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181151 (2005 RG8)
Classification: Main-belt Asteroid          SPK-ID: 2181151
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | 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.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1620350418990634 4.3431e-08  
a 3.085151949703544 2.5074e-08 au
q 2.585249224268353 1.4501e-07 au
i .676947313511108 6.2884e-06 deg
node 9.32139762072643 0.00038862 deg
peri 313.1295474992742 0.00038913 deg
M 327.0672591732642 2.0754e-05 deg
tp 2459381.566722544748
(2021-Jun-16.06672254)
0.00011505 TDB
period 1979.307475774721
5.42
2.4129e-05
6.606e-08
d
yr
n .181881796742617 2.2173e-09 deg/d
Q 3.585054675138735 2.9136e-08 au
  Orbit Determination Parameters
   # obs. used (total)      387  
   data-arc span      6728 days (18.42 yr)  
   first obs. used      2002-01-14  
   last obs. used      2020-06-16  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .598  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:29:25  

Additional Information
 Earth MOID = 1.57089 au 
 Jupiter MOID = 1.73631 au 
 T_jup = 3.206 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.51   n/a E2021B55  
diameter diameter 3.773 km 0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.086   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

181151 (2005 RG8)          Discovered 2005-Sep-08 by LINEAR at Socorro
Reference: 20080321/Numbers.arcLast Updated: 2008-03-26

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