2024 TT5 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.86 AU to 1.17 AU from the Sun; one orbit takes 375.2 days. Orbit from the JPL solution of 22 October 2024.
Where is it now
- Distance from Sun
- 1.11 AU
- True anomaly
- 226.99°
- Distance from Earth
- 0.411 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
- 21h 12m 45s
- Declination
- -11° 11′ 39″
- Constellation
- Aquarius
- Distance from Earth
- 0.41 AU
- Elongation from the Sun
- 95.35° — well clear of the Sun
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
- 0.1531
- Inclination
- 28.55°
- Orbital period
- 375.2 days
- Perihelion
- 0.862 AU
- Aphelion
- 1.174 AU
- Longitude of ascending node
- 16.92°
- Argument of periapsis
- 136.28°
- Epoch · J2000
- 2460591.5
- Orbit class · APO
- Apollo
- Earth MOID · 40.9 LD
- 0.1052 AU
- Tisserand (Jupiter)
- 5.879
Orbit quality
Orbit very uncertain — the object may be effectively lost (uncertainty code 8).
- Observations used
- 27
- Data arc
- 15 days
- First observed
- 6 October 2024
- Last observed
- 21 October 2024
- Residual RMS
- 0.44 ″
- Solution · Otto Matic
- 22 October 2024
Visual & observation
- Absolute magnitude (H)
- 24.64
Discovery & classification
Close approaches 12 on record
Top-down view of the ecliptic, Earth at the centre, for the 2027-04-12 09:36 UTC close approach of 2024 TT5. Catalogue miss distance 43.7 LD · 1.68 × 10⁷ km. The curve is the geocentric path from 2027-04-09 to 2027-04-15, 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 |
|---|---|---|---|---|
| 2027-04-12 09:36:00 | Earth | 0.1124 AU | 43.7 LD | 16.3 km/s |
| 2027-09-27 05:19:00 | Earth | 0.43 AU | 167.4 LD | 15.6 km/s |
| 2028-04-23 17:02:00 | Earth | 0.2281 AU | 88.8 LD | 17.9 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