2025-04-02, 06:30 PM
CNEOS predicts that the newly discovered NEO, 2025 GB, will make a close approach on 2025-Apr-03 01:25±<00:01 UT at a distance of 0.00484 AU moving with V Relative=8.42 km/sec, H=24.5 magnitude, diameter 33 m - 74 m and 'Rarity'=1. There is currently a 1 day observation arc, the Condition Code=7 and the Earth MOID=0.00471493 AU. The solution date was 2025-Apr-02 06:19:22 PDT. The initial reported observation was by ATLAS-HKO, Haleakala on 2025-04-01.
Using MPC's elements for 2025 Apr 2 0000 UT, ST4.1.11.14 Visual Pro predicts that 2025 GB will reach a peak brightness of 14.0 magnitude on 2025 Apr 3 ~0200 EDT at a distance of 739k km traveling through Bootes at ~136"/minute. Close approach (to the nearest hour) is predicted on 2025 Apr 2 2100 EDT (Apr 3 0100 UT) with the NEO traveling through Coma Berenices at 14.2 magnitude and ~140"/minute. ST4 predicts that this object will be brighter than 16 magnitude from Apr 1 at 2100 EDT in Ursa Major to Apr 4 at 0500 EDT in Hydra.
Here's the Object Info dialog for 2025 GB:
Since this NEO will pass very close to earth, observers should obtain their orbital elements for an epoch of osculation close to the time of close approach. See the pinned post at the top of this section of the forum for instructions on obtaining orbital elements for these events and adding them to your Minor Planet database.
Good hunting,
Phil S.
Using MPC's elements for 2025 Apr 2 0000 UT, ST4.1.11.14 Visual Pro predicts that 2025 GB will reach a peak brightness of 14.0 magnitude on 2025 Apr 3 ~0200 EDT at a distance of 739k km traveling through Bootes at ~136"/minute. Close approach (to the nearest hour) is predicted on 2025 Apr 2 2100 EDT (Apr 3 0100 UT) with the NEO traveling through Coma Berenices at 14.2 magnitude and ~140"/minute. ST4 predicts that this object will be brighter than 16 magnitude from Apr 1 at 2100 EDT in Ursa Major to Apr 4 at 0500 EDT in Hydra.
Here's the Object Info dialog for 2025 GB:
Since this NEO will pass very close to earth, observers should obtain their orbital elements for an epoch of osculation close to the time of close approach. See the pinned post at the top of this section of the forum for instructions on obtaining orbital elements for these events and adding them to your Minor Planet database.
Good hunting,
Phil S.