2023-05-30, 09:11 PM
CNEOS predicts that the NEO 2020 DB5 will make a close approach on 2023-Jun-15 02:04±<00:01 UT at a distance of 0.02880 AU with V Relative=9.52 km/sec, H=19.2 magnitude, diameter 380 m - 850 m, 'Rarity'=2. The Condition Code=0 and the Earth MOID=0.0164621 AU. This is a medium sized object with a well defined orbit. The parameters listed by CNEOS haven't changed since Apr 22 so I don't anticipate any further changes to this information before the close approach.
Using MPC's elements for 2023 May 30, ST4v predicts that 2020 DB5 will reach peak brightness of 13.8 magnitude on 2023 Jun 13 2300 EDT at a distance of 0.03 AU when the object will be moving through Centaurus at 26"/min. Close approach (to the nearest hour) will occur on 2023 Jun 14 2200 EDT when this NEO will be 13.8 magnitude still moving through Centaurus at 27.3"/min, too close to the horizon to be visible from Columbus, Ohio. The close approach will be best from the southern hemisphere.
On the evening of 2023 Jun 11, both 2020 DB5 and (488453) 1994 XD will be brighter than 15 magnitude in Virgo and Cepheus, respectively, well placed for northern hemisphere observers. These are both 'Rarity'=2 close approaches, so seeing 2 of these NEOs on the same night, even if not at their maximum brightness, is still very rare.
Here's the Object Info dialog for this NEO:
Good hunting,
Phil S.
Using MPC's elements for 2023 May 30, ST4v predicts that 2020 DB5 will reach peak brightness of 13.8 magnitude on 2023 Jun 13 2300 EDT at a distance of 0.03 AU when the object will be moving through Centaurus at 26"/min. Close approach (to the nearest hour) will occur on 2023 Jun 14 2200 EDT when this NEO will be 13.8 magnitude still moving through Centaurus at 27.3"/min, too close to the horizon to be visible from Columbus, Ohio. The close approach will be best from the southern hemisphere.
On the evening of 2023 Jun 11, both 2020 DB5 and (488453) 1994 XD will be brighter than 15 magnitude in Virgo and Cepheus, respectively, well placed for northern hemisphere observers. These are both 'Rarity'=2 close approaches, so seeing 2 of these NEOs on the same night, even if not at their maximum brightness, is still very rare.
Here's the Object Info dialog for this NEO:
Good hunting,
Phil S.