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JPL Small-Body Database Browser
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66480 (1999 RW33)
Classification: Main-belt Asteroid          SPK-ID: 2066480
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1636303184401796 3.7994e-08  
a 2.647005173236892 1.5551e-08 au
q 2.213874873827336 9.7619e-08 au
i 11.31732177944076 4.5467e-06 deg
node 175.0664645907504 2.2072e-05 deg
peri 264.171870773373 2.648e-05 deg
M 235.2192156745716 1.6207e-05 deg
tp 2459545.725076793256
(2021-Nov-27.22507679)
7.2726e-05 TDB
period 1573.006843214506
4.31
1.3862e-05
3.795e-08
d
yr
n .2288610514016105 2.0168e-09 deg/d
Q 3.080135472646447 1.8095e-08 au
  Orbit Determination Parameters
   # obs. used (total)      833  
   data-arc span      12901 days (35.32 yr)  
   first obs. used      1984-03-29  
   last obs. used      2019-07-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6165  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 14:57:49  

Additional Information
 Earth MOID = 1.26281 au 
 Jupiter MOID = 2.27331 au 
 T_jup = 3.346 
[ 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 15.0   n/a MPO385239  
diameter diameter 5.491 km 0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.077   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

66480 (1999 RW33)          Discovered 1999-Sep-10 by Starkenburg at Starkenburg
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 RW33 = 1988 CE4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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