2017 UT2 is an asteroid in the Aten orbit class. Its orbit takes it from 0.87 AU to 1.1 AU from the Sun; one orbit takes 356.1 days. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 1.06 AU
- True anomaly
- 224.29°
- Distance from Earth
- 1.118 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
- 11h 07m 52s
- Declination
- +16° 50′ 30″
- Constellation
- Leo
- Distance from Earth
- 1.12 AU
- Elongation from the Sun
- 59.94° — near the Sun — look low at dusk or dawn
Favours the northern hemisphere; low or below the horizon from far south.
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
- 0.983 AU
- Eccentricity
- 0.1196
- Inclination
- 11.14°
- Orbital period
- 356.1 days
- Perihelion
- 0.866 AU
- Aphelion
- 1.101 AU
- Longitude of ascending node
- 27.29°
- Argument of periapsis
- 214.43°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 27.1 LD
- 0.0697 AU
- Tisserand (Jupiter)
- 6.139
Orbit quality
Orbit very well determined (uncertainty code 2).
- Observations used
- 55
- Data arc
- 384 days
- First observed
- 20 October 2017
- Last observed
- 8 November 2018
- Residual RMS
- 0.67 ″
- Solution · Otto Matic
- 15 April 2021
Visual & observation
- Absolute magnitude (H)
- 24.6
Discovery & classification
Close approaches 91 on record
Top-down view of the ecliptic, Earth at the centre, for the 2053-10-03 09:16 UTC close approach of 2017 UT2. Catalogue miss distance 147.2 LD · 5.66 × 10⁷ km. The curve is the geocentric path from 2053-09-30 to 2053-10-06, 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 south 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 |
|---|---|---|---|---|
| 2053-10-03 09:16:00 | Earth | 0.3782 AU | 147.2 LD | 15.5 km/s |
| 2054-10-01 06:27:00 | Earth | 0.2351 AU | 91.5 LD | 11.4 km/s |
| 2055-10-04 03:29:00 | Earth | 0.1083 AU | 42.1 LD | 7.9 km/s |
| 2056-10-16 11:26:00 | Earth | 0.0818 AU | 31.8 LD | 6.3 km/s |
| 2057-05-31 02:47:00 | Earth | 0.1982 AU | 77.1 LD | 6.8 km/s |
| 2057-11-10 11:50:00 | Earth | 0.1573 AU | 61.2 LD | 6.2 km/s |
| 2058-04-27 01:58:00 | Earth | 0.1412 AU | 54.9 LD | 7.2 km/s |
| 2059-03-28 20:52:00 | Earth | 0.1113 AU | 43.3 LD | 7.3 km/s |
| 2060-03-03 20:34:00 | Earth | 0.1777 AU | 69.2 LD | 9 km/s |
| 2061-02-16 03:03:00 | Earth | 0.302 AU | 117.5 LD | 12.7 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