Observation information
- date-obs: 2018-07-11
- time-obs: 03:31:32.270400000
- date-end: 2018-07-11
- time-end: 05:47:17.272400000
- obs_id: T02_060T01_9000002216
- exposure: 3145.27072898
- sourceid: Maxi J1820+070
- observer: aarthy
- ra_pnt: 275.091
- dec_pnt: 7.185631
Basic statistics of files
| Param |
Original file |
Final file |
| Filename | modeM0/AS1T02_060T01_9000002216_15054cztM0_level2.evt
| modeM0/AS1T02_060T01_9000002216_15054cztM0_level2_quad_clean.evt
|
| Size (bytes) | 506,998,080 | 76,691,520 |
| Size | 483.5 MB
| 73.1 MB
|
| Events in quadrant A | 3,351,018 | 482,981 |
| Events in quadrant B | 4,221,494 | 493,089 |
| Events in quadrant C | 3,596,029 | 472,201 |
| Events in quadrant D | 3,771,952 | 447,695 |
Level1 data integrity
| Mode M0 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 13642 | 4 |
| B | 0 | 16452 | 3 |
| C | 0 | 14652 | 3 |
| D | 0 | 15287 | 3 |
| Mode M9 |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 20 | 0 |
| B | 0 | 20 | 0 |
| C | 0 | 20 | 0 |
| D | 0 | 21 | 0 |
| Mode SS |
| Quadrant | BADHDUFLAG | Total packets | Discarded packets |
|---|
| A | 0 | 124 | 0 |
| B | 0 | 124 | 0 |
| C | 0 | 124 | 0 |
| D | 0 | 124 | 0 |
Data saturation
| Quadrant | Total seconds | Saturated seconds | Saturation percentage |
|---|
| A | 6106 | 34 | 0.556829% |
| B | 6106 | 270 | 4.421880% |
| C | 6106 | 21 | 0.343924% |
| D | 6106 | 135 | 2.210940% |
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 | 7437 | 6109 | 1 | 1 | 0.01% | 0.02% |  |
| B | 7437 | 6109 | 180 | 180 | 2.42% | 2.95% |  |
| C | 7437 | 6109 | 1 | 1 | 0.01% | 0.02% |  |
| D | 7437 | 6109 | 114 | 114 | 1.53% | 1.87% |  |
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 | 1 | 162 | 115442 | 717.09 | 790 | 775 | 159.9 |
| A | 1 | 178 | 50769 | 312.65 | 790 | 775 | 159.9 |
| A | 15 | 239 | 50106 | 308.5 | 790 | 775 | 159.9 |
| B | 10 | 16 | 1112200 | 7518.39 | 782 | 767 | 147.8 |
| B | 4 | 173 | 24643 | 161.51 | 782 | 767 | 147.8 |
| B | 12 | 111 | 17785 | 115.12 | 782 | 767 | 147.8 |
| C | 3 | 233 | 620347 | 3537.98 | 758 | 763 | 175.1 |
| C | 7 | 247 | 15982 | 86.9 | 758 | 763 | 175.1 |
| C | 13 | 61 | 5494 | 27.02 | 758 | 763 | 175.1 |
| D | 7 | 223 | 667872 | 3622.89 | 745 | 724 | 184.1 |
| D | 13 | 249 | 260564 | 1411.04 | 745 | 724 | 184.1 |
| D | 13 | 104 | 34207 | 181.82 | 745 | 724 | 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 |  |