2026 TQ128 is an asteroid in the Aten orbit class. Its orbit takes it from 0.97 AU to 1 AU from the Sun; one orbit takes 354.7 days. Orbit from the JPL solution of 23 October 2026.
Where is it now
- Distance from Sun
- 0.994 AU
- True anomaly
- 211.49°
- Distance from Earth
- 0.027 AU
- As of
- 2 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 01m 37s
- Declination
- -15° 36′ 13″
- Constellation
- Capricornus
- Distance from Earth
- 0.03 AU
- Elongation from the Sun
- 92.49° — well clear of the Sun
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
- 0.981 AU
- Eccentricity
- 0.0155
- Inclination
- 0.14°
- Orbital period
- 354.7 days
- Perihelion
- 0.965 AU
- Aphelion
- 0.996 AU
- Longitude of ascending node
- 233.31°
- Argument of periapsis
- 313.98°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 0.3 LD
- 0.0008 AU
- Tisserand (Jupiter)
- 6.174
Orbit quality
Orbit reasonably well determined (uncertainty code 5).
- Observations used
- 25
- Data arc
- 8 days
- First observed
- 8 October 2026
- Last observed
- 16 October 2026
- Residual RMS
- 0.44 ″
- Solution · Otto Matic
- 23 October 2026
Visual & observation
- Absolute magnitude (H)
- 31.7
Discovery & classification
Listed by JPL impact monitoring; see the Sentry table for current probabilities.
Close approaches 12 on record
Top-down view of the ecliptic, Earth at the centre, for the 2037-08-15 03:03 UTC close approach of 2026 TQ128. Catalogue miss distance 54.4 LD · 2.09 × 10⁷ km. The curve is the geocentric path from 2037-08-12 to 2037-08-18, 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 |
|---|---|---|---|---|
| 2037-08-15 03:03:00 | Earth | 0.1399 AU | 54.4 LD | 4.9 km/s |
| 2038-01-28 04:56:00 | Earth | 0.099 AU | 38.5 LD | 1.9 km/s |
| 2049-04-23 19:50:00 | Earth | 0.1112 AU | 43.3 LD | 2.2 km/s |
| 2049-10-25 17:09:00 | Earth | 0.198 AU | 77.1 LD | 6.5 km/s |
| 2060-09-13 06:19:00 | Moon | 0.0013 AU | 0.5 LD | 1 km/s |
| 2060-09-13 14:38:00 | Earth | 0.0029 AU | 1.1 LD | 1.5 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