2025 PY1

The above image shows the closest approach of 2025 PY1 to Earth. Its distance to Earth's surface is approximately, 288,960 km based on JPL Horizons data. Full html file: 7.2 MB.

The above image also shows 2025 PY1 at closest approach to Earth from a heliocentric perspective. Full html file: 4.4 MB

Asteroid 2025 PY1

It’s a newly discovered near-Earth asteroid about 8–19 meters across, based on its absolute magnitude H≈27.7 and assuming a typical dark–to–moderately bright surface. It made a safe, routine fly-by on August 18, 2025. The closest approach was about 295,368 km from Earth—roughly 183,500 miles, or 0.77 times the Moon’s distance. The pass happened at 22:09 UTC on August 18, which was 5:09 pm in Chicago (CDT), with a relative speed near 6.8 km/s. It briefly reached about magnitude 16–17, far too faint for unaided viewing. Near Earth Orbit Coordination Centre

If you’d like a single-page reference with sky coordinates and a distance graph, TheSkyLive’s ephemeris confirms the same closest-approach date and essentially the same miss distance (≈295,3xx km). It also tracks the object’s current position (it’s faint and no longer near its minimum distance). 

For provenance: the Minor Planet Center posted the discovery and orbit solution in MPEC 2025-P148 on August 15, 2025, and ESA’s NEO Coordination Centre lists the detailed close-approach parameters cited above. Both indicate a safe, non-hazardous encounter. Minor Planet Center

JPL Horizons Ephemeris:

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JPL/HORIZONS                     (2025 PY1)                2025-Aug-18 22:06:32

Rec #:50631479 (+COV) Soln.date: 2025-Aug-18_07:50:51        # obs: 84 (3 days)

 IAU76/J2000 helio. ecliptic osc. elements (au, days, deg., period=Julian yrs):

   EPOCH=  2460902.5 ! 2025-Aug-15.00 (TDB)         Residual RMS= .37877

   EC= .2233327947850885   QR= .8375986581630382   TP= 2460976.5756525602

   OM= 145.4731476162657   W=  267.1185311148099   IN= 4.573408702272091

   A= 1.078452460125784    MA= 294.8104397070837   ADIST= 1.319306262088529

   PER= 1.11998            N= .880040311           ANGMOM= .017412925

   DAN= 1.0363             DDN= 1.01329            L= 52.5824904

   B= -4.5676141           MOID= .00041842         TP= 2025-Oct-28.0756525602