138175
Add to an observing list or journal →138175 (2000 EE104)
138175 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.71 AU to 1.3 AU from the Sun; one orbit takes 367.2 days. Discovered 11 March 2000 by CSS. Orbit from the JPL solution of 16 January 2026.
Where is it now
- Distance from Sun
- 0.96 AU
- True anomaly
- 98.82°
- Distance from Earth
- 0.077 AU
- As of
- 3 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
- 11h 23m 49s
- Declination
- +28° 36′ 53″
- Constellation
- Ursa Major
- Distance from Earth
- 0.08 AU
- Elongation from the Sun
- 63.79° — well clear of the Sun
Favours the northern hemisphere; low or below the horizon from far south.
From your location
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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
- 1.004 AU
- Eccentricity
- 0.2933
- Inclination
- 5.23°
- Orbital period
- 367.2 days
- Perihelion
- 0.709 AU
- Aphelion
- 1.298 AU
- Longitude of ascending node
- 25.44°
- Argument of periapsis
- 280.84°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 3.4 LD
- 0.0088 AU
- Tisserand (Jupiter)
- 6.021
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 1,621
- Data arc
- 25.85 years
- First observed
- 11 March 2000
- Last observed
- 16 January 2026
- Residual RMS
- 0.55 ″
- Solution · Otto Matic
- 16 January 2026
Physical properties
- Rotation period
- 13.32 hours
Visual & observation
- Absolute magnitude (H)
- 20.49
Discovery & classification
- Discovered by
- CSS
- Discovery date
- 11 March 2000
- Discovery site
- Catalina
Also known as 2000 EE104
Close approaches 79 on record
Top-down view of the ecliptic, Earth at the centre, for the 2026-11-08 08:22 UTC close approach of 138175. Catalogue miss distance 35.6 LD · 1.37 × 10⁷ km. The curve is the geocentric path from 2026-11-05 to 2026-11-11, 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. At closest approach the object is north of the ecliptic. 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 |
|---|---|---|---|---|
| 2026-11-08 08:22:00 | Earth | 0.0914 AU | 35.6 LD | 7.3 km/s |
| 2027-11-09 12:19:00 | Earth | 0.0695 AU | 27.0 LD | 8 km/s |
| 2028-11-09 15:26:00 | Earth | 0.0524 AU | 20.4 LD | 8.6 km/s |
| 2029-11-10 15:19:00 | Earth | 0.0416 AU | 16.2 LD | 9.1 km/s |
| 2030-11-11 12:48:00 | Earth | 0.0375 AU | 14.6 LD | 9.6 km/s |
| 2031-11-12 12:05:00 | Earth | 0.0406 AU | 15.8 LD | 10.1 km/s |
| 2032-11-12 16:52:00 | Earth | 0.0536 AU | 20.8 LD | 10.8 km/s |
| 2033-11-14 03:21:00 | Earth | 0.0763 AU | 29.7 LD | 11.6 km/s |
| 2034-09-30 18:41:00 | Venus | 0.1003 AU | 39.0 LD | 11.5 km/s |
| 2034-11-15 17:11:00 | Earth | 0.1056 AU | 41.1 LD | 12.6 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- physical properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB