2015 TC25 is an asteroid in the Apollo orbit class. Its orbit takes it from 0.91 AU to 1.15 AU from the Sun; one orbit takes 380.9 days. Orbit from the JPL solution of 20 December 2022.
Where is it now
- Distance from Sun
- 1.134 AU
- True anomaly
- 155.38°
- Distance from Earth
- 2.036 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
- 15h 49m 10s
- Declination
- -21° 49′ 25″
- Constellation
- Scorpius
- Distance from Earth
- 2.04 AU
- Elongation from the Sun
- 17.84° — too close to the Sun to observe
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.
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
- 1.028 AU
- Eccentricity
- 0.1163
- Inclination
- 3.74°
- Orbital period
- 380.9 days
- Perihelion
- 0.909 AU
- Aphelion
- 1.148 AU
- Longitude of ascending node
- 18.85°
- Argument of periapsis
- 80.58°
- Epoch · J2000
- 2461200.5
- Orbit class · APO
- Apollo
- Earth MOID · 0.7 LD
- 0.0017 AU
- Tisserand (Jupiter)
- 5.941
Orbit quality
Orbit very well determined (uncertainty code 2).
- Observations used
- 48
- Data arc
- 562 days
- First observed
- 11 October 2015
- Last observed
- 25 April 2017
- Residual RMS
- 0.41 ″
- Solution · Otto Matic
- 20 December 2022
Physical properties
- Rotation period
- 0.04 hours
Visual & observation
- Absolute magnitude (H)
- 29.34
Discovery & classification
Close approaches 46 on record
Top-down view of the ecliptic, Earth at the centre, for the 2038-09-22 07:24 UTC close approach of 2015 TC25. Catalogue miss distance 133.2 LD · 5.12 × 10⁷ km. The curve is the geocentric path from 2038-09-19 to 2038-09-25, 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 |
|---|---|---|---|---|
| 2038-09-22 07:24:00 | Earth | 0.3422 AU | 133.2 LD | 13.2 km/s |
| 2039-10-06 11:21:00 | Earth | 0.0757 AU | 29.5 LD | 5.5 km/s |
| 2040-07-31 23:48:00 | Earth | 0.137 AU | 53.3 LD | 2.9 km/s |
| 2041-01-21 06:45:00 | Earth | 0.0941 AU | 36.6 LD | 2.6 km/s |
| 2041-04-29 13:11:00 | Earth | 0.0987 AU | 38.4 LD | 2.6 km/s |
| 2042-04-01 05:21:00 | Earth | 0.1468 AU | 57.1 LD | 7.5 km/s |
| 2043-04-13 08:57:00 | Earth | 0.4023 AU | 156.6 LD | 15 km/s |
| 2063-09-19 07:22:00 | Earth | 0.3977 AU | 154.8 LD | 14.9 km/s |
| 2064-10-01 12:18:00 | Earth | 0.1421 AU | 55.3 LD | 7.4 km/s |
| 2065-09-02 12:04:00 | Earth | 0.1078 AU | 41.9 LD | 2.4 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