(137295) 1999 RB216

(137295) 1999 RB₂₁₆

Discovery
Discovered by	C. A. Trujillo, D. C. Jewitt, and J. X. Luu[1]
Discovery date	8 September 1999
Designations
MPC designation	(137295) 1999 RB216
Alternative names	none
Minor planet category	twotino[2][3]
Orbital characteristics[4]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 3
Observation arc	5116 days (14.01 yr)
Aphelion	61.041 AU (9.1316 Tm)
Perihelion	33.642 AU (5.0328 Tm)
Semi-major axis	47.341 AU (7.0821 Tm)
Eccentricity	0.28937
Orbital period	325.74 yr (118976 d)[5]
Mean anomaly	1.7533°
Mean motion	0° 0^m 10.893^s / day
Inclination	12.710°
Longitude of ascending node	175.78°
Argument of perihelion	208.88°
Earth MOID	32.6505 AU (4.88445 Tm)
Jupiter MOID	28.7035 AU (4.29398 Tm)
Physical characteristics
Dimensions	153 km[6]
Geometric albedo	0.09 (assumed)
Absolute magnitude (H)	7.4

(137295) 1999 RB₂₁₆, also written as 1999 RB216, is a trans-Neptunian object that resides in the Kuiper belt. It was discovered on September 8, 1999, by Chad Trujillo, David C. Jewitt, and Jane X. Luu.

It is in a 2:1 orbital resonance with the planet Neptune.

References

1. List Of Transneptunian Objects
2. "MPEC 2009-J35 :Distant Minor Planets (2009 MAY 29.0 TT)". Minor Planet Center. 8 May 2009. Retrieved 2009-05-12.
3. Marc W. Buie (14 November 2007). "Orbit Fit and Astrometric record for 137295". SwRI (Space Science Department). Retrieved 2009-05-12.
4. "137295 (1999 RB216)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 7 April 2016.
5. AstDyS: (137295) 1999RB216
6. List of known trans-Neptunian objects

External links

• (137295) 1999 RB216 at the JPL Small-Body Database

• Discovery · Orbit diagram · Orbital elements · Physical parameters