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(2012 UK171)
Classification: Aten [NEO]          SPK-ID: 3615463
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Close-Approach Data ]

[ hide orbit diagram ]

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.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 47 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2219632931552303 4.3168e-08  
a .8592361475419843 1.813e-09 au
q .6685172626355521 3.8015e-08 au
i 1.331283336594899 1.9216e-06 deg
node 250.8303456914982 3.2735e-05 deg
peri 357.8580143059655 3.6057e-05 deg
M 319.1036076473341 1.1738e-05 deg
tp 2459033.548346367711
(2020-Jul-03.04834637)
9.4619e-06 TDB
period 290.9157509488805
0.80
9.2078e-07
2.521e-09
d
yr
n 1.23747166946371 3.9167e-09 deg/d
Q 1.049955032448417 2.2155e-09 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -4.845624777926004E-14 6.836E-15
ALN [SET] 1. n/a
NK [SET] 0. n/a
NM [SET] 2. n/a
R0 [SET] 1. n/a
  Orbit Determination Parameters
   # obs. used (total)      272  
   data-arc span      3002 days (8.22 yr)  
   first obs. used      2012-10-25  
   last obs. used      2021-01-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41792  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jan-14 05:20:46  

Additional Information
 Earth MOID = .0140216 au 
 Jupiter MOID = 3.96043 au 
 T_jup = 6.848 
 Nongravitational accels. using nonstandard g(r) = (1 au/ r)^2 
[ 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 24.4   n/a MPO437984  

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