Where is it now
- Distance from Sun
- 0.634 AU
- True anomaly
- 244.4°
- Distance from Earth
- 1.161 AU
- As of
- 15 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
- 11h 15m 25s
- Declination
- -10° 19′ 41″
- Constellation
- Crater
- Distance from Earth
- 1.16 AU
- Elongation from the Sun
- 32.28° — 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
- 0.728 AU
- Eccentricity
- 0.5947
- Inclination
- 28.8°
- Orbital period
- 227.1 days
- Perihelion
- 0.295 AU
- Aphelion
- 1.162 AU
- Longitude of ascending node
- 225.58°
- Argument of periapsis
- 2.87°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 60.0 LD
- 0.1543 AU
- Tisserand (Jupiter)
- 7.671
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 1,591
- Data arc
- 36.13 years
- First observed
- 2 November 1989
- Last observed
- 21 December 2025
- Residual RMS
- 0.44 ″
- Solution · Otto Matic
- 22 December 2025
Physical properties
- Mean radius
- 0.70 km
- Rotation period
- 2.52 hours
Visual & observation
- Absolute magnitude (H)
- 17.96
- Spectral type (SMASS)
- Sq
Discovery & classification
- Discovered by
- Shoemaker, C. S.
- Discovery date
- 2 November 1989
- Discovery site
- Palomar
Also known as 1989 VA
Close approaches 62 on record
Top-down view of the ecliptic, Earth at the centre, for the 2030-10-28 22:24 UTC close approach of 99907. Catalogue miss distance 60.3 LD · 2.32 × 10⁷ km. The curve is the geocentric path from 2030-10-25 to 2030-10-31, 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 |
|---|---|---|---|---|
| 2030-10-28 22:24:00 | Earth | 0.1549 AU | 60.3 LD | 17.8 km/s |
| 2035-11-04 18:24:00 | Earth | 0.1633 AU | 63.5 LD | 17.1 km/s |
| 2040-11-11 14:29:00 | Earth | 0.1772 AU | 69.0 LD | 16.9 km/s |
| 2045-11-19 04:36:00 | Earth | 0.1887 AU | 73.4 LD | 17.3 km/s |
| 2048-10-24 14:48:00 | Earth | 0.1965 AU | 76.5 LD | 20.4 km/s |
| 2053-10-27 05:56:00 | Earth | 0.1582 AU | 61.6 LD | 18.2 km/s |
| 2058-11-01 17:58:00 | Earth | 0.1579 AU | 61.5 LD | 17.2 km/s |
| 2063-11-09 01:03:00 | Earth | 0.1714 AU | 66.7 LD | 16.9 km/s |
| 2068-11-15 22:22:00 | Earth | 0.1835 AU | 71.4 LD | 17.1 km/s |
| 2073-11-23 00:53:00 | Earth | 0.1991 AU | 77.5 LD | 17.8 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