Table 2
Main disk position angle (NE/SW), as measured with the various methods described in the text,for cADI, sADI, and rADI (based on averages of resp. 3, 3, and 1 reduced images).
| Spine, maximum (NE/SW) | Spine, weighted Lorentzian (NE/SW) | 2 component fit (NE/SW) | ||
|
|
||||
| cADI mean | ||||
| PA (Main) [°] | 29.33 /209.10  |
29.29 /209.35  |
29.07 /209.00 |
|
| warp incl. [°] | NA | NA | 3.9 / 3.9  |
|
|
|
||||
| cADI median | ||||
| PA (Main) [°] | 29.34 /209.11 |
29.28 /209.35 |
29.08 / 209.01 |
|
| warp incl. [°] | NA | NA | 4.1 /3.9 |
|
|
|
||||
| sADI mean | ||||
| PA (Main) [°] | 29.38  / 209.22 |
29.27 / 209.41 |
29.02 /209.03 |
|
| warp incl. [°] | NA | NA | 3.5 /3.95 |
|
|
|
||||
| sADI median | ||||
| PA (Main) [°] | 29.36  /209.20  |
29.23  /209.39  |
28.98 /209.02 |
|
| warp incl. [°] | NA | NA | 3.7/ 3.9 |
|
|
|
||||
| rADI mean | ||||
| PA (Main) [°] | 29.0 /209.01 |
29.0 /209.04 |
NA | |
| warp incl. [°] | NA | NA | NA | |
| rADI median | ||||
| PA (Main) [°] | 29.14 /209.04 |
29.26 /209.07 |
NA | |
| warp incl. [°] | NA | NA | NA | |
Notes. In each case, we give the measured values by various fitting methods, and uncertainties associated with these measurements (first line) values, with all biases and uncertainties included. Note that we have assumed here an uncertainty associated with the true north position of 0.07 deg.
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