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Comments: Imaged Saturn April 21st, have only 685nm IR data covering 50 minutes of Saturn rotation. The data was fair at best with the middle of the session, centered on 19:50 UTC the best of it. I note a feature within the NPR which very closely resembles the coupled anti cyclone / cyclone combination which I tracked during the 2020 apparition. I measure the dark spot to be at approx Lat+62.3 L3 74.7 with the bright spot at approx Lat+62.1 L3 87.4
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Observation 1 |
|
Feature(s) |
N/A |
Filter(s) |
ir |
Date |
2021-04-21 19:50:00 |
Julian day |
2459326.326388889 |
System I |
303.51987° |
System II |
N/A |
System III |
38.431072° |
Illumination |
99.8% |
Phase angle |
5.699999809265137° |
Solar longitude |
13.1° |
Eq. diameter |
16.35″ |
Derotation |
0.0 min |