2023-04-10, 05:26 PM
That sounds like quite a powerful storm! Glad you're safe.
Can you use autoguiding anyway? Does it really matter for astrometry of minor planets? The tracking is really excellent.
There are some more large NEOs coming. I missed (4486) Mithra that's currently 16.1 magnitude in Perseus 0.2 AU distant. It was brighter several weeks ago. The estimated size is 1-4 km.
According to CNEOS (4486) Mithra's close approach occurs 2023-Apr-11 16:49±< 00:01 UT at a distance of 0.16267 AU at V Relative=13.45 km/sec, H=15.6 magnitude, diameter 1.849±0.022 km, 'Rarity'=2, Condition Code=0, Earth MOID=0.0462852 AU.
Phil S.
Can you use autoguiding anyway? Does it really matter for astrometry of minor planets? The tracking is really excellent.
There are some more large NEOs coming. I missed (4486) Mithra that's currently 16.1 magnitude in Perseus 0.2 AU distant. It was brighter several weeks ago. The estimated size is 1-4 km.
According to CNEOS (4486) Mithra's close approach occurs 2023-Apr-11 16:49±< 00:01 UT at a distance of 0.16267 AU at V Relative=13.45 km/sec, H=15.6 magnitude, diameter 1.849±0.022 km, 'Rarity'=2, Condition Code=0, Earth MOID=0.0462852 AU.
Phil S.