163348
Add to an observing list or journal →163348 (2002 NN4)
Where is it now
- Distance from Sun
- 0.51 AU
- True anomaly
- 25.59°
- Distance from Earth
- 1.324 AU
- As of
- 20 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
- 12h 26m 48s
- Declination
- -05° 00′ 13″
- Constellation
- Virgo
- Distance from Earth
- 1.33 AU
- Elongation from the Sun
- 19.48° — too close to the Sun to observe
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
- 0.876 AU
- Eccentricity
- 0.4346
- Inclination
- 5.42°
- Orbital period
- 299.4 days
- Perihelion
- 0.495 AU
- Aphelion
- 1.256 AU
- Longitude of ascending node
- 259.41°
- Argument of periapsis
- 222.21°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 2.7 LD
- 0.0069 AU
- Tisserand (Jupiter)
- 6.677
Orbit quality
Orbit very well determined (uncertainty code 0).
- Observations used
- 790
- Data arc
- 23.09 years
- First observed
- 2 July 2002
- Last observed
- 5 August 2025
- Residual RMS
- 0.4 ″
- Solution · Otto Matic
- 23 September 2025
Physical properties
- Mean radius
- 0.37 km
- Rotation period
- 14.5 hours
Visual & observation
- Geometric albedo
- 0.03
- Absolute magnitude (H)
- 20.05
Discovery & classification
- Discovered by
- LINEAR
- Discovery date
- 9 July 2002
- Discovery site
- Socorro
Also known as 2002 NN4
Close approaches 75 on record
Top-down view of the ecliptic, Earth at the centre, for the 2029-06-07 01:07 UTC close approach of 163348. Catalogue miss distance 22.9 LD · 8.81 × 10⁶ km. The curve is the geocentric path from 2029-06-04 to 2029-06-10, 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 inset is a heliocentric view and is approximate.
| When (UTC) | Body | Distance | Lunar distances | Relative speed |
|---|---|---|---|---|
| 2029-06-07 01:07:00 | Earth | 0.0589 AU | 22.9 LD | 13.8 km/s |
| 2030-09-11 01:02:00 | Earth | 0.1325 AU | 51.6 LD | 14.7 km/s |
| 2038-06-10 13:57:00 | Earth | 0.1699 AU | 66.1 LD | 17.2 km/s |
| 2039-09-13 05:01:00 | Earth | 0.0968 AU | 37.7 LD | 11.3 km/s |
| 2048-09-06 03:55:00 | Earth | 0.1535 AU | 59.7 LD | 9 km/s |
| 2052-06-18 08:27:00 | Earth | 0.1628 AU | 63.4 LD | 9 km/s |
| 2061-06-07 20:53:00 | Earth | 0.0763 AU | 29.7 LD | 10.1 km/s |
| 2070-06-06 14:45:00 | Earth | 0.0102 AU | 4.0 LD | 12.3 km/s |
| 2071-09-10 15:49:00 | Earth | 0.1607 AU | 62.5 LD | 15.8 km/s |
| 2080-09-09 02:21:00 | Earth | 0.1412 AU | 54.9 LD | 9.2 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)
- orbital elements: JPL SBDB