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78513 (2002 RL87)
Classification: Main-belt Asteroid          SPK-ID: 2078513
[ 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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08621605796897731 7.1374e-08  
a 2.92465490037427 1.7639e-08 au
q 2.672502683944348 2.124e-07 au
i 2.44148668231619 7.5994e-06 deg
node 32.01868836871247 0.00014195 deg
peri 279.1622958881243 0.00014988 deg
M 239.1304466928999 4.9232e-05 deg
tp 2459613.873184299500
(2022-Feb-03.37318430)		 0.00024994 TDB
period 1826.881462751701
5.00		 1.6527e-05
4.525e-08		 d
yr
n .1970571202018535 1.7827e-09 deg/d
Q 3.176807116804191 1.916e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1079  
   data-arc span      10103 days (27.66 yr)  
   first obs. used      1992-09-28  
   last obs. used      2020-05-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51739  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:26:35  

Additional Information
 Earth MOID = 1.65958 au 
 Jupiter MOID = 2.03404 au 
 T_jup = 3.272 
[ 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 14.3   n/a MPO337847  
diameter diameter 3.746 km 0.509 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.288   0.121 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78513 (2002 RL87)          Discovered 2002-Sep-05 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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