(85770) 1998 UP1

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1998 UP1
Discovery[1]
Discovered by 1998-10-18 by LINEAR
Discovery site Socorro
Designations
(85770)
Minor planet category Aten Aten
Orbital characteristics[1]
Epoch 2455000.5
(2009-Jun-18.0)
Aphelion 1.343000170
± 3.545e-09 AU
Perihelion .65417453
± 6.8839e-07 AU
.99858735183
± 2.6359e-09 AU
Eccentricity .34490004
± 6.8807e-07
364.483202
± 1.4431e-06 d
1.00 yr ± 3.951e-09
342.40621
± 6.9834e-05°
Inclination 33.17885
± 6.4782e-05°
18.388447
± 7.7329e-06°
234.35098
± 3.1974e-05°
Physical characteristics
20.374

1998 UP1 is a near Earth, Aten asteroid orbiting at nearly a 1:1 resonance with Earth.

Orbit[edit]

With an orbital period of 364.48 d, 1998 UP1 is in a near perfect 1:1 orbital Resonance with Earth. Although their periods are almost identical, their orbits are very different; 1998 UP1 has a highly eccentric orbit and moves between .65 AU and 1.35 AU during the year, it is also very highly inclined at 33°.[1] The period of 1998 UP1 was originally thought to be slightly longer than 1 year producing an error in the predicted position of about 35 degrees; it was selected as a priority for recovery and recovered by the Camarillo Observatory on 12 October 1999.[2]

External links[edit]

References[edit]