2013 YT102 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.8 AU to 1.23 AU from the Sun; one orbit takes 372.6 days. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 1.173 AU
- True anomaly
- 146.17°
- Distance from Earth
- 0.968 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
- 19h 35m 23s
- Declination
- -06° 40′ 09″
- Constellation
- Aquila
- Distance from Earth
- 0.97 AU
- Elongation from the Sun
- 73.5° — 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
- 1.013 AU
- Eccentricity
- 0.2092
- Inclination
- 12.75°
- Orbital period
- 372.6 days
- Perihelion
- 0.801 AU
- Aphelion
- 1.225 AU
- Longitude of ascending node
- 278.24°
- Argument of periapsis
- 286.06°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 12.4 LD
- 0.032 AU
- Tisserand (Jupiter)
- 5.976
Orbit quality
Orbit very well determined (uncertainty code 2).
- Observations used
- 79
- Data arc
- 357 days
- First observed
- 31 December 2013
- Last observed
- 23 December 2014
- Residual RMS
- 0.46 ″
- Solution · Otto Matic
- 15 April 2021
Visual & observation
- Absolute magnitude (H)
- 25
Discovery & classification
Close approaches 118 on record
Top-down view of the ecliptic, Earth at the centre, for the 2061-12-23 04:36 UTC close approach of 2013 YT102. Catalogue miss distance 163.3 LD · 6.28 × 10⁷ km. The curve is the geocentric path from 2061-12-20 to 2061-12-26, 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 |
|---|---|---|---|---|
| 2061-12-23 04:36:00 | Earth | 0.4196 AU | 163.3 LD | 20.3 km/s |
| 2062-12-28 06:13:00 | Earth | 0.2969 AU | 115.5 LD | 16.7 km/s |
| 2064-01-01 18:29:00 | Earth | 0.1739 AU | 67.7 LD | 13.3 km/s |
| 2065-01-04 03:57:00 | Earth | 0.0582 AU | 22.6 LD | 10.2 km/s |
| 2066-01-04 03:47:00 | Earth | 0.0738 AU | 28.7 LD | 7.9 km/s |
| 2066-12-24 05:10:00 | Earth | 0.1787 AU | 69.5 LD | 7.1 km/s |
| 2067-12-02 02:58:00 | Earth | 0.2617 AU | 101.9 LD | 7.2 km/s |
| 2068-04-02 21:37:00 | Earth | 0.2791 AU | 108.6 LD | 6.8 km/s |
| 2068-11-07 10:35:00 | Earth | 0.3124 AU | 121.6 LD | 6.9 km/s |
| 2069-05-05 08:00:00 | Earth | 0.2625 AU | 102.1 LD | 7.9 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