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20783 (2000 RK55)
Classification: Main-belt Asteroid          SPK-ID: 2020783
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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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 .2170351580603713 4.3718e-08  
a 2.729961428954424 1.2999e-08 au
q 2.137463818722583 1.1798e-07 au
i 7.748977645709352 4.4799e-06 deg
node 290.3707819732 3.0498e-05 deg
peri 41.12513598877884 3.1662e-05 deg
M 179.1854749748207 1.0907e-05 deg
tp 2458180.462911772197
(2018-Mar-02.96291177)
4.6767e-05 TDB
period 1647.529476390276
4.51
1.1767e-05
3.222e-08
d
yr
n .2185089888581279 1.5607e-09 deg/d
Q 3.322459039186264 1.582e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1628  
   data-arc span      23605 days (64.63 yr)  
   first obs. used      1955-10-23  
   last obs. used      2020-06-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5053  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-13 02:00:41  

Additional Information
 Earth MOID = 1.13342 au 
 Jupiter MOID = 2.06438 au 
 T_jup = 3.307 
[ 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 13.8   n/a MPO492970  
diameter diameter 4.848 km 0.239 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.299   0.078 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

20783 (2000 RK55)          Discovered 2000-Sep-03 by LINEAR at Socorro
Reference: 20010109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 RK55 = 1986 RY2 = 1999 LB18 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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