2026 TB115 is an asteroid in the Aten orbit class. Its orbit takes it from 0.54 AU to 1.15 AU from the Sun; one orbit takes 283.2 days. Orbit from the JPL solution of 19 October 2026.
Where is it now
- Distance from Sun
- 1.103 AU
- True anomaly
- 158.42°
- Distance from Earth
- 0.163 AU
- As of
- 28 October 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
- 22h 39m 39s
- Declination
- +18° 49′ 10″
- Constellation
- Pegasus
- Distance from Earth
- 0.16 AU
- Elongation from the Sun
- 128.76° — well clear of the Sun
Favours the northern hemisphere; low or below the horizon from far south.
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
- 0.844 AU
- Eccentricity
- 0.3578
- Inclination
- 18.63°
- Orbital period
- 283.2 days
- Perihelion
- 0.542 AU
- Aphelion
- 1.146 AU
- Longitude of ascending node
- 19.03°
- Argument of periapsis
- 212.9°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 14.8 LD
- 0.038 AU
- Tisserand (Jupiter)
- 6.878
Orbit quality
Orbit poorly determined (uncertainty code 7).
- Observations used
- 35
- Data arc
- 12 days
- First observed
- 8 October 2026
- Last observed
- 20 October 2026
- Residual RMS
- 0.36 ″
- Solution · Otto Matic
- 19 October 2026
Visual & observation
- Absolute magnitude (H)
- 25.84
Discovery & classification
Close approaches 38 on record
Top-down view of the ecliptic, Earth at the centre, for the 2033-10-16 00:32 UTC close approach of 2026 TB115. Catalogue miss distance 55.6 LD · 2.14 × 10⁷ km. The curve is the geocentric path from 2033-10-13 to 2033-10-19, 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 |
|---|---|---|---|---|
| 2026-10-08 15:30:00 | Earth | 0.0468 AU | 18.2 LD | 12.4 km/s |
| 2033-10-16 00:32:00 | Earth | 0.1429 AU | 55.6 LD | 11.1 km/s |
| 2041-03-05 05:33:00 | Venus | 0.1346 AU | 52.4 LD | 18.4 km/s |
| 2044-04-18 16:19:00 | Venus | 0.1308 AU | 50.9 LD | 15.2 km/s |
| 2050-10-08 08:50:00 | Earth | 0.1379 AU | 53.7 LD | 16.1 km/s |
| 2053-10-14 15:42:00 | Venus | 0.1461 AU | 56.9 LD | 14.6 km/s |
| 2057-10-07 17:39:00 | Earth | 0.0384 AU | 14.9 LD | 13 km/s |
| 2064-10-12 15:53:00 | Earth | 0.1128 AU | 43.9 LD | 11.3 km/s |
| 2081-10-09 05:21:00 | Earth | 0.185 AU | 72.0 LD | 17.5 km/s |
| 2088-10-07 05:46:00 | Earth | 0.0628 AU | 24.4 LD | 14 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