2009 UY19 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.99 AU to 1.05 AU from the Sun; one orbit takes 378.2 days; it is about 0.11 km across. Orbit from the JPL solution of 1 March 2023.
Where is it now
- Distance from Sun
- 1.01 AU
- True anomaly
- 65.63°
- Distance from Earth
- 1.963 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
- 13h 55m 19s
- Declination
- -10° 37′ 50″
- Constellation
- Virgo
- Distance from Earth
- 1.96 AU
- Elongation from the Sun
- 11.41° — 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.
Your location stays in your browser and is sent only for this calculation. Using a what3words address is optional; if you do, the three words go to what3words to be converted and we don't record them. Set a location first, then you can save an email alert for this object. See our privacy policy.
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
- 1.023 AU
- Eccentricity
- 0.0308
- Inclination
- 9.05°
- Orbital period
- 378.2 days
- Perihelion
- 0.992 AU
- Aphelion
- 1.055 AU
- Longitude of ascending node
- 33°
- Argument of periapsis
- 100.02°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 4.6 LD
- 0.0117 AU
- Tisserand (Jupiter)
- 5.96
Orbit quality
Orbit very well determined (uncertainty code 2).
- Observations used
- 192
- Data arc
- 186 days
- First observed
- 25 October 2009
- Last observed
- 29 April 2010
- Residual RMS
- 0.4 ″
- Solution · Otto Matic
- 1 March 2023
Physical properties
- Mean radius
- 0.05 km
Visual & observation
- Geometric albedo
- 0.063
- Absolute magnitude (H)
- 23.43
Discovery & classification
Close approaches 57 on record
Top-down view of the ecliptic, Earth at the centre, for the 2036-11-19 00:14 UTC close approach of 2009 UY19. Catalogue miss distance 192.1 LD · 7.38 × 10⁷ km. The curve is the geocentric path from 2036-11-16 to 2036-11-22, 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 |
|---|---|---|---|---|
| 2036-11-19 00:14:00 | Earth | 0.4935 AU | 192.1 LD | 15.4 km/s |
| 2037-11-13 15:52:00 | Earth | 0.2803 AU | 109.1 LD | 9.5 km/s |
| 2038-04-28 20:07:00 | Earth | 0.2422 AU | 94.2 LD | 7.9 km/s |
| 2038-11-02 10:19:00 | Earth | 0.076 AU | 29.6 LD | 5.3 km/s |
| 2039-04-23 01:17:00 | Earth | 0.034 AU | 13.2 LD | 4.7 km/s |
| 2039-10-16 09:12:00 | Earth | 0.1192 AU | 46.4 LD | 5.4 km/s |
| 2040-04-24 21:34:00 | Earth | 0.1558 AU | 60.6 LD | 6.8 km/s |
| 2041-04-30 23:30:00 | Earth | 0.3511 AU | 136.6 LD | 11.7 km/s |
| 2069-11-10 18:40:00 | Earth | 0.3156 AU | 122.8 LD | 10.6 km/s |
| 2070-05-01 04:40:00 | Earth | 0.2833 AU | 110.3 LD | 8.9 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)
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB