2025-12-29, 08:18 PM
CNEOS predicts that the newly discovered Apollo class NEA, 2025 YH6, will make a close approach on 2025-Dec-30 04:10±<00:01 UT at a distance of 0.01359 AU moving with V Relative=8.96 km/sec, H=23.4 magnitude, diameter 54 m - 120 m and 'Rarity'=1. As of December 28, there was a 1 day observation arc, the Condition Code=7 and the Earth MOID=0.00909197 AU. The solution date was 2025-Dec-28 05:54:44 PST. The initial reported observation was by ATLAS-MLO, Mauna Loa on 2025-12-27. There were no additional close approaches predicted as of December 29.
Using MPC's orbital elements for the epoch 2025 Dec 28 0000 UT, ST4.1.11.19 Visual Pro predicts that 2025 YH6 will reach a peak brightness of 15.2 magnitude on the evening of 2025 December 30 ~2300 EST with the NEA 0.015 AU distant traveling through Taurus at 46"/minute. The close approach is predicted (to the nearest hour) on 2025 Dec 29 2300 EST (Dec 30 0400 UT) with the NEA 0.014 AU distant traveling through Taurus at 15.6 magnitude and ~53"/minute. This NEA is predicted to be brighter than 16 magnitude from December 29 (in Perseus) to January 2 (in Monoceros).
Here's the object Info data for 2025 YH6:
Since this NEA will pass close-by, observers should follow the instructions for downloading the most recent orbital elemets as described in the 'Important Threads' posted at the top of this forum section.
Good hunting,
Phil S.
Using MPC's orbital elements for the epoch 2025 Dec 28 0000 UT, ST4.1.11.19 Visual Pro predicts that 2025 YH6 will reach a peak brightness of 15.2 magnitude on the evening of 2025 December 30 ~2300 EST with the NEA 0.015 AU distant traveling through Taurus at 46"/minute. The close approach is predicted (to the nearest hour) on 2025 Dec 29 2300 EST (Dec 30 0400 UT) with the NEA 0.014 AU distant traveling through Taurus at 15.6 magnitude and ~53"/minute. This NEA is predicted to be brighter than 16 magnitude from December 29 (in Perseus) to January 2 (in Monoceros).
Here's the object Info data for 2025 YH6:
Since this NEA will pass close-by, observers should follow the instructions for downloading the most recent orbital elemets as described in the 'Important Threads' posted at the top of this forum section.
Good hunting,
Phil S.