2016 YA1 is an asteroid in the Aten orbit class. Its orbit takes it from 0.83 AU to 1.14 AU from the Sun; one orbit takes 355 days. Orbit from the JPL solution of 1 March 2023.
Where is it now
- Distance from Sun
- 0.894 AU
- True anomaly
- 296.16°
- Distance from Earth
- 1.429 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
- 11h 59m 40s
- Declination
- -08° 29′ 40″
- Constellation
- Virgo
- Distance from Earth
- 1.43 AU
- Elongation from the Sun
- 38.19° — near the Sun — look low at dusk or dawn
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
- 0.981 AU
- Eccentricity
- 0.1582
- Inclination
- 16.61°
- Orbital period
- 355 days
- Perihelion
- 0.826 AU
- Aphelion
- 1.136 AU
- Longitude of ascending node
- 271.03°
- Argument of periapsis
- 292.87°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 12.1 LD
- 0.031 AU
- Tisserand (Jupiter)
- 6.125
Orbit quality
Orbit very well determined (uncertainty code 1).
- Observations used
- 100
- Data arc
- 367 days
- First observed
- 19 December 2016
- Last observed
- 21 December 2017
- Residual RMS
- 0.5 ″
- Solution · Otto Matic
- 1 March 2023
Visual & observation
- Absolute magnitude (H)
- 23.75
Discovery & classification
Close approaches 99 on record
Top-down view of the ecliptic, Earth at the centre, for the 2046-08-05 04:20 UTC close approach of 2016 YA1. Catalogue miss distance 149.6 LD · 5.75 × 10⁷ km. The curve is the geocentric path from 2046-08-02 to 2046-08-08, 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 |
|---|---|---|---|---|
| 2046-08-05 04:20:00 | Earth | 0.3845 AU | 149.6 LD | 17.5 km/s |
| 2047-07-24 04:48:00 | Earth | 0.2321 AU | 90.3 LD | 13.5 km/s |
| 2048-07-07 20:49:00 | Earth | 0.115 AU | 44.8 LD | 10.6 km/s |
| 2049-06-17 00:06:00 | Earth | 0.1453 AU | 56.5 LD | 9.5 km/s |
| 2049-11-13 13:42:00 | Earth | 0.3164 AU | 123.1 LD | 8.2 km/s |
| 2050-05-17 23:16:00 | Earth | 0.2521 AU | 98.1 LD | 9.4 km/s |
| 2050-12-16 19:58:00 | Earth | 0.1885 AU | 73.4 LD | 8.7 km/s |
| 2051-12-26 03:37:00 | Earth | 0.0405 AU | 15.8 LD | 9.4 km/s |
| 2052-12-24 09:59:00 | Earth | 0.1431 AU | 55.7 LD | 12.3 km/s |
| 2053-12-20 04:57:00 | Earth | 0.3104 AU | 120.8 LD | 16.5 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