Observation information
- date-obs: 2020-04-21
- time-obs: 06:21:10.250300000
- date-end: 2020-04-21
- time-end: 08:25:27.242600000
- obs_id: T03_191T01_9000003618
- exposure: 6205.35255744
- sourceid: LMC X-2
- observer: ramadevi
- ra_pnt: 80.11684
- dec_pnt: -71.96481
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T03_191T01_9000003618_24677cztM0_level2.evt
| modeM0/AS1T03_191T01_9000003618_24677cztM0_level2_quad_clean.evt
|
| Size (bytes) | 488,479,680 | 135,858,240 |
| Size | 465.9 MB
| 129.6 MB
|
| Events in quadrant A | 3,179,995 | 939,451 |
| Events in quadrant B | 3,237,666 | 949,887 |
| Events in quadrant C | 3,217,372 | 908,357 |
| Events in quadrant D | 4,733,836 | 880,323 |
Level1 data integrity
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 12 | 0 |
| B | 0 | 12 | 0 |
| C | 0 | 12 | 0 |
| D | 0 | 12 | 0 |
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13505 | 1 |
| B | 0 | 13636 | 1 |
| C | 0 | 13740 | 1 |
| D | 0 | 18457 | 1 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 128 | 0 |
| B | 0 | 128 | 0 |
| C | 0 | 128 | 0 |
| D | 0 | 128 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6257 | 41 | 0.655266% |
| B | 6258 | 58 | 0.926814% |
| C | 6258 | 82 | 1.310323% |
| D | 6258 | 223 | 3.563439% |
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 | 7457 | 6257 | 0 | 0 | 0.00% | 0.00% |  |
| B | 7458 | 6258 | 5 | 5 | 0.07% | 0.08% |  |
| C | 7458 | 6258 | 0 | 0 | 0.00% | 0.00% |  |
| D | 7458 | 6258 | 205 | 205 | 2.75% | 3.28% |  |
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 | 96 | 9819 | 55.79 | 822 | 807 | 161.5 |
| A | 13 | 254 | 9479 | 53.68 | 822 | 807 | 161.5 |
| A | 0 | 226 | 7007 | 38.38 | 822 | 807 | 161.5 |
| B | 0 | 189 | 54240 | 350.83 | 810 | 791 | 152.3 |
| B | 12 | 111 | 17458 | 109.4 | 810 | 791 | 152.3 |
| B | 11 | 111 | 16008 | 99.88 | 810 | 791 | 152.3 |
| C | 14 | 238 | 127113 | 700.49 | 789 | 796 | 180.3 |
| C | 13 | 61 | 5447 | 25.79 | 789 | 796 | 180.3 |
| C | 3 | 233 | 4952 | 23.05 | 789 | 796 | 180.3 |
| D | 1 | 52 | 1098090 | 5760.96 | 799 | 776 | 190.5 |
| D | 8 | 195 | 561930 | 2946.09 | 799 | 776 | 190.5 |
| D | 2 | 234 | 24803 | 126.14 | 799 | 776 | 190.5 |
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 |  |