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⚫ {{Use dmy dates|date=February 2018}}
{{DISPLAYTITLE:{{mp|612600|2003 SM|84}}}} {{DISPLAYTITLE:{{mp|612600|2003 SM|84}}}}
{{Infobox planet {{Infobox planet
| minorplanet = yes | minorplanet = yes
| name = {{mp|2003 SM|84}} | name = {{mp|(612600) 2003 SM|84}}
| background = #FFC2E0 | background = #FFC2E0
| image = | image =
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'''{{mp|2003 SM|84}}''' is a sub-kilometer ], classified as ] of the ] orbiting between ] and ]. It was first observed by the ] (LINEAR) at the ] on 20 September 2003.<ref name="MPC-object" /> '''{{mp|(612600) 2003 SM|84}}''' is a sub-kilometer ], classified as ] of the ] orbiting between ] and ]. It was first observed by the ] (LINEAR) at the ] on 20 September 2003.<ref name="MPC-object" /> As of 2020, this ] has neither been nor ].<ref name="MPC-object" />


⚫ {{mp|2003 SM|84}} is an ] – a subgroup of near-Earth asteroids that approach the orbit of Earth from beyond, but do not cross it. It orbits the Sun at a distance of 1.0–1.2&nbsp;] once every 14 months (436 days; ] of 1.13&nbsp;AU). Its orbit has an ] of 0.08 and an ] of 3] with respect to the ].<ref name="jpldata" /> The body's ] begins with its first observation by LINEAR in 2003.<ref name="MPC-object" />
{{mp|2003 SM|84}} was being considered by the ] as a candidate target for the '']'' mission to study the effects of impacting a spacecraft into an asteroid.<ref name="universetoday" />


⚫ The object's ] remains unknown.<ref name="jpldata" /> Using a magnitude-to-diameter conversion, {{mp|2003 SM|84}} measures 86 and 160 meters in diameter, based on an ] of 22.7 and an assumed ] of 0.20 (]) and 0.057 (]), respectively.<ref name="h" /> {{mp|2003 SM|84}} was being considered by the ] as a candidate target for the '']'' mission to study the effects of impacting a spacecraft into an asteroid.<ref name="universetoday" />
== Orbit and classification ==

⚫ {{mp|2003 SM|84}} is an ] – a subgroup of near-Earth asteroids that approach the orbit of Earth from beyond, but do not cross it. It orbits the Sun at a distance of 1.0–1.2&nbsp;] once every 14 months (436 days; ] of 1.13&nbsp;AU). Its orbit has an ] of 0.08 and an ] of 3] with respect to the ].<ref name="jpldata" />

The body's ] begins with its first observation by LINEAR in 2003.<ref name="MPC-object" />

== Numbering and naming ==

As of 2020, this ] has neither been numbered nor ].<ref name="MPC-object" />

== Physical characteristics ==

The object's ] remains unknown.<ref name="jpldata" />

=== Diameter and albedo ===

⚫ Using a magnitude-to-diameter conversion, {{mp|2003 SM|84}} measures 86 and 160 meters in diameter, based on an ] of 22.7 and an assumed ] of 0.20 (]) and 0.057 (]), respectively.<ref name="h" />


== References == == References ==
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* {{JPL Small Body}} * {{JPL Small Body}}


⚫ {{Minor planets navigator | |number=612600 |PageName={{mp|(612600) 2003 SM|84}} | }}
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{{Small Solar System bodies}} {{Small Solar System bodies}}
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{{DEFAULTSORT:2003 SM84}} {{DEFAULTSORT:2003 SM84}}
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Latest revision as of 21:12, 4 November 2024

(612600) 2003 SM84
Discovery
Discovered byLINEAR
Discovery siteLincoln Laboratory ETS
Discovery date20 September 2003
(first observed only)
Designations
MPC designation2003 SM84
Minor planet categoryNEO · Amor
Orbital characteristics
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 1
Observation arc12.21 yr (4,459 d)
Aphelion1.2176 AU
Perihelion1.0331 AU
Semi-major axis1.1254 AU
Eccentricity0.0819
Orbital period (sidereal)1.19 yr (436 d)
Mean anomaly97.681°
Mean motion0° 49 32.16 / day
Inclination2.7956°
Longitude of ascending node186.68°
Argument of perihelion87.374°
Earth MOID0.0516 AU
(20.1022 LD)
Physical characteristics
Mean diameter86 m (est. at 0.20)
160 m (est. at 0.057)
Absolute magnitude (H)22.7

(612600) 2003 SM84 is a sub-kilometer asteroid, classified as near-Earth object of the Amor group orbiting between Earth and Mars. It was first observed by the Lincoln Near-Earth Asteroid Research (LINEAR) at the Lincoln Laboratory ETS on 20 September 2003. As of 2020, this minor planet has neither been nor named.

2003 SM84 is an Amor asteroid – a subgroup of near-Earth asteroids that approach the orbit of Earth from beyond, but do not cross it. It orbits the Sun at a distance of 1.0–1.2 AU once every 14 months (436 days; semi-major axis of 1.13 AU). Its orbit has an eccentricity of 0.08 and an inclination of 3° with respect to the ecliptic. The body's observation arc begins with its first observation by LINEAR in 2003.

The object's spectral type remains unknown. Using a magnitude-to-diameter conversion, 2003 SM84 measures 86 and 160 meters in diameter, based on an absolute magnitude of 22.7 and an assumed albedo of 0.20 (S-type) and 0.057 (C-type), respectively. 2003 SM84 was being considered by the European Space Agency as a candidate target for the Don Quijote mission to study the effects of impacting a spacecraft into an asteroid.

References

  1. ^ "2003 SM84". Minor Planet Center. Retrieved 20 December 2019.
  2. ^ "JPL Small-Body Database Browser: (2003 SM84)" (2015-12-05 last obs.). Jet Propulsion Laboratory. Archived from the original on 2 September 2020. Retrieved 20 December 2019.
  3. ^ "Asteroid Size Estimator". CNEOS NASA/JPL. Retrieved 20 December 2019.
  4. Nerlich, Steve (13 August 2011). "Astronomy Without A Telescope – Impact Mitigation". www.universetoday. Retrieved 20 December 2019.

External links

Minor planets navigator
Small Solar System bodies
Minor planets
Asteroid
Distant minor planet
Comets
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