37452 Spirit

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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 = 56.28 yr (20,555 days) | label25 = Earliest precovery date | data25 = | label26 = {{#switch:{{{apsis}}} |apsis|gee|barion|center|centre|(apsis)=Apo{{{apsis}}} |Ap{{#if:|{{{apsis}}}|helion}}}} | data26 = 4.8206 AU | label27 = Peri{{#if:|{{{apsis}}}|helion}} | data27 = 3.0794 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 = 3.9500 AU | label33 = Template:Longitem | data33 = | label34 = Eccentricity | data34 = 0.2204 | label35 = Template:Longitem | data35 = 7.85 yr (2,867 days) | label36 = Template:Longitem | data36 = | label37 = Template:Longitem | data37 = | label38 = Template:Longitem | data38 = 55.498° | label39 = Template:Longitem | data39 = Template:Deg2DMS / day | label40 = Inclination | data40 = 8.2643° | label41 = Template:Longitem | data41 = | label42 = Template:Longitem | data42 = 352.31° | label43 = Template:Longitem | data43 = | label44 = Template:Longitem | data44 = | label45 = Template:Longitem | data45 = 48.191° | 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 = 0.8488 AU | label56 = Saturn MOID | data56 = | label57 = Uranus MOID | data57 = | label58 = Neptune MOID | data58 = | label59 = T_Jupiter | data59 =

| header60 = Proper orbital elements

| label61 = Template:Longitem | data61 = {{#if: |{{{p_semimajor}}} AU}} | label62 = Template:Longitem | data62 = | label63 = Template:Longitem | data63 = | label64 = Template:Longitem | data64 = {{#if: |{{{p_mean_motion}}} deg Template:\yr}} | label65 = Template:Longitem | data65 = {{#if:|{{#expr:360/1 round 5}} yr
({{#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<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}}}
{{{temp_name3}}}
{{{temp_name4}}}

}}

| header110 = Atmosphere

| below = {{#if:||Template:Reflist }}

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37452 Spirit (provisional designation Template:Mp) is a dark Hildian asteroid from the outermost region of the asteroid belt, approximately 9 kilometers in diameter.

The asteroid was discovered on 24 September 1960, by Dutch astronomers Ingrid and Cornelis van Houten at Leiden, on photographic plates taken by Tom Gehrels at Palomar Observatory, California.<ref name="MPC-Spirit" /> It was named after NASA's Spirit Mars rover.<ref name="springer" />

Orbit and classification

Spirit is a member of the Hilda family of asteroids, which stay in a 3:2 orbital resonance with the gas-giant Jupiter, meaning that for every two orbits Jupiter completes, a Hildian asteroid will complete three orbits. As their orbit does not cross the path of any of the planets, it will therefore not be pulled out of orbit by Jupiter's gravitational field and likely remain in a stable orbit for thousands of years.

Spirit orbits the Sun in the outermost main-belt at a distance of 3.1–4.8 AU once every 7 years and 10 months (2,867 days). Its orbit has an eccentricity of 0.22 and an inclination of 8° with respect to the ecliptic.<ref name="jpldata" />

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-Spirit" />

Palomar–Leiden survey

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" />

Physical characteristics

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Spirit measures 8.9 kilometers in diameter and its surface has an albedo of 0.056, which is typical value for carbonaceous C-type asteroids.<ref name="Grav-2012" /> It has an absolute magnitude of 14.2.<ref name="jpldata" />

As of 2017, Spirit's rotation period and shape, as well as its spectral type remain unknown.<ref name="jpldata" /><ref name="lcdb" />

Naming

This minor planet was named by the discoverers for NASA's successful Mars rover Spirit which had been exploring the rocks and minerals in the Martian Gusev crater.<ref name="springer" /> The official naming citation was published by the Minor Planet Center on 28 September 2004 (Template:Small).<ref name="MPC-Circulars-Archive" /> 39382 Opportunity, also an asteroid of the Hilda family and discovered on the same day, was named after SpiritTemplate:'s twin rover, Opportunity.

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 (35001)-(40000) – Minor Planet Center
Template:AstDys
Template:JPL small body

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37452 Spirit

Contents

Orbit and classification

Palomar–Leiden survey

Physical characteristics

Naming

References

External links

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37452 Spirit

Orbit and classification

Palomar–Leiden survey

Physical characteristics

Naming

References

External links

Navigation menu

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