785 | 156.7 |
| A | 0 | 226 | 6828 | 38.56 | 799 | 785 | 156.7 |
| B | 6 | 159 | 1546096 | 10763.19 | 779 | 762 | 143.6 |
| B | 4 | 80 | 61348 | 421.98 | 779 | 762 | 143.6 |
| B | 0 | 230 | 49625 | 340.33 | 779 | 762 | 143.6 |
| C | 14 | 238 | 169674 | 977.02 | 759 | 767 | 172.9 |
| C | 0 | 10 | 151180 | 870.04 | 759 | 767 | 172.9 |
| C | 3 | 233 | 93009 | 533.56 | 759 | 767 | 172.9 |
| D | 8 | 195 | 528191 | 2884.86 | 783 | 764 | 182.8 |
| D | 2 | 234 | 22725 | 120.12 | 783 | 764 | 182.8 |
| D | 2 | 153 | 19484 | 102.39 | 783 | 764 | 182.8 |
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 |  |