39382 Opportunity

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| header1 = Discovery<ref name="jpldata" />

| header10 = {{#if:|Designations|Designations}}

| header20 = Orbital characteristics{{#ifeq:|yes| (barycentric)}}<ref name="jpldata" />

| data21 = | data22 = {{#if:4 September 2017 (JD 2458000.5) |Epoch 4 September 2017 (JD 2458000.5)}} | data23 = {{#if:0 | Uncertainty parameter 0}} | label24 = Observation arc | data24 = 56.34 yr (20,579 days) | label25 = Earliest precovery date | data25 = | label26 = {{#switch:{{{apsis}}} |apsis|gee|barion|center|centre|(apsis)=Apo{{{apsis}}} |Ap{{#if:|{{{apsis}}}|helion}}}} | data26 = 4.7586 AU | label27 = Peri{{#if:|{{{apsis}}}|helion}} | data27 = 3.1642 AU | label28 = Peri{{#if:|{{{apsis}}}|apsis}} | data28 = | label29 = {{#switch:{{{apsis}}} |helion|astron=Ap{{{apsis}}} |Apo{{#if:|{{{apsis}}}|apsis}}}} | data29 = | label30 = Periastron | data30 = | label31 = Apoastron | data31 = | label32 = Template:Longitem | data32 = 3.9614 AU | label33 = Template:Longitem | data33 = | label34 = Eccentricity | data34 = 0.2012 | label35 = Template:Longitem | data35 = 7.88 yr (2,880 days) | label36 = Template:Longitem | data36 = | label37 = Template:Longitem | data37 = | label38 = Template:Longitem | data38 = 56.818° | label39 = Template:Longitem | data39 = Template:Deg2DMS / day | label40 = Inclination | data40 = 2.9017° | label41 = Template:Longitem | data41 = | label42 = Template:Longitem | data42 = 129.01° | label43 = Template:Longitem | data43 = | label44 = Template:Longitem | data44 = | label45 = Template:Longitem | data45 = 297.44° | label46 = Template:Nowrap | data46 = | label47 = Satellite of | data47 = | label48 = Group | data48 = | label49 = {{#switch: |yes|true=Satellites |Known satellites}} | data49 = | label50 = Star | data50 = | label51 = Earth MOID | data51 = | label52 = Mercury MOID | data52 = | label53 = Venus MOID | data53 = | label54 = Mars MOID | data54 = | label55 = Jupiter MOID | data55 = 0.5914 AU | label56 = Saturn MOID | data56 = | label57 = Uranus MOID | data57 = | label58 = Neptune MOID | data58 = | label59 = T_Jupiter | data59 = 3.0210

| header60 = Proper orbital elements

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({{#expr:365.25*360/1 round 3}} d) }} | label66 = Template:Longitem | data66 = {{#if:|{{{perihelion_rate}}} arcsec Template:\yr }} | label67 = Template:Longitem | data67 = {{#if:|{{{node_rate}}} arcsec Template:\yr}}

| header70 = Template:Anchor{{#if:yes| Physical characteristics|Physical characteristics}}

| label71 = Dimensions | data71 = Template:Val km Template:Small<ref name="h" />
Template:Val km<ref name="Grav-2012" /> | label72 = Template:Longitem | data72 = | label73 = Template:Longitem | data73 = | label74 = Template:Longitem | data74 = | label75 = Template:Longitem | data75 = | label76 = Flattening | data76 = | label77 = Circumference | data77 = | label78 = Template:Longitem | data78 = | label79 = Volume | data79 = | label80 = Mass | data80 = | label81 = Template:Longitem | data81 = | label82 = Template:Longitem | data82 = | label83 = Template:Longitem | data83 = | label84 = Template:Longitem | data84 = | label85 = Template:Longitem | data85 = | label86 = Template:Longitem | data86 = | label87 = Template:Longitem | data87 = | label88 = Template:Longitem | data88 = | label89 = Template:Longitem | data89 = | label90 = Template:Longitem | data90 = | label91 = Template:Longitem | data91 = | label92 = Template:Longitem | data92 = | label93 = {{#if:yes |Template:Longitem |Albedo}} | data93 = Template:Val<ref name="Grav-2012" /> | label94 = Temperature | data94 =

| data100 = {{#if:|

Surface temp.	min	mean	max
{{{temp_name1}}}
{{{temp_name2}}}
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| header110 = Atmosphere

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39382 Opportunity (provisional designation Template:Mp) is a dark Hilidan asteroid from the outermost region of the asteroid belt, approximately 7.5 kilometers in diameter. Discovered during the Palomar–Leiden survey at Palomar Observatory in 1960, it was named for NASA's Opportunity Mars rover.<ref name="springer" />

Discovery

Opportunity was discovered on 24 September 1960, by Dutch astronomer couple Ingrid and Cornelis van Houten, as well as Dutch–American astronomer Tom Gehrels from photographic plates taken at the Palomar Observatory, California, United States.<ref name="MPC-Opportunity" />

Survey designation

The survey designation "P-L" stands for "Palomar–Leiden", named after Palomar Observatory and Leiden Observatory, which collaborated on the fruitful Palomar–Leiden survey in the 1960s. Gehrels used Palomar's Samuel Oschin telescope (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Ingrid and Cornelis van Houten at Leiden Observatory where astrometry was carried out. The trio are credited with the discovery of several thousand minor planets.<ref name="MPC-discoverers" />

Orbit and classification

Located in the outermost part of the main-belt, Opportunity is a member of the Hilda family, a large group of asteroids that are thought to have originated from the Kuiper belt. They orbit in a 3:2 orbital resonance with the gas giant Jupiter, meaning that for every 2 orbits Jupiter completes around the Sun, a Hildian asteroid will complete 3 orbits.<ref name="jpldata" />

Opportunity orbits the Sun at a distance of 3.2–4.8 AU once every 7 years and 11 months (2,880 days). Its orbit has an eccentricity of 0.20 and an inclination of 3° with respect to the ecliptic.<ref name="jpldata" /> The asteroid's orbit does not cross the path of any of the planets and therefore it will not be pulled out of orbit by Jupiter's gravitational field. As a result of this, it is likely that the asteroid will remain in a stable orbit for thousands of years.

The body's observation arc begins with its official discovery observation, as no precoveries were taken and no prior identifications were made.<ref name="MPC-Opportunity" />

Physical characteristics

Diameter and albedo

According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Opportunity measures 7.45 kilometers in diameter and its surface has an albedo of 0.061,<ref name="Grav-2012" /> which is typical for carbonaceous asteroids. A generic magnitude-to-diameter conversion, gives a diameter of 7 kilometers, for an absolute magnitude of 14.5 and an assumed albedo of 0.05.<ref name="h" />

Lightcurves

As of 2017, the asteroid's composition, shape and rotation period remain unknown.<ref name="jpldata" /><ref name="lcdb" />

Naming

This minor planet was named after a Mars Exploration Rover, Opportunity, following a proposal by the discoverer Ingrid van Houten-Groeneveld.<ref name="springer" /> The approved naming citation was published by the Minor Planet Center on 28 September 2004 (Template:Small).<ref name="MPC-Circulars-Archive" /> The minor planet 37452 Spirit was named for OpportunityTemplate:'s twin rover, Spirit.

References

Template:Reflist

External links

Asteroid Lightcurve Database (LCDB), query form (info Template:Webarchive)
Dictionary of Minor Planet Names, Google books
Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
Template:AstDys
Template:JPL small body

Template:Minor planets navigator {{#invoke:Navbox|navbox}} Template:NASAMER Template:Authority control

39382 Opportunity

Contents

Discovery

Survey designation

Orbit and classification

Physical characteristics

Diameter and albedo

Lightcurves

Naming

References

External links

Navigation menu

39382 Opportunity

Discovery

Survey designation

Orbit and classification

Physical characteristics

Diameter and albedo

Lightcurves

Naming

References

External links

Navigation menu

Search