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115474 (2003 UE4)
Classification: Main-belt Asteroid          SPK-ID: 2115474
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .160312501604713 3.6937e-08  
a 2.928309156896562 1.7769e-08 au
q 2.458864590482486 1.0788e-07 au
i 20.53505005607095 5.2994e-06 deg
node 236.948570241757 1.4448e-05 deg
peri 230.1965935580735 2.4032e-05 deg
M 94.68266131307531 1.8734e-05 deg
tp 2458719.115867481202
(2019-Aug-23.61586748)
9.4402e-05 TDB
period 1830.306471147274
5.01
1.666e-05
4.561e-08
d
yr
n .1966883719611965 1.7903e-09 deg/d
Q 3.397753723310638 2.0618e-08 au
  Orbit Determination Parameters
   # obs. used (total)      864  
   data-arc span      8160 days (22.34 yr)  
   first obs. used      1998-11-15  
   last obs. used      2021-03-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51054  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 08:56:36  

Additional Information
 Earth MOID = 1.52005 au 
 Jupiter MOID = 2.04158 au 
 T_jup = 3.164 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.59   n/a E2021B55  
diameter diameter 8.095 km 0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.051   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

115474 (2003 UE4)          Discovered 2003-Oct-16 by NEAT at Palomar
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2003 UE4 = 2000 GJ157 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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