(181902) 1999 RD215

(181902) (1999) RD₂₁₅
Discovery
Discovered by	C. A. Trujillo, J. X. Luu, and D. C. Jewitt at Mauna Kea (568).^[1]
Discovery date	6 September 1999
Designations
MPC designation	(181902) 1999 RD₂₁₅
Alternative names	none
Minor planet category	Scattered disc object Transneptunian object
Orbital characteristics^[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 2
Observation arc	2933 days (8.03 yr)
Aphelion	204.66 AU (30.617 Tm)
Perihelion	37.601 AU (5.6250 Tm)
Semi-major axis	121.13 AU (18.121 Tm)
Eccentricity	0.68959
Orbital period	1333.21 yr (486953.3 d)
Mean anomaly	7.3151°
Mean motion	0° 0^m 2.661^s / day
Inclination	25.9736°
Longitude of ascending node	210.3167°
Argument of perihelion	138.10°
Earth MOID	36.6382 AU (5.48100 Tm)
Jupiter MOID	32.9028 AU (4.92219 Tm)
Physical characteristics
Dimensions	~175 km^[2]
Geometric albedo	0.02-0.1 (assumed)
Absolute magnitude (H)	7.4

(181902) 1999 RD215 is a scattered disc object with a diameter of about 175 kilometers (110 miles.) It was discovered on September 6, 1999, by Chad Trujillo, Jane Luu, and David Jewitt. The orbit of the TNO regularly takes it from the center of the Kuiper belt to well beyond, into the Scattered disc.

References

1 2 "JPL Small-Body Database Browser - 1999 RD215". JPL Small Body Database. NASA/JPL. Retrieved 7 April 2016.
↑ "Glossary: Absolute Magnitude (H)". JPL. NASA.gov. Retrieved 16 October 2014.

Designation Groups Moons Meanings of names Pronunciation of names

Asteroids	Aten asteroid Asteroid belt Families Jupiter Trojans Near-Earth Spectral types

Distant minor planets	Centaurs Damocloids Neptune trojans Trans-Neptunian objects Detached Kuiper belt Oort cloud Scattered disc

Lists / categories

Trans-Neptunian objects

TNO classes	Cubewanos Scattered-disc objects Detached objects Resonant objects (Neptune trojans Plutinos Twotinos) Natural satellites Double objects

Dwarf Planets (moons)	Pluto Charon Styx Nix Kerberos Hydra Haumea Namaka Hi'iaka Makemake S/2015 (136472) 1 Eris Dysnomia

Sednoids	90377 Sedna 2012 VP113

This article is issued from Wikipedia - version of the 4/8/2016. The text is available under the Creative Commons Attribution/Share Alike but additional terms may apply for the media files.