|
|
| Line 1: |
Line 1: |
| {{Infobox planet
| | Petroleum Engineer Odis from Lively, has hobbies and interests for example bmx, [http://forum.copy9.com/member.php?u=36038-Barb23Tkmiokow Largest property Developers in singapore] developers in singapore and writing. Plans to quit work and take the family to numerous noteworthy heritage listed locales on the planet like Central Sikhote-Alin. |
| |width=22em
| |
| |name=(66063) 1998 RO<sub>1</sub>
| |
| |bgcolour=#FFFFC0
| |
| |image=[[File:Orbit of (66063) 1998 RO1.gif|thumb|center|300 px|Orbit of (66063) 1998 RO<sub>1</sub>]]
| |
| |discovery_ref=<ref name="JPL SBDB">{{cite sbdb|title=66063 (1998) RO1|id=2066063}}</ref><ref name="Johnston">{{cite web | url=http://www.johnstonsarchive.net/astro/astmoons/am-66063.html | title=(66063) 1998 RO1 | work=Johnston Archive | date=March 29, 2009 | accessdate=19 December 2013 | author=Johnston, Robert}}</ref>
| |
| |discoverer=[[LINEAR]]
| |
| |discovered=September 14, 1998
| |
| |discovery_site=''[[Socorro]]''
| |
| |alt_names=1999 SN<sub>5</sub>
| |
| |orbit_ref=<ref name="JPL SBDB" />
| |
| |epoch=November 4, 2013
| |
| |aphelion={{convert|1.7045|AU|Gm|abbr=on}}
| |
| |perihelion={{convert|0.2774|AU|Gm|abbr=on}}
| |
| |semimajor={{convert|0.9909|AU|Gm|abbr=on}}
| |
| |eccentricity=0.7201
| |
| |period=360.29 days
| |
| |avg_speed=
| |
| |inclination=22.676°
| |
| |asc_node=351.88°
| |
| |mean_anomaly=30.141°
| |
| |arg_peri=151.11°
| |
| |p_orbit_ref=<ref name="JPL SBDB" />
| |
| |p_mean_motion=0.9992
| |
| |satellites=1
| |
| |dimensions={{convert|712|m|ft|abbr=on}}<ref name="Abs Mag">Used absolute magnitude and albedo values for {{cite web | url=http://www.physics.sfasu.edu/astro/asteroids/sizemagnitude.html | title=Conversion of Absolute Magnitude to Diameter for Minor Planets | publisher=Stephen F. Austin State University | accessdate=23 December 2013 | author=Bruton, Dan}}</ref>
| |
| |mass=5.976×10<sup>9</sup> [[Metric ton|mt]]<ref name="PHL"> Used mean density/albedo value for {{cite web | url=http://phl.upr.edu/projects/habitable-exoplanets-catalog/calculators | title=Exoplanets Calculator | publisher=University of Puerto Rico | work=Planetary Habitability Laboratory | accessdate=20 December 2013}}</ref>
| |
| |density=2.8±1.3 g/cm³<ref name="Lightcurves">{{cite journal | url=http://www.sciencedirect.com/science/article/pii/S0019103508004193 | title=Modeling of Lightcurves of Binary Asteroids | journal=The Icarus Journal |date=April 2009| volume=200 | issue=2 | pages=531-547 | doi=10.1016/j.icarus.2008.12.001}}</ref>
| |
| |surface_grav=0.0624 mm/s<sup>2</sup><ref name="PHL" />
| |
| |escape_velocity=0.0999 mm/s<ref name="PHL" />
| |
| |sidereal_day=2.4924 hours<ref name="JPL SBDB" />
| |
| |axial_tilt=
| |
| |pole_ecliptic_lat=
| |
| |pole_ecliptic_lon=
| |
| |albedo=0.2<ref name="Johnston" />
| |
| |single_temperature=202-500 K (-71-227°C)<ref name="PHL" />
| |
| |spectral_type=
| |
| |abs_magnitude=18.1<ref name="JPL SBDB" />
| |
| }}
| |
| | |
| '''(66063) 1998 RO<sub>1</sub>''' is an [[Aten asteroid]] with a very eccentric orbit that was discovered September 14, 1998 by the [[LINEAR]] program.<ref name="JPL SBDB" /><ref name="Johnston" /> It is known to have a [[Minor-planet moon|moon]], S/2001 (66063) 1.
| |
| | |
| ==Interaction with Earth==
| |
| 1998 RO<sub>1</sub>'s orbit is very eccentric, with an aphelion beyond the orbit of [[Mars]] and a perihelion inside the orbit of [[Mercury]].<ref name="Johnston" /> However, with its orbital period of 360.29 days (0.99 years), 1998 RO<sub>1</sub> is in a [[Quasi-satellite|1:1 resonance]] with [[Earth]]. The asteroid does make close approaches to Earth,<ref name="JPL SBDB" /> but this orbital resonance means that it will not pose a real threat to Earth in millions, or perhaps [[Timeline of the far future|billions of years]]. On the other hand, 1998 RO<sub>1</sub> makes closer approaches to the other inner planets, especially Mars. Its closest approach to a planet, past or future, was to Mars, as it passed {{convert|0.008985|AU|km|abbr=on}} on March 19, 1964.<ref name="JPL SBDB" />
| |
| | |
| ==Moon==
| |
| [[File:Orbit2.gif|thumb|left|100 px|S/2001 (66063) 1 orbits 1998 RO<sub>1</sub> in a manner very similar to this. The red cross is the center of mass.]]
| |
| 1998 RO<sub>1</sub> has one moon, S/2001 (66063) 1.<ref name="Johnston" /> This moon was discovered from lightcurve observations going from September 13-28, 2013, and was confirmed by radar observations from the [[Arecibo Observatory]] one year later.<ref name="Johnston" /><ref name="Echo">{{cite web | url=http://echo.jpl.nasa.gov/~lance/binary.neas.html | title=BINARY AND TERNARY NEAR-EARTH ASTEROIDS DETECTED BY RADAR | publisher=Jet Propulsion Laboratory | date=November 28, 2013 | accessdate=30 December 2013 | author=Benner, Lance}}</ref> It is in a very close orbit to 1998 RO<sub>1</sub>, with a semi-major axis of {{convert|800|m|ft|abbr=on}} and an eccentricity of 0.06,<ref name="Johnston" /><ref name="Lightcurves" /> giving it a periapsis of {{convert|752|m|ft|abbr=on}} and an apoapsis of {{convert|848|m|ft|abbr=on}}. S/2001 (66063) 1 takes 14.54 hours to complete one orbit around 1998 RO<sub>1</sub>.<ref name="Lightcurves" /> From the surface of 1998 RO<sub>1</sub>, S/2001 (66063) 1 would have an apparent diameter of roughly 41°.<ref group="lower-alpha">Calculated by solving <math> \scriptstyle{\mathrm{tan}\left(\frac{\theta}{2}\right) = \frac{\mathrm{radius~of~moon}}{\mathrm{distance~from~surface~of~asteroid~to~center~of~moon}}}</math>.</ref> For comparison, the [[Sun]] appears to be 0.5° from [[Earth]].
| |
| | |
| {{clear|left}}
| |
| | |
| ==Notes==
| |
| {{notelist}}
| |
| | |
| ==References==
| |
| {{reflist}}
| |
| | |
| {{Minor planets navigator|(66062) 1998 RG1|(66064) 1998 RW4}}
| |
| | |
| {{DEFAULTSORT:1998 RO1}}
| |
| [[Category:Astronomical objects discovered in 1998]]
| |
| [[Category:Near-Earth asteroids]]
| |
| [[Category:Binary asteroids]]
| |
| [[Category:Aten asteroids]]
| |
| [[Category:Asteroids]]
| |