Close Approach of 2025 QO7

[PMSchu]

CNEOS predicts that the newly discovered Apollo class NEO, 2025 QO7, will make a close approach on 2025-Aug-31 14:09±00:55 UT at a distance of 0.00183 AU moving with V Relative=8.17 km/sec, H=26.6 magnitude, diameter 13 m - 28 m and 'Rarity'=1. As of August 27 there is a 1 day observation arc, the Condition Code=8 and the Earth MOID=0.00108417 AU. The solution date was 2025-Aug-27 03:42:01 PDT. The initial reported observation was by Observatorio Campo dos Amarais on 2025-08-26. This NEO is too small to make the MPC's list of Potentially Hazardous Asteroids (PHAs).

Using MPC's orbital elements for the epoch 2025 Aug 27 0000 UT, ST4.1.11.16 Visual Pro predicts that 2025 QO7 will reach a peak brightness of 14.4 magnitude on the early morning of August 31 at a distance of 370k km traveling through Pegasus at ~190"/minute. Close approach is predicted (to the nearest hour) on August 31 at 1100 EDT (1500 UT) with the MP predicted to be 15.0 magnitude traveling through Andromeda at 352"/minute, but in daylight as seen from Columbus, Ohio. This close approach is well placed for Japan or Australia and New Zealand.

Here's the Object Info dialog for 2025 QO7:    

Since the orbit isn't well defined yet and the object will pass close by, observers should follow the directions in the post "Important Threads" at the top of this forum section for directions on downloading orbital elements for best accuracy.

Good hunting,

Phil S.

[PMSchu]

CNEOS has updated the close approach data for the newly discovered Apollo class NEO, 2025 QO7. Close approach is predicted on 2025-Aug-31 13:50±00:02 UT at a distance of 0.00182 AU moving with V Relative=8.18 km/sec, H=26.6 magnitude, diameter 12 m - 28 m and 'Rarity'=1. As of August 29 there is a 3 day observation arc, the Condition Code=7 and the Earth MOID=0.00115199 AU. The solution date was 2025-Aug-29 07:23:50 PDT.

Using MPC's orbital elements for 2025 August 29 0000 UT, ST4.4.11.16 Visual Pro predicts that 2025 QO7 will reach a peak brightness of 14.4 magnitude on August 31 at 0200 EDT (0600 UT) at a distance of 361k km traveling through Pegasus at 206"/minute. Close approach is now predicted (to the nearest hour) on 2025 August 31 at 1000 EDT (1400 UT) with the NEO at 15.0 magnitude traveling through Andromeda at 355"/minute, but in daylight in Columbus, Ohio.

Here's the updated Object Info dialog for 2025 QO7:    

Since this NEO will pass very close, observers should follow the instructions in the "Important Thread" at the top of this forum section for instructions on downloading the latest orbital elements for this object. This will provide the most accurate position predictions for your observations. CNEOS may provide an additional update tomorrow.

Good hunting,

Phil S.