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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 31 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2172251760377043 4.2434e-08  
a 2.729464641643587 1.2789e-08 au
q 2.13655620437387 1.1476e-07 au
i 7.748784486807954 4.3513e-06 deg
node 290.3686284931488 3.0411e-05 deg
peri 41.15896998951073 3.1566e-05 deg
M 222.8528643828043 1.105e-05 deg
tp 2459827.978539063584
(2022-Sep-05.47853906)
5.3309e-05 TDB
period 1647.079780750212
4.51
1.1576e-05
3.169e-08
d
yr
n .2185686474980751 1.5361e-09 deg/d
Q 3.322373078913305 1.5567e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1676  
   data-arc span      23876 days (65.37 yr)  
   first obs. used      1955-10-23  
   last obs. used      2021-03-06  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50064  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 03:31:31  

Additional Information
 Earth MOID = 1.13062 au 
 Jupiter MOID = 2.06478 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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