(469306) 1999 CD158

(469306) 1999 CD₁₅₈
Discovery
Discovered by	J. X. Luu D. C. Jewitt C. Trujillo
Discovery site	Mauna Kea Obs.
Discovery date	10 February 1999
Designations
MPC designation	(469306) 1999 CD₁₅₈
Alternative designations	1999 CD₁₅₈
Minor planet category	TNO · res 4:7? distant · detached
Orbital characteristics
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 3
Observation arc	16.18 yr (5,908 days)
Aphelion	50.139 AU
Perihelion	37.410 AU
Semi-major axis	43.775 AU
Eccentricity	0.1454
Orbital period (sidereal)	289.63 yr (105,787 days)
Mean anomaly	250.48°
Mean motion	0° 0^m 12.24^s / day
Inclination	25.486°
Longitude of ascending node	119.03°
Time of perihelion	≈ 17 February 2107 ±3 days
Argument of perihelion	143.51°
Physical characteristics
Mean diameter	310 km
Synodic rotation period	6.88±0.02 h
Geometric albedo	0.13
Spectral type	IR · C B–V = 0.770 · 0.830 · 0.864 · 0.860 V–R = 0.630 · 0.510 · 0.520 · 0.520 V–I = 1.110 · 1.092 · 1.100
Apparent magnitude	21.8
Absolute magnitude (H)	4.837±0.111 (R) · 5.28

(469306) 1999 CD₁₅₈ (provisional designation 1999 CD₁₅₈) is a resonant trans-Neptunian object from the circumstellar disc of the Kuiper belt, located in the outermost region of the Solar System. It measures approximately 310 kilometers (190 miles) in diameter. It was discovered on 10 February 1999, by American astronomers Jane Luu, David Jewitt, and Chad Trujillo at Mauna Kea Observatories on the Big Island of Hawaii, United States.