(85770) 1998 UP1

(85770) 1998 UP₁
Discovery
Discovered by	LINEAR
Discovery site	Lincoln Lab's ETS
Discovery date	18 October 1998
Designations
Alternative designations	1998 UP₁
Minor planet category	NEO · Aten
Orbital characteristics
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc	8787 days (24.06 yr)
Aphelion	1.3427 AU (200.87 Gm)
Perihelion	0.65377 AU (97.803 Gm)
Semi-major axis	0.99826 AU (149.338 Gm)
Eccentricity	0.34509
Orbital period (sidereal)	1.00 yr (364.30 d)
Mean anomaly	193.86°
Mean motion	0° 59^m 17.484^s / day
Inclination	33.180°
Longitude of ascending node	18.357°
Argument of perihelion	234.27°
Earth MOID	0.0833366 AU (12.46698 Gm)
Physical characteristics
Mean diameter	210–470 meters
Absolute magnitude (H)	20.5

(85770) 1998 UP₁ (provisional designation 1998 UP₁) is a near Earth, Aten asteroid orbiting at nearly a 1:1 resonance with Earth.