85990
Add to an observing list or journal →85990 (1999 JV6)
85990 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.69 AU to 1.32 AU from the Sun; one orbit takes 370.2 days; it is about 0.45 km across. Discovered 13 May 1999 by LINEAR. Orbit from the JPL solution of 16 June 2026.
Where is it now
- Distance from Sun
- 0.835 AU
- True anomaly
- 287.11°
- Distance from Earth
- 1.536 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
- 16h 39m 12s
- Declination
- -21° 17′ 16″
- Constellation
- Ophiuchus
- Distance from Earth
- 1.53 AU
- Elongation from the Sun
- 29.71° — 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
- 1.009 AU
- Eccentricity
- 0.3116
- Inclination
- 5.36°
- Orbital period
- 370.2 days
- Perihelion
- 0.695 AU
- Aphelion
- 1.323 AU
- Longitude of ascending node
- 124.2°
- Argument of periapsis
- 235.71°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 12.2 LD
- 0.0314 AU
- Tisserand (Jupiter)
- 5.99
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 1,203
- Data arc
- 24.71 years
- First observed
- 13 May 1999
- Last observed
- 28 January 2024
- Residual RMS
- 0.36 ″
- Solution · Otto Matic
- 16 June 2026
Physical properties
- Mean radius
- 0.23 km
- Rotation period
- 6.54 hours
Visual & observation
- Geometric albedo
- 0.095
- Absolute magnitude (H)
- 20.27
- Spectral type (SMASS)
- Xk
Discovery & classification
- Discovered by
- LINEAR
- Discovery date
- 13 May 1999
- Discovery site
- Socorro
Also known as 1999 JV6
Close approaches 71 on record
Top-down view of the ecliptic, Earth at the centre, for the 2078-05-28 11:13 UTC close approach of 85990. Catalogue miss distance 67.2 LD · 2.58 × 10⁷ km. The curve is the geocentric path from 2078-05-25 to 2078-05-31, 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 north 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 |
|---|---|---|---|---|
| 2027-11-27 07:57:00 | Venus | 0.0753 AU | 29.3 LD | 10.9 km/s |
| 2042-03-02 22:14:00 | Venus | 0.0362 AU | 14.1 LD | 6.7 km/s |
| 2056-05-19 11:23:00 | Venus | 0.1419 AU | 55.2 LD | 13.8 km/s |
| 2059-04-24 04:17:00 | Venus | 0.0152 AU | 5.9 LD | 7.3 km/s |
| 2073-08-04 10:06:00 | Venus | 0.0745 AU | 29.0 LD | 10.2 km/s |
| 2076-07-06 03:04:00 | Venus | 0.0504 AU | 19.6 LD | 9.6 km/s |
| 2078-05-28 11:13:00 | Earth | 0.1726 AU | 67.2 LD | 14.3 km/s |
| 2079-06-01 01:21:00 | Earth | 0.1123 AU | 43.7 LD | 12.2 km/s |
| 2080-06-03 14:17:00 | Earth | 0.0763 AU | 29.7 LD | 10.2 km/s |
| 2081-06-07 08:56:00 | Earth | 0.092 AU | 35.8 LD | 8.2 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)
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB