Table 2
Parameter values (and associated formal regression error) of the guess PSF retrieved neglecting (K1) and accounting for the influence of the Venusian atmosphere (K2).
| PSF | Gaussian component | w i | σi [Arcsec] | A i | u i | vi [Radians] |
|
|
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| K 1 | i = 1 | 0.641 ± 0.002 | 0.470 ± 0.001 | 0.131 ± 0.002 | 1 | −1.85 ± 0.02 |
| i = 2 | 0.211 ± 0.002 | 1.155 ± 0.008 | 0.371 ± 0.006 | 1 | 2.62 ± 0.01 | |
| i = 3 | 0.066 ± 0.002 | 2.09 ± 0.02 | 0.54 ± 0.01 | 2 | −2.34 ± 0.01 | |
| i = 4 | 0.0467 ± 0.0005 | 4.42 ± 0.02 | 0.781 ± 0.006 | 1 | 1.255 ± 0.004 | |
| i = 5 | 0.035 ± 0.004 | 25.77 ± 0.04 | 0.115 ± 0.001 | 1 | 2.58 ± 0.01 | |
|
|
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| K 2 | i = 1 | 0.747 ± 0.001 | 0.417 | 0.164 ± 0.002 | 1 | −2.22 ± 0.01 |
| i = 2 | 0.126 ± 0.003 | 1.45 ± 0.01 | 0.48 ± 0.01 | 1 | 2.36 ± 0.01 | |
| i = 3 | 0.049 ± 0.003 | 2.10 ± 0.02 | 0.74 ± 0.04 | 2 | −2.36 ± 0.01 | |
| i = 4 | 0.0428 ± 0.0004 | 4.66 ± 0.02 | 0.776 ± 0.007 | 1 | 1.194 ± 0.006 | |
| i = 5 | 0.035 ± 0.004 | 26.16 ± 0.05 | 0.122 ± 0.002 | 1 | 2.63 ± 0.01 | |
Notes. The PSFs are given by the linear combination of five Gaussian functions (Eq. (1)), denoted by i, with weight wi and listed in ascending order by the standard deviation, σi. The amplitude of each Gaussian component modulates sinusoidally with azimuth, with amplitude Ai, period of 2πui radians (where ui ∈Z) and phase vi. There are no associated formal regression errors for ui, and in the case of K2, σi = 1 as the value of these parameters were fixed in the LMA optimization (see text).
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