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JPL Small-Body Database Browser
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312870 (2011 UA161)
Classification: Main-belt Asteroid          SPK-ID: 2312870
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .05069826445785926 8.0803e-08  
a 2.875181105782804 4.7027e-08 au
q 2.729414413717588 2.4208e-07 au
i 11.11756208349189 9.6191e-06 deg
node 244.7713629343323 2.9667e-05 deg
peri 161.2299474724846 7.9553e-05 deg
M 202.2999129453702 7.6768e-05 deg
tp 2459380.555795609320
(2021-Jun-15.05579561)		 0.00039091 TDB
period 1780.722456558154
4.88		 4.3689e-05
1.196e-07		 d
yr
n .2021651373430879 4.96e-09 deg/d
Q 3.020947797848021 4.9411e-08 au
   Orbit Determination Parameters
   # obs. used (total)      145  
   data-arc span      6513 days (17.83 yr)  
   first obs. used      2001-10-20  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63634  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:02:30  

Additional Information
 Earth MOID = 1.74175 au 
 Jupiter MOID = 2.28096 au 
 T_jup = 3.267 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO437380  

312870 (2011 UA161)          Discovered 2001-Oct-20 by NEAT at Palomar
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

[ show close-approach data ]
Alternate Designations
 2011 UA161 = 2010 JJ86 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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