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JPL Small-Body Database Browser
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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2156876137569857 3.3379e-08  
a 2.68564049515544 1.4326e-08 au
q 2.106381105346234 8.9899e-08 au
i 10.62626440107658 5.6601e-06 deg
node 335.6073485525637 1.9986e-05 deg
peri 281.9484295964187 2.4596e-05 deg
M 353.5178426532921 1.6748e-05 deg
tp 2459029.445916838252
(2020-Jun-28.94591684)
7.4878e-05 TDB
period 1607.571292150562
4.40
1.2863e-05
3.522e-08
d
yr
n .223940301595211 1.7919e-09 deg/d
Q 3.264899884964647 1.7416e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1236  
   data-arc span      7429 days (20.34 yr)  
   first obs. used      1999-09-05  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52184  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 10:51:21  

Additional Information
 Earth MOID = 1.12244 au 
 Jupiter MOID = 1.97103 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 14.0   n/a MPO432218  
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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