2025 TF1 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.49 AU to 1.55 AU from the Sun; one orbit takes 376.8 days. Orbit from the JPL solution of 5 October 2025.
Where is it now
- Distance from Sun
- 0.88 AU
- True anomaly
- 252.89°
- Distance from Earth
- 0.274 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
- 18h 39m 44s
- Declination
- -37° 04′ 13″
- Constellation
- Corona Australis
- Distance from Earth
- 0.28 AU
- Elongation from the Sun
- 57.4° — near the Sun — look low at dusk or dawn
Favours the southern hemisphere; low or below the horizon from far north.
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
- 1.021 AU
- Eccentricity
- 0.5195
- Inclination
- 18.5°
- Orbital period
- 376.8 days
- Perihelion
- 0.491 AU
- Aphelion
- 1.551 AU
- Longitude of ascending node
- 193.9°
- Argument of periapsis
- 300.35°
- Epoch · J2000
- 2460951.5
- Orbit class · APO
- Apollo
- Earth MOID · 2.1 LD
- 0.0053 AU
- Tisserand (Jupiter)
- 5.815
Orbit quality
Orbit very uncertain — the object may be effectively lost (uncertainty code 8).
- Observations used
- 19
- Data arc
- 3 days
- First observed
- 2 October 2025
- Last observed
- 5 October 2025
- Residual RMS
- 0.3 ″
- Solution · Otto Matic
- 5 October 2025
Visual & observation
- Absolute magnitude (H)
- 26.19
Discovery & classification
Close approaches 6 on record
Top-down view of the ecliptic, Earth at the centre, for the 2177-10-08 22:46 UTC close approach of 2025 TF1. Catalogue miss distance 9.67 LD · 3.72 × 10⁶ km. The curve is the geocentric path from 2177-10-05 to 2177-10-11, 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 south 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 |
|---|---|---|---|---|
| 2124-01-10 15:47:00 | Venus | 0.1114 AU | 43.3 LD | 23.5 km/s |
| 2169-07-22 17:19:00 | Venus | 0.0975 AU | 37.9 LD | 20.3 km/s |
| 2177-10-08 22:46:00 | Earth | 0.0249 AU | 9.7 LD | 18.6 km/s |
| 2178-10-12 19:44:00 | Earth | 0.1769 AU | 68.8 LD | 13.9 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