Observation information
- date-obs: 2021-07-14
- time-obs: 14:39:30.618400000
- date-end: 2021-07-14
- time-end: 16:33:47.617400000
- obs_id: T04_025T01_9000004538
- exposure: 6558.75429897
- 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_31328cztM0_level2.evt
| modeM0/AS1T04_025T01_9000004538_31328cztM0_level2_quad_clean.evt
|
| Size (bytes) | 525,625,920 | 126,829,440 |
| Size | 501.3 MB
| 121.0 MB
|
| Events in quadrant A | 3,071,509 | 873,289 |
| Events in quadrant B | 5,298,809 | 848,956 |
| Events in quadrant C | 3,268,104 | 830,801 |
| Events in quadrant D | 3,832,354 | 827,801 |
Level1 data integrity
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 134 | 0 |
| B | 0 | 134 | 0 |
| C | 0 | 134 | 0 |
| D | 0 | 134 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13548 | 1 |
| B | 0 | 20525 | 1 |
| C | 0 | 13938 | 1 |
| D | 0 | 15814 | 1 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 3 | 0 |
| B | 0 | 3 | 0 |
| C | 0 | 3 | 0 |
| D | 0 | 3 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6612 | 77 | 1.164549% |
| B | 6611 | 218 | 3.297534% |
| C | 6611 | 128 | 1.936167% |
| D | 6612 | 84 | 1.270417% |
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 | 6857 | 6614 | 0 | 0 | 0.00% | 0.00% |  |
| B | 6856 | 6613 | 43 | 43 | 0.63% | 0.65% |  |
| C | 6856 | 6613 | 1 | 1 | 0.01% | 0.02% |  |
| D | 6857 | 6614 | 48 | 48 | 0.70% | 0.73% |  |
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 | 12044 | 70.69 | 796 | 778 | 159.4 |
| A | 3 | 137 | 7922 | 44.83 | 796 | 778 | 159.4 |
| A | 0 | 226 | 6759 | 37.53 | 796 | 778 | 159.4 |
| B | 6 | 159 | 1899680 | 12874.54 | 775 | 755 | 147.5 |
| B | 5 | 172 | 176554 | 1191.9 | 775 | 755 | 147.5 |
| B | 4 | 80 | 60088 | 402.27 | 775 | 755 | 147.5 |
| C | 3 | 233 | 141355 | 796.74 | 752 | 755 | 176.5 |
| C | 14 | 238 | 125264 | 705.56 | 752 | 755 | 176.5 |
| C | 0 | 10 | 34618 | 191.89 | 752 | 755 | 176.5 |
| D | 8 | 195 | 724115 | 3929.34 | 769 | 748 | 184.1 |
| D | 12 | 233 | 87362 | 470.49 | 769 | 748 | 184.1 |
| D | 13 | 249 | 50344 | 269.41 | 769 | 748 | 184.1 |
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 |  |