2017 FY101 is an asteroid in the Aten orbit class. Its orbit takes it from 0.64 AU to 1.33 AU from the Sun; one orbit takes 357.8 days. Orbit from the JPL solution of 28 July 2026.
Where is it now
- Distance from Sun
- 1.294 AU
- True anomaly
- 197.96°
- Distance from Earth
- 1.747 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 39m 00s
- Declination
- +03° 44′ 11″
- Constellation
- Virgo
- Distance from Earth
- 1.74 AU
- Elongation from the Sun
- 47.22° — 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
- 0.986 AU
- Eccentricity
- 0.3461
- Inclination
- 2.49°
- Orbital period
- 357.8 days
- Perihelion
- 0.645 AU
- Aphelion
- 1.328 AU
- Longitude of ascending node
- 5.96°
- Argument of periapsis
- 295.16°
- Epoch · J2000
- 2461200.5
- Orbit class · ATE
- Aten
- Earth MOID · 0.9 LD
- 0.0023 AU
- Tisserand (Jupiter)
- 6.092
Orbit quality
Orbit poorly determined (uncertainty code 6).
- Observations used
- 54
- Data arc
- 2 days
- First observed
- 27 March 2017
- Last observed
- 29 March 2017
- Residual RMS
- 0.31 ″
- Solution · Otto Matic
- 28 July 2026
Visual & observation
- Absolute magnitude (H)
- 27.2
Discovery & classification
Close approaches 65 on record
Top-down view of the ecliptic, Earth at the centre, for the 2053-11-16 22:39 UTC close approach of 2017 FY101. Catalogue miss distance 35.9 LD · 1.38 × 10⁷ km. The curve is the geocentric path from 2053-11-13 to 2053-11-19, 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 |
|---|---|---|---|---|
| 2027-02-25 19:38:00 | Venus | 0.1434 AU | 55.8 LD | 16.6 km/s |
| 2039-01-24 20:41:00 | Venus | 0.0528 AU | 20.5 LD | 11.7 km/s |
| 2043-12-01 07:09:00 | Venus | 0.0771 AU | 30.0 LD | 8.4 km/s |
| 2048-09-25 05:22:00 | Venus | 0.0513 AU | 20.0 LD | 8.4 km/s |
| 2053-08-12 09:03:00 | Venus | 0.1017 AU | 39.6 LD | 14.5 km/s |
| 2053-11-16 22:39:00 | Earth | 0.0924 AU | 35.9 LD | 13.6 km/s |
| 2054-11-13 09:07:00 | Earth | 0.046 AU | 17.9 LD | 10 km/s |
| 2055-11-18 04:13:00 | Earth | 0.1596 AU | 62.1 LD | 6.9 km/s |
| 2064-03-19 23:13:00 | Earth | 0.1844 AU | 71.8 LD | 7 km/s |
| 2065-03-30 23:38:00 | Earth | 0.0676 AU | 26.3 LD | 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