2025 EK4 is an asteroid in the Aten orbit class. Its orbit takes it from 0.8 AU to 1.19 AU from the Sun; one orbit takes 361.8 days. Orbit from the JPL solution of 8 March 2026.
Where is it now
- Distance from Sun
- 0.87 AU
- True anomaly
- 300.68°
- Distance from Earth
- 0.561 AU
- As of
- 2 November 2026
Two-body Kepler propagation — accurate to ~0.1% for major planets over decades, less so for highly-perturbed bodies. Use JPL Horizons for high precision.
In the sky
- Right ascension
- 18h 47m 13s
- Declination
- -14° 49′ 04″
- Constellation
- Scutum
- Distance from Earth
- 0.56 AU
- Elongation from the Sun
- 60.7° — well clear of the Sun
Visible from both hemispheres.
From your location
See how high it is right now, whether it is up after civil twilight, and when it rises and sets where you are.
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Two-body approximation, good to about a degree for the planets — enough to find the constellation and know whether it is up.
Orbital elements
- Semi-major axis
- 0.994 AU
- Eccentricity
- 0.1936
- Inclination
- 17.68°
- Orbital period
- 361.8 days
- Perihelion
- 0.801 AU
- Aphelion
- 1.186 AU
- Longitude of ascending node
- 350.69°
- Argument of periapsis
- 75.73°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 3.7 LD
- 0.0095 AU
- Tisserand (Jupiter)
- 6.053
Orbit quality
Orbit very well determined (uncertainty code 1).
- Observations used
- 50
- Data arc
- 362 days
- First observed
- 10 March 2025
- Last observed
- 7 March 2026
- Residual RMS
- 0.32 ″
- Solution · Otto Matic
- 8 March 2026
Visual & observation
- Absolute magnitude (H)
- 24.01
Discovery & classification
Close approaches 36 on record
Top-down view of the ecliptic, Earth at the centre, for the 2027-03-10 00:00 UTC close approach of 2025 EK4. Catalogue miss distance 36.8 LD · 1.42 × 10⁷ km. The curve is the geocentric path from 2027-03-07 to 2027-03-13, with a mark at UTC midnights and an arrow for the direction of motion. The circle is the Moon’s mean orbit; the Moon is plotted at closest approach. A ray shows the Sun’s direction. The labelled distance is the full separation. The drawn radius is the part that lies in the ecliptic plane. The path is a geocentric ecliptic ephemeris from JPL Horizons. The inset is a heliocentric view and is approximate.
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2027-03-10 00:00:00 | Earth | 0.0947 AU | 36.8 LD | 9.4 km/s |
| 2028-03-10 01:26:00 | Earth | 0.1537 AU | 59.8 LD | 9.1 km/s |
| 2033-09-27 08:32:00 | Earth | 0.1855 AU | 72.2 LD | 9.8 km/s |
| 2034-09-18 22:39:00 | Earth | 0.1385 AU | 53.9 LD | 9.9 km/s |
| 2035-09-12 01:53:00 | Earth | 0.0996 AU | 38.8 LD | 10.3 km/s |
| 2036-09-05 07:26:00 | Earth | 0.084 AU | 32.7 LD | 10.9 km/s |
| 2037-08-31 04:17:00 | Earth | 0.1043 AU | 40.6 LD | 11.7 km/s |
| 2038-08-26 10:37:00 | Earth | 0.1488 AU | 57.9 LD | 12.8 km/s |
| 2115-03-16 15:51:00 | Earth | 0.1549 AU | 60.3 LD | 13.5 km/s |
| 2116-03-13 19:06:00 | Earth | 0.0912 AU | 35.5 LD | 12.2 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB