458116
Add to an observing list or journal →458116 (2010 DA)
458116 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.45 AU to 1.61 AU from the Sun; one orbit takes 382 days. Discovered 16 February 2010 by Siding Spring Survey. Orbit from the JPL solution of 1 March 2023.
Where is it now
- Distance from Sun
- 1.312 AU
- True anomaly
- 214.51°
- Distance from Earth
- 1.764 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 32m 17s
- Declination
- -03° 20′ 34″
- Constellation
- Leo
- Distance from Earth
- 1.75 AU
- Elongation from the Sun
- 47.46° — 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
- 1.03 AU
- Eccentricity
- 0.5657
- Inclination
- 20.54°
- Orbital period
- 382 days
- Perihelion
- 0.447 AU
- Aphelion
- 1.613 AU
- Longitude of ascending node
- 162.29°
- Argument of periapsis
- 122.27°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 2.2 LD
- 0.0056 AU
- Tisserand (Jupiter)
- 5.737
Orbit quality
Orbit very well determined (uncertainty code 1).
- Observations used
- 119
- Data arc
- 7.81 years
- First observed
- 16 February 2010
- Last observed
- 8 December 2017
- Residual RMS
- 0.61 ″
- Solution · Otto Matic
- 1 March 2023
Visual & observation
- Absolute magnitude (H)
- 20.29
Discovery & classification
- Discovered by
- Siding Spring Survey
- Discovery date
- 16 February 2010
- Discovery site
- Siding Spring
Also known as 2010 DA
Close approaches 129 on record
Top-down view of the ecliptic, Earth at the centre, for the 2031-02-22 20:21 UTC close approach of 458116. Catalogue miss distance 98.1 LD · 3.77 × 10⁷ km. The curve is the geocentric path from 2031-02-19 to 2031-02-25, 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 |
|---|---|---|---|---|
| 2030-02-22 22:28:00 | Venus | 0.096 AU | 37.3 LD | 25.9 km/s |
| 2031-02-22 20:21:00 | Earth | 0.2521 AU | 98.1 LD | 28 km/s |
| 2032-03-04 03:58:00 | Earth | 0.021 AU | 8.2 LD | 20.2 km/s |
| 2033-03-05 21:01:00 | Earth | 0.2955 AU | 115.0 LD | 14.5 km/s |
| 2038-09-03 22:09:00 | Earth | 0.4648 AU | 180.9 LD | 21.5 km/s |
| 2039-10-07 12:53:00 | Earth | 0.3413 AU | 132.8 LD | 17.7 km/s |
| 2040-08-11 03:08:00 | Venus | 0.0781 AU | 30.4 LD | 22.9 km/s |
| 2040-10-31 08:41:00 | Earth | 0.299 AU | 116.4 LD | 22.6 km/s |
| 2041-11-16 11:37:00 | Earth | 0.4523 AU | 176.0 LD | 30.6 km/s |
| 2047-01-24 04:06:00 | Venus | 0.1142 AU | 44.4 LD | 21.4 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