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(2012 UR158)
Classification: Apollo [NEO, PHA]          SPK-ID: 3614980
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .8551843518452494 4.4475e-08  
a 2.238801086696682 7.1822e-08 au
q .32421343045954 9.321e-08 au
i 3.218122000434776 7.3235e-06 deg
node 287.6564036624082 0.00016833 deg
peri 238.1462020948292 0.0001675 deg
M 80.00634788330025 3.8543e-05 deg
tp 2458728.578444501403
(2019-Sep-02.07844450)
0.00011795 TDB
period 1223.549912842953
3.35
5.8879e-05
1.612e-07
d
yr
n .2942258392741248 1.4158e-08 deg/d
Q 4.153388742933824 1.3324e-07 au
  Orbit Determination Parameters
   # obs. used (total)      132  
   data-arc span      1361 days (3.73 yr)  
   first obs. used      2012-10-22  
   last obs. used      2016-07-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43346  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 08:48:19  

Additional Information
 Earth MOID = .0033605 au 
 Jupiter MOID = .882972 au 
 T_jup = 3.003 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 20.7   n/a MPO386856  
diameter diameter 0.629 km 0.309 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  
geometric albedo albedo 0.023   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[neos] (http://adsabs.harvard.edu/abs/2017AJ....154..168M)  

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]
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