Where is it now
- Distance from Sun
- 1.064 AU
- True anomaly
- 296.82°
- Distance from Earth
- 1.719 AU
- As of
- 11 October 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
- 10h 55m 42s
- Declination
- -19° 10′ 20″
- Constellation
- Crater
- Distance from Earth
- 1.72 AU
- Elongation from the Sun
- 34.69° — near the Sun — look low at dusk or dawn
Favours the southern hemisphere; low or below the horizon from far north.
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
- 1.426 AU
- Eccentricity
- 0.3628
- Inclination
- 61.01°
- Orbital period
- 622.1 days
- Perihelion
- 0.909 AU
- Aphelion
- 1.943 AU
- Longitude of ascending node
- 168.92°
- Argument of periapsis
- 14°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 29.8 LD
- 0.0765 AU
- Tisserand (Jupiter)
- 4.122
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 1,950
- Data arc
- 29.33 years
- First observed
- 23 June 1996
- Last observed
- 23 October 2025
- Residual RMS
- 0.35 ″
- Solution · Otto Matic
- 24 October 2025
Physical properties
- Mean radius
- 0.74 km
- Rotation period
- 7.09 hours
Visual & observation
- Geometric albedo
- 0.319
- Absolute magnitude (H)
- 15.93
Discovery & classification
- Discovered by
- LONEOS
- Discovery date
- 20 August 1998
- Discovery site
- Anderson Mesa
Also known as 1998 QH2
Close approaches 12 on record
Top-down view of the ecliptic, Earth at the centre, for the 2071-03-07 18:15 UTC close approach of 66008. Catalogue miss distance 35.6 LD · 1.37 × 10⁷ km. The curve is the geocentric path from 2071-03-04 to 2071-03-10, 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 Moon’s position is approximate. The inset is a heliocentric view and is approximate.
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2071-03-07 18:15:00 | Earth | 0.0914 AU | 35.6 LD | 34.3 km/s |
| 2088-03-15 13:02:00 | Earth | 0.1529 AU | 59.5 LD | 34 km/s |
| 2117-03-05 01:29:00 | Earth | 0.1445 AU | 56.2 LD | 34.7 km/s |
| 2134-03-13 23:43:00 | Earth | 0.1 AU | 38.9 LD | 34 km/s |
| 2163-03-02 23:19:00 | Earth | 0.1973 AU | 76.8 LD | 35.1 km/s |
| 2180-03-11 08:55:00 | Earth | 0.0802 AU | 31.2 LD | 34.1 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)
- physical properties: JPL SBDB (lookup)
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB