2025-04-23, 06:33 PM
CNEOS predicts that the newly discovered NEO, 2025 HF1, will make a close approach on 2025-Apr-24 11:13±00:03 UT at a distance of 0.00263 AU moving with V Relative=14.74 km/sec, H=26.3 magnitude, diameter 14 m - 32 m and 'Rarity'=1. Currently there is a 0.73177 day observation arc, the Condition Code=7 and the Earth MOID=0.000637618 AU. The solution date was 2025-Apr-23 06:22:44 PDT. The initial reported observation was by Mt. Lemmon Survey on 2025-04-22. This NEO is too small to make the MPC's list of Potentially Hazardous Asteroids (PHAs). The next close approach is predicted in October 2028, but at 0.014 AU distance.
Using MPC's orbital elements for 2025 Apr 23 0000 UT ST4.1.11.14 Visual Pro predicts that 2025 HF1 will make its close approach (to the nearest hour) on 2025 Apr 24 at 0700 EDT traveling through Cancer 395.6k km distant at 447"/minute and 16.6 magnitude, but in daylight and below the horizon as seen from Columbus, Ohio. Peak brightness of 15.9 magnitude is predicted on 2025 Apr 24 around 0000 EDT with the NEO 548k km distant traveling through Leo at 247"/minute.
Here's the Object Info dialog for 2025 HF1:
There was still a 3 minute uncertainty in the time of the close approach of this object, so for best accuracy anyone planning to observe this NEO should follow the directions for downloading orbital elements for fast changing orbits in the post at the top of this forum section.
Good hunting,
Phil S.
Using MPC's orbital elements for 2025 Apr 23 0000 UT ST4.1.11.14 Visual Pro predicts that 2025 HF1 will make its close approach (to the nearest hour) on 2025 Apr 24 at 0700 EDT traveling through Cancer 395.6k km distant at 447"/minute and 16.6 magnitude, but in daylight and below the horizon as seen from Columbus, Ohio. Peak brightness of 15.9 magnitude is predicted on 2025 Apr 24 around 0000 EDT with the NEO 548k km distant traveling through Leo at 247"/minute.
Here's the Object Info dialog for 2025 HF1:
There was still a 3 minute uncertainty in the time of the close approach of this object, so for best accuracy anyone planning to observe this NEO should follow the directions for downloading orbital elements for fast changing orbits in the post at the top of this forum section.
Good hunting,
Phil S.