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66636 (1999 RA213)
Classification: Main-belt Asteroid          SPK-ID: 2066636
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 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1405330491129795 4.2225e-08  
a 2.679960962211154 1.5776e-08 au
q 2.303337876687866 1.1e-07 au
i 11.04003267538907 5.0496e-06 deg
node 224.4621184879843 2.1504e-05 deg
peri 239.3798436099007 2.7681e-05 deg
M 232.5397985261941 2.0473e-05 deg
tp 2459767.865897958258
(2022-Jul-07.36589796)
9.3368e-05 TDB
period 1602.474505008125
4.39
1.415e-05
3.874e-08
d
yr
n .2246525600718838 1.9837e-09 deg/d
Q 3.056584047734442 1.7993e-08 au
  Orbit Determination Parameters
   # obs. used (total)      886  
   data-arc span      10435 days (28.57 yr)  
   first obs. used      1992-01-13  
   last obs. used      2020-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57421  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:23:54  

Additional Information
 Earth MOID = 1.34173 au 
 Jupiter MOID = 2.21895 au 
 T_jup = 3.336 
[ 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 14.64   n/a E2021B10  
diameter diameter 3.252 km 0.417 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.167   0.023 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66636 (1999 RA213)          Discovered 1999-Sep-09 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1999 RA213 = 1992 AW3 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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