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66633 (1999 RB212)
Classification: Main-belt Asteroid          SPK-ID: 2066633
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2160378198397619 3.2384e-08  
a 2.686499880970271 1.2752e-08 au
q 2.106114303685674 8.8444e-08 au
i 10.62843830549126 5.0139e-06 deg
node 335.593990073639 1.975e-05 deg
peri 281.9135452151668 2.2723e-05 deg
M 38.31380612630341 1.1596e-05 deg
tp 2459029.328497855740
(2020-Jun-28.82849786)
5.1668e-05 TDB
period 1608.342970907003
4.40
1.1451e-05
3.135e-08
d
yr
n .2238328556234389 1.5937e-09 deg/d
Q 3.266885458254868 1.5507e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1439  
   data-arc span      7657 days (20.96 yr)  
   first obs. used      1999-09-05  
   last obs. used      2020-08-22  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49861  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 12:23:53  

Additional Information
 Earth MOID = 1.12061 au 
 Jupiter MOID = 1.96836 au 
 T_jup = 3.316 
[ 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 14.09   n/a E2021B10  
diameter diameter 8.430 km 0.166 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.025 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66633 (1999 RB212)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RB212 = 2000 XL27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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