SpaceAtlas Space Object Data
NASA JPL SBDB · 2017 YC2

2017 YC2

2017 YC2 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.033 AU it takes 1.05 yr to circle the Sun.

Apollo Observations: 77
Orbital Period · P
1.05 yr
v(q)
32.2 km/s
v(Q)
26.7 km/s
Diameter · ≈
0.07 km
TJ
5.91
Eccentricity · e
0.0944

Orbit and dynamics

The path is an ellipse reaching 0.935 AU from the Sun at perihelion and 1.131 AU at aphelion, a radial span of 0.196 AU.

Applying Kepler's third law to a = 1.033 AU gives an orbital period of 1.05 yr, or about 383 days.

With e = 0.094, the orbit is close to circular.

The orbital plane is tilted 10.59° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 32.2 km/s at perihelion and falls to 26.7 km/s at aphelion.

Because q < 1 AU and Q > 1 AU, this orbit geometrically intersects the region of Earth's orbit.

Size and surface

No direct size measurement is available; from an absolute magnitude of H = 23.5 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.07 km.

Observation record and orbit quality

The current orbit solution is based on 77 observations and has a weighted RMS residual of 0.3866 arcseconds.

Condition code U = 1 means the orbit is very well determined, leaving only a small uncertainty in the future ephemeris.

About these computed values

Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.

Orbital Parameters

Semi-Major Axis
1.033 AU
Eccentricity
0.0944
Perihelion
0.935 AU
Aphelion
1.130515 AU
Inclination
10.59°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
106.56°

Orbit diagram

The Sun sits at the focus (orange). Earth's orbit is the grey circle at 1 AU. The red dot marks the object's position at the catalog epoch.

3D orbit (interactive)

Drag to rotate; scroll or pinch to zoom. The Sun is at the focus (orange), Earth's orbit is the grey ring at 1 AU, and the red dot marks the object's current position.

Close approaches

Predicted close approaches to Earth, from NASA's Center for Near-Earth Object Studies (CNEOS).

Date (UTC)Miss distanceVelocity
2036-Jun-06 00:57 0.494891 AU
74034570 km
18.10 km/s
2037-Jun-22 12:13 0.196486 AU
29393952 km
10.05 km/s
2038-Jul-21 17:53 0.103324 AU
15457007 km
5.62 km/s
2039-Jan-16 05:48 0.127101 AU
19014074 km
5.75 km/s
2039-Dec-24 02:22 0.179165 AU
26802743 km
9.35 km/s
2040-Dec-28 16:23 0.477661 AU
71457003 km
17.78 km/s
2058-Jun-21 10:36 0.217712 AU
32569233 km
10.59 km/s
2059-Jul-18 14:46 0.085672 AU
12816390 km
5.61 km/s
2060-Jan-19 11:47 0.138858 AU
20772929 km
5.75 km/s
2060-Dec-23 01:54 0.166706 AU
24938924 km
9.00 km/s
2061-Dec-28 09:16 0.467879 AU
69993741 km
17.48 km/s
2078-Jun-08 00:25 0.464413 AU
69475193 km
17.26 km/s
2079-Jun-25 05:12 0.159248 AU
23823110 km
9.16 km/s

Distances in astronomical units (AU) and kilometres. Source: NASA/JPL CNEOS Close Approach Data API.

Physical Parameters

Diameter
— km
Albedo
—
Density
— g/cm³
Rotation Period
— h
Absolute Magnitude
23.5

Orbit Quality

RMS
0.38661
Condition
1
Orbit ID
—
Data source: NASA JPL Small-Body Database · NASA CNEOS. Orbital periods, perihelion and aphelion speeds, and diameter estimates on this page are computed by SpaceAtlas from the JPL SBDB orbital elements. They are derived quantities, not values copied from the source catalogue.

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