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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 48 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2219632791000894 3.6189e-08  
a .8592361480262998 1.6003e-09 au
q .6685172750890525 3.1768e-08 au
i 1.331283271973521 1.6718e-06 deg
node 250.8303456135624 3.0409e-05 deg
peri 357.8580113942816 3.3599e-05 deg
M 319.1036112657036 1.0228e-05 deg
tp 2459033.548343471651
(2020-Jul-03.04834347)
8.2624e-06 TDB
period 290.9157511948461
0.80
8.1272e-07
2.225e-09
d
yr
n 1.237471668417444 3.4571e-09 deg/d
Q 1.049955020963547 1.9555e-09 au

Additional Model Parameters
 Parameter Value Uncertainty (1-sigma) 
A2 [EST] -4.803380800339238E-14 6.719E-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)      275  
   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      .41663  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-06 05:24:26  

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 24.3   n/a E2021C27  

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