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101929 (1999 RP20)
Classification: Outer Main-belt Asteroid          SPK-ID: 2101929
[ 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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1588816475521816 5.2632e-08  
a 3.201048663640534 2.6577e-08 au
q 2.692460778066617 1.6917e-07 au
i 16.68018181131198 6.2741e-06 deg
node 346.5528231772273 1.8423e-05 deg
peri 62.84908636352923 2.7123e-05 deg
M 185.2756147244207 2.0679e-05 deg
tp 2460015.784747936998
(2023-Mar-12.28474794)		 0.00012702 TDB
period 2091.880355915062
5.73		 2.6052e-05
7.133e-08		 d
yr
n .1720939722876853 2.1433e-09 deg/d
Q 3.709636549214451 3.08e-08 au
   Orbit Determination Parameters
   # obs. used (total)      490  
   data-arc span      8867 days (24.28 yr)  
   first obs. used      1996-02-15  
   last obs. used      2020-05-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55372  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:57:42  

Additional Information
 Earth MOID = 1.74684 au 
 Jupiter MOID = 1.977 au 
 T_jup = 3.109 
[ 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 14.5   n/a MPO264062  

101929 (1999 RP20)          Discovered 1999-Sep-07 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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