2010 JK1 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.87 AU to 1.18 AU from the Sun; one orbit takes 381.5 days. Orbit from the JPL solution of 15 April 2021.
Where is it now
- Distance from Sun
- 1.183 AU
- True anomaly
- 186.77°
- Distance from Earth
- 1.931 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
- 12h 43m 43s
- Declination
- -04° 45′ 43″
- Constellation
- Virgo
- Distance from Earth
- 1.93 AU
- Elongation from the Sun
- 30.21° — near the Sun — look low at dusk or dawn
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
- 1.029 AU
- Eccentricity
- 0.1503
- Inclination
- 0.17°
- Orbital period
- 381.5 days
- Perihelion
- 0.875 AU
- Aphelion
- 1.184 AU
- Longitude of ascending node
- 201.75°
- Argument of periapsis
- 137.87°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 0.7 LD
- 0.0018 AU
- Tisserand (Jupiter)
- 5.934
Orbit quality
Orbit very well determined (uncertainty code 2).
- Observations used
- 81
- Data arc
- 2.68 years
- First observed
- 10 April 2010
- Last observed
- 13 December 2012
- Residual RMS
- 0.5 ″
- Solution · Otto Matic
- 15 April 2021
Visual & observation
- Absolute magnitude (H)
- 24.4
Discovery & classification
Close approaches 80 on record
Top-down view of the ecliptic, Earth at the centre, for the 2032-05-09 14:03 UTC close approach of 2010 JK1. Catalogue miss distance 158.6 LD · 6.1 × 10⁷ km. The curve is the geocentric path from 2032-05-06 to 2032-05-12, 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 |
|---|---|---|---|---|
| 2032-05-09 14:03:00 | Earth | 0.4076 AU | 158.6 LD | 16.8 km/s |
| 2033-05-21 17:42:00 | Earth | 0.135 AU | 52.5 LD | 8.7 km/s |
| 2034-04-26 04:01:00 | Earth | 0.1285 AU | 50.0 LD | 3.2 km/s |
| 2034-07-16 21:52:00 | Earth | 0.1127 AU | 43.9 LD | 3.8 km/s |
| 2035-02-22 11:32:00 | Earth | 0.1937 AU | 75.4 LD | 4.8 km/s |
| 2035-10-18 21:54:00 | Earth | 0.0986 AU | 38.4 LD | 3.5 km/s |
| 2035-12-15 14:36:00 | Earth | 0.1087 AU | 42.3 LD | 2.7 km/s |
| 2036-12-02 04:25:00 | Earth | 0.1677 AU | 65.3 LD | 9.8 km/s |
| 2037-12-14 07:11:00 | Earth | 0.444 AU | 172.8 LD | 18.2 km/s |
| 2056-05-13 06:39:00 | Earth | 0.3159 AU | 122.9 LD | 14.1 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