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{| cellpadding="2" cellspacing="0" style="margin:25px 0 0 10px; border:3px solid lightsteelblue;width:250px; font-size:90%; font-family:'Arial','Helvetica'; float: right; clear: right;"Template in Orbiter"
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{| cellpadding="2" cellspacing="0" style="margin:25px 0 0 10px; border:3px solid lightsteelblue;width:250px; font-size:100%; font-family:'Arial','Helvetica'; float: right; clear: right;"Template in Orbiter"
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!bgcolor="lightsteelblue" colspan="2" align="center" |1620 Geographos
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!bgcolor="lightsteelblue" colspan="2" align="center" |1998 KY26
 
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|colspan="2" align="center"|[[Image:Geographos-AsteroidPackv1zip-Orbiter2003P2.jpg|240px]]
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|colspan="2" align="center"|[[Image:1998 KY26.png|240px]]
 
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|colspan="2" align="center"|'''1620 Geographos from ''AsteroidPack_v1.00.zip'' in Orbiter 2003P2'''
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|colspan="2" align="center"|'''1998 KY26 in Orbiter'''
 
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!bgcolor="lightsteelblue" colspan="2"|Designation
 
!bgcolor="lightsteelblue" colspan="2"|Designation
 
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|Name||align="right"|1620 Geographos
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|Name||align="right"|1998 KY26
 
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|width="30%"|Reference body||align="right" width="30%"|Sun
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|Reference body||align="right"|Sun
 
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|width="30%"|Number of satellites||align="right" width="30%"|0
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|Number of satellites||align="right" width="30%"|0
 
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!bgcolor="lightsteelblue" colspan="2"|Planetary mean orbits
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!bgcolor="lightsteelblue" colspan="2"|Planetary mean orbit
 
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|width="30%"|Epoch||align="right" width="50%"|2006
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|Epoch||align="right"|2006
 
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|width="30%"|Semimajor axis (a)||align="right" width="50%"| 186315638173.388 m<br>(1.24544311568598 AU)
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|Semimajor axis (a)||align="right" |1.23215341107285 AU <br> (1.84327526661×10<sup>11</sup> km)
 
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|width="30%"|Eccentricity (e)||align="right" width="30%"| 0.335415102834536
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|Eccentricity (e)||align="right"|0.201480667262534
 
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|width="30%"|Inclination (i)||align="right" width="30%"|0.232845464045468 radian<br>(13.3410623685705°)
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|Inclination (i)||align="right"|1.48112033563244°<br>(0.0258504264750296 radian)
 
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|width="30%"|Longitude of the ascending node (LAN, ☊)||align="right" width="30%"|5.88689533166951 radian<br>337.29425693993°
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|Longitude of the ascending node (LAN, ☊)||align="right"|84.4505018758647° <br> (1.47393931271294 radian)
 
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|width="30%"|Longitude of periapsis (ϖ)||align="right" width="30%"|10.7178284350264 radian<br>614.086334872317°
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|Longitude of periapsis (ϖ)||align="right"|293.651279001369° <br> (5.12518167126637 radian)
 
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|width="30%"|Mean longitude (L)||align="right" width="30%"|12.5060362286656 radian<br>716.543094340244°
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|Mean longitude (L)||align="right"|461.292039150675° <br> (8.05106489641787 radian)
 
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!bgcolor="lightsteelblue" colspan="2"|Rotational Elements
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!bgcolor="lightsteelblue" colspan="2"|Selected physical parameters
 
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|width="30%"|Sidereal Rotation Period||align="right" width="50%"|18802.8 seconds<br>(5.223 hours)
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|width="30%"|Mean radius||align="right"|15 km
 
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|width="30%"|Sidereal Rotation Offset||align="right" width="50%"|0
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|Mass||align="right"|1.35×10<sup>6</sup> kg
 
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|width="30%"|Obliquity||align="right" width="30%"|0.1 radians<br>0°
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!bgcolor="lightsteelblue" colspan="2"|Rotation elements
 
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!bgcolor="lightsteelblue" colspan="2"|Selected physical parameters
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|Sidereal rotation period||align="right"|642.24 hours (10m42.24s)
 
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|width="30%"|Mean radius||align="right" width="30%"| 3450 m
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|Sidereal rotation offset||align="right"|0
 
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|width="30%"|Mass||align="right" width="30%"|4×10<su>12</sup> kg
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|Obliquity||align="right"|0
 
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|width="30%"|Equatorial gravity||align="right" width="30%"|0.000022 m/s<sup>2</sup>
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|Equatorial gravity||align="right"|1998 KY26 0%<br>Sun 100%
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|width="30%"|Escape velocity||align="right" width="30%"| 0.0004 m/s
 
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|width="30%"|Gravity at surface||aligh="right" width="30%"|Geographos 1%<br>Sun 99%
 
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|width="30%"|Note||align="right" width="30%"|*Elements given are from Geographos.cfg file.
 
 
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|}
  
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{{Addon
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|1=[https://www.orbiter-forum.com/resources/asteroid-pack-1-00.2832/ Asteroid Pack 1.00]
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|2=[[List of add-ons by Nighthawke|Nighthawke]]
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|3=2004-11-21
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|4=All versions
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}}
  
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'''1620 Geographos''' is a Near-Earth object discovered in 1951 by [[w:Albert George Wilson|Albert George Wilson]] and [[w:Rudolph Minkowski]] at [[w:Palomar Observatory|Palomar]] and is named in honor of the [[w:National Geographic Society]].
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'''1998 KY26''' is a very small Near-Earth object disccovered by the Spacewatch survey at Kitt Peak on 2 June 1998.
  
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Geographos was to be visited by the [[w:Clementine (spacecraft)|Clementine mission]], but it failed to reach the body.
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1998 KY26 was released by Nighthawke in the Asteroid Pack 1.00 in November 2004. It is modeled in Orbiter as a 30 meter diameter object orbiting the Sun from 1 to 1.5 AU once every 1.37 years, with an eccentricity of 0.201 and an inclination of 1.48°. Rotation is a bit over 10 minutes.
  
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== Geographos in Orbiter ==
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The gravity of KY26 is so weak that OrbitMFD landed on the surface shows Sun 100% and KY26 0%. The pilot must be proactive to keep the ship on the surface.
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1620 Geographos was modeled in Orbiter as a somewhat potato shaped object about 5 km on the longest dimension. Because the visual surface of Geographos is well below the hard radius of the body, landing anywhere on the body's radius you end up well above the visual surface. Because even at the surface, geographos only provides 1% of the local gravity, the [[Sun]] providing the other 99%, a ship cannot orbit Geographos, it can only fly along with it in solar orbit, maneuvering in its vicinity. A ship also cannot land and remain  on the hard surface, it will immediately drift off the surface. When maneuvering in the vicinity, have SurfaceMFD up so that the pilot can monitor the ship's altitude above the surface.
 
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{| class="wikitable" style="text-align: center"
 
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|colspan="8"|<center>'''Orbiter versions and add-ons which include 1620 Geographos'''</center>
 
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!Add-on!!Source!!Version!!Author!!Type!!Release Date!!Compatibility!!Wiki article
 
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|[https://www.orbiter-forum.com/resources/asteroid-pack-1-00.2832/ Asteroid Pack 1.00]||O-F Resources||2004-11-21||Nighthawke||Scenery||21 November 2004||||
 
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|}
 
  
  
 
== Gallery ==
 
== Gallery ==
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<gallery widths="100" heights="100">
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<gallery widths="200" heights="200">
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Geographos-AsteroidPackv1zip-Orbiter2003P2.jpg|<center>1620 Geographos from ''AsteroidPack_v1.00.zip'' in Orbiter 2003P2</center>
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1998 KY26 orbit.jpg|<center>Orbits of the inner planets showing the orbit of 1998 KY26 in white. From JPL Horizons.</center>
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1620Geographos (Lightcurve Inversion).png|<center>3D model of 1620 Geographos based on light-curve model<br>from Wikimedia Commons</center>
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1998 KY26 DG landed South Pole.png|<center>DeltaGlider landed on 1998 KY26 at the South Pole.</center>
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Animation_of_1620_Geographos_orbit.gif|Animation of the orbit of Geographos as compared to [[Venus]], [[Earth]] and [[Mars]] from 2010 to 2020.<br>From Wikimedia Commons.
 
 
</gallery>
 
</gallery>
  
 
{{SolarSystem}}
 
{{SolarSystem}}
  
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[[Category:Articles|Geographos]]
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[[Category:Articles]]
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[[Category:Celestial bodies|Geographos]]
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[[Category:Celestial body add-ons]]
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[[Category:Solar System|Geographos]]
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[[Category:Solar System]]
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[[Category:Near-Earth objects|Geographos]]
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[[Category:Near-Earth objects]]

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