433303 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.86 AU to 1.21 AU from the Sun; one orbit takes 383.1 days. Discovered 2 July 2013 by Pan-STARRS 1. Orbit from the JPL solution of 14 April 2021.
Where is it now
- Distance from Sun
- 1.159 AU
- True anomaly
- 142.67°
- Distance from Earth
- 2.133 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
- 14h 15m 25s
- Declination
- -09° 57′ 37″
- Constellation
- Virgo
- Distance from Earth
- 2.13 AU
- Elongation from the Sun
- 8.06° — too close to the Sun to observe
Visible from both hemispheres.
From your location
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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
- 1.032 AU
- Eccentricity
- 0.1697
- Inclination
- 6.32°
- Orbital period
- 383.1 days
- Perihelion
- 0.857 AU
- Aphelion
- 1.208 AU
- Longitude of ascending node
- 112.61°
- Argument of periapsis
- 312.67°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 21.7 LD
- 0.0557 AU
- Tisserand (Jupiter)
- 5.913
Orbit quality
Orbit very well determined (uncertainty code 2).
- Observations used
- 162
- Data arc
- 659 days
- First observed
- 2 July 2013
- Last observed
- 22 April 2015
- Residual RMS
- 0.46 ″
- Solution · Otto Matic
- 14 April 2021
Physical properties
- Rotation period
- 0.15 hours
Visual & observation
- Absolute magnitude (H)
- 22.09
Discovery & classification
- Discovered by
- Pan-STARRS 1
- Discovery date
- 2 July 2013
- Discovery site
- Haleakala
Also known as 2013 NX
Close approaches 102 on record
Top-down view of the ecliptic, Earth at the centre, for the 2033-08-05 16:28 UTC close approach of 433303. Catalogue miss distance 142.3 LD · 5.47 × 10⁷ km. The curve is the geocentric path from 2033-08-02 to 2033-08-08, 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 |
|---|---|---|---|---|
| 2033-08-05 16:28:00 | Earth | 0.3657 AU | 142.3 LD | 15.5 km/s |
| 2034-08-15 21:50:00 | Earth | 0.0878 AU | 34.2 LD | 7 km/s |
| 2035-06-30 03:42:00 | Earth | 0.1756 AU | 68.3 LD | 5 km/s |
| 2035-11-24 18:39:00 | Earth | 0.1534 AU | 59.7 LD | 5.2 km/s |
| 2036-04-29 02:24:00 | Earth | 0.2123 AU | 82.6 LD | 4.6 km/s |
| 2037-02-12 21:16:00 | Earth | 0.0718 AU | 27.9 LD | 6.6 km/s |
| 2038-03-05 21:54:00 | Earth | 0.3536 AU | 137.6 LD | 15.4 km/s |
| 2054-08-01 14:35:00 | Earth | 0.4724 AU | 183.8 LD | 18.7 km/s |
| 2055-08-13 21:51:00 | Earth | 0.1816 AU | 70.7 LD | 10 km/s |
| 2056-07-23 05:17:00 | Earth | 0.1264 AU | 49.2 LD | 4.5 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)
- orbital elements: JPL SBDB