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JPL Small-Body Database Browser
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66626 (1999 RJ205)
Classification: Main-belt Asteroid          SPK-ID: 2066626
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2015257473221755 3.9284e-08  
a 2.527588251505563 1.2401e-08 au
q 2.018214140198153 9.9842e-08 au
i 14.04234213708903 6.7426e-06 deg
node 307.5522403910352 3.103e-05 deg
peri 332.7160150019429 4.1916e-05 deg
M 116.3871702179712 2.7969e-05 deg
tp 2458525.973438168643
(2019-Feb-11.47343817)
0.00011431 TDB
period 1467.769702960875
4.02
1.0802e-05
2.957e-08
d
yr
n .2452700851324195 1.805e-09 deg/d
Q 3.036962362812972 1.49e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1292  
   data-arc span      7498 days (20.53 yr)  
   first obs. used      1999-07-23  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50931  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 15:00:10  

Additional Information
 Earth MOID = 1.01158 au 
 Jupiter MOID = 2.19128 au 
 T_jup = 3.383 
[ 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 14.2   n/a MPO502575  
diameter diameter 4.281 km 0.145 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.184   0.043 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66626 (1999 RJ205)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RJ205 = 2000 XF29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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