2002 TY59 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.78 AU to 1.25 AU from the Sun; one orbit takes 375.1 days. Orbit from the JPL solution of 14 April 2021.
Where is it now
- Distance from Sun
- 1.203 AU
- True anomaly
- 210.82°
- Distance from Earth
- 1.403 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
- 11h 11m 21s
- Declination
- +10° 59′ 03″
- Constellation
- Leo
- Distance from Earth
- 1.4 AU
- Elongation from the Sun
- 57.37° — 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
- 1.018 AU
- Eccentricity
- 0.2329
- Inclination
- 6.61°
- Orbital period
- 375.1 days
- Perihelion
- 0.781 AU
- Aphelion
- 1.255 AU
- Longitude of ascending node
- 9.66°
- Argument of periapsis
- 259.44°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 0.7 LD
- 0.0018 AU
- Tisserand (Jupiter)
- 5.966
Orbit quality
Orbit poorly determined (uncertainty code 6).
- Observations used
- 81
- Data arc
- 26 days
- First observed
- 4 October 2002
- Last observed
- 30 October 2002
- Residual RMS
- 0.53 ″
- Solution · Otto Matic
- 14 April 2021
Visual & observation
- Absolute magnitude (H)
- 25.5
Discovery & classification
Listed by JPL impact monitoring; see the Sentry table for current probabilities.
Close approaches 55 on record
Top-down view of the ecliptic, Earth at the centre, for the 2031-02-24 10:16 UTC close approach of 2002 TY59. Catalogue miss distance 165.1 LD · 6.35 × 10⁷ km. The curve is the geocentric path from 2031-02-21 to 2031-02-27, 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 |
|---|---|---|---|---|
| 2027-04-03 07:55:00 | Venus | 0.0878 AU | 34.2 LD | 4.2 km/s |
| 2030-05-01 04:31:00 | Venus | 0.0998 AU | 38.8 LD | 5.4 km/s |
| 2031-02-24 10:16:00 | Earth | 0.4243 AU | 165.1 LD | 20.7 km/s |
| 2032-03-03 03:14:00 | Earth | 0.2557 AU | 99.5 LD | 15.6 km/s |
| 2033-03-11 05:05:00 | Earth | 0.089 AU | 34.6 LD | 10.5 km/s |
| 2033-05-29 22:54:00 | Venus | 0.1311 AU | 51.0 LD | 7.3 km/s |
| 2034-03-22 08:42:00 | Earth | 0.0921 AU | 35.8 LD | 6 km/s |
| 2036-01-06 22:28:00 | Earth | 0.2925 AU | 113.8 LD | 6.8 km/s |
| 2036-12-12 17:56:00 | Earth | 0.297 AU | 115.6 LD | 7 km/s |
| 2039-10-03 12:08:00 | Earth | 0.0291 AU | 11.3 LD | 9 km/s |
Next ten from today. 1 lunar distance = 384,400 km. Source: JPL close-approach data.
Sources
- visual properties: JPL SBDB (lookup)
- orbital elements: JPL SBDB