Observation information
- date-obs: 2021-07-15
- time-obs: 00:50:48.614000000
- date-end: 2021-07-15
- time-end: 03:01:17.611600000
- obs_id: T04_025T01_9000004538
- exposure: 6440.59715787
- 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_31334cztM0_level2.evt
| modeM0/AS1T04_025T01_9000004538_31334cztM0_level2_quad_clean.evt
|
| Size (bytes) | 552,104,640 | 131,981,760 |
| Size | 526.5 MB
| 125.9 MB
|
| Events in quadrant A | 3,150,523 | 911,367 |
| Events in quadrant B | 5,679,686 | 893,190 |
| Events in quadrant C | 3,644,706 | 872,242 |
| Events in quadrant D | 3,805,196 | 867,055 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 132 | 0 |
| B | 0 | 132 | 0 |
| C | 0 | 132 | 0 |
| D | 0 | 132 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13461 | 2 |
| B | 0 | 21512 | 2 |
| C | 0 | 14977 | 2 |
| D | 0 | 15394 | 2 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13 | 0 |
| B | 0 | 14 | 0 |
| C | 0 | 14 | 0 |
| D | 0 | 14 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6503 | 32 | 0.492081% |
| B | 6503 | 298 | 4.582500% |
| C | 6503 | 198 | 3.044749% |
| D | 6503 | 52 | 0.799631% |
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 | 7588 | 6504 | 6 | 6 | 0.08% | 0.09% |  |
| B | 7588 | 6504 | 82 | 82 | 1.08% | 1.26% |  |
| C | 7588 | 6504 | 14 | 14 | 0.18% | 0.22% |  |
| D | 7588 | 6504 | 21 | 21 | 0.28% | 0.32% |  |
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 | 8 | 192 | 17398 | 102.41 | 812 | 795 | 162.1 |
| A | 13 | 254 | 11498 | 66.02 | 812 | 795 | 162.1 |
| A | 3 | 137 | 7985 | 44.35 | 812 | 795 | 162.1 |
| B | 6 | 159 | 1782852 | 11905.04 | 795 | 776 | 149.7 |
| B | 4 | 80 | 615075 | 4103.78 | 795 | 776 | 149.7 |
| B | 15 | 33 | 77511 | 512.62 | 795 | 776 | 149.7 |
| C | 3 | 233 | 250481 | 1382.56 | 779 | 784 | 180.6 |
| C | 14 | 238 | 181369 | 999.89 | 779 | 784 | 180.6 |
| C | 0 | 10 | 79251 | 434.47 | 779 | 784 | 180.6 |
| D | 8 | 195 | 578137 | 3088.56 | 792 | 771 | 186.9 |
| D | 12 | 233 | 193239 | 1029.59 | 792 | 771 | 186.9 |
| D | 2 | 234 | 26473 | 137.49 | 792 | 771 | 186.9 |
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 |  |