SpaceAtlas Space Object Data
NASA JPL SBDB · 2022 SL49

2022 SL49

2022 SL49 belongs to the Apollo group of near-Earth asteroids, whose orbits cross the path of Earth; with a semi-major axis of 1.042 AU it takes 1.06 yr to circle the Sun.

Apollo Observations: 57
Orbital Period · P
1.06 yr
v(q)
44 km/s
v(Q)
19.4 km/s
Diameter · ≈
0.1 km
TJ
5.79
Eccentricity · e
0.3889

Orbit and dynamics

Between its closest point (0.637 AU) and its farthest (1.447 AU), the heliocentric distance changes by 0.81 AU over every revolution.

One full revolution takes 1.06 yr (389 days), computed from the semi-major axis of 1.042 AU.

An eccentricity of 0.389 makes the orbit moderately elongated.

The orbital plane is tilted 16.41° relative to the ecliptic.

By the vis-viva equation its orbital speed rises to 44 km/s at perihelion and falls to 19.4 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 = 22.86 and an assumed geometric albedo of 0.14, the diameter works out to roughly 0.1 km.

Observation record and orbit quality

Astrometry from 57 individual observations underpins this orbit; the fit leaves an RMS residual of 0.4887 arcseconds.

Condition code U = 2 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
1.042 AU
Eccentricity
0.3889
Perihelion
0.637 AU
Aphelion
1.447234 AU
Inclination
16.41°
Orbital Period
— yr
Epoch
2461200.5
Mean Anomaly
76.41°

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
2027-Jun-06 11:24 0.313991 AU
46972374 km
19.47 km/s
2038-Oct-19 00:46 0.272277 AU
40731999 km
20.63 km/s
2039-Oct-24 23:10 0.152394 AU
22797854 km
11.36 km/s
2040-Sep-24 03:31 0.402368 AU
60193461 km
11.13 km/s
2041-Jan-30 16:11 0.400698 AU
59943579 km
14.37 km/s
2042-Mar-22 13:40 0.331321 AU
49564976 km
15.00 km/s
2042-Jul-15 21:09 0.485888 AU
72687868 km
8.90 km/s
2043-May-14 04:17 0.209368 AU
31320964 km
13.68 km/s
2044-Jun-12 13:19 0.398012 AU
59541714 km
22.38 km/s
2055-Oct-22 20:24 0.179281 AU
26820019 km
17.74 km/s
2056-Oct-18 08:19 0.229787 AU
34375684 km
10.63 km/s
2057-Sep-16 09:29 0.442139 AU
66143090 km
11.29 km/s
2058-Feb-13 11:17 0.394827 AU
59065325 km
15.36 km/s
2059-Apr-04 21:41 0.298125 AU
44598862 km
14.25 km/s
2060-May-23 05:49 0.219461 AU
32830895 km
15.20 km/s
2061-Jun-17 21:21 0.471721 AU
70568461 km
24.82 km/s
2072-Oct-22 14:50 0.163152 AU
24407247 km
17.20 km/s
2073-Oct-17 19:20 0.236501 AU
35380104 km
10.61 km/s
2074-Sep-16 11:37 0.441305 AU
66018288 km
11.30 km/s
2075-Feb-13 16:11 0.395025 AU
59094965 km
15.33 km/s
2076-Apr-02 18:06 0.302221 AU
45211626 km
14.34 km/s
2077-May-21 14:52 0.214839 AU
32139436 km
14.79 km/s
2078-Jun-16 19:09 0.449513 AU
67246227 km
24.08 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
22.86

Orbit Quality

RMS
0.48872
Condition
2
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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