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66620 (1999 RZ203)
Classification: Main-belt Asteroid          SPK-ID: 2066620
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08533450954214057 6.246e-08  
a 2.680768537345973 2.1809e-08 au
q 2.452006469015553 1.6902e-07 au
i 13.53359470184346 6.6948e-06 deg
node 324.7846743005953 2.2011e-05 deg
peri 3.149184174916701 4.0947e-05 deg
M 328.5498209252819 3.874e-05 deg
tp 2459340.558033860179
(2021-May-06.05803386)
0.00017332 TDB
period 1603.198890215418
4.39
1.9564e-05
5.356e-08
d
yr
n .2245510536447711 2.7402e-09 deg/d
Q 2.909530605676393 2.367e-08 au
  Orbit Determination Parameters
   # obs. used (total)      512  
   data-arc span      7587 days (20.77 yr)  
   first obs. used      1999-09-07  
   last obs. used      2020-06-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .54438  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:23:47  

Additional Information
 Earth MOID = 1.43852 au 
 Jupiter MOID = 2.41801 au 
 T_jup = 3.332 
[ 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 15.05   n/a MPCxxxxx  
diameter diameter 5.211 km 0.309 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.071   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66620 (1999 RZ203)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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