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JPL Small-Body Database Browser
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59950 (1999 RA220)
Classification: Main-belt Asteroid          SPK-ID: 2059950
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 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04939880591457301 4.0572e-08  
a 3.177932939146095 2.4279e-08 au
q 3.020946846675688 1.3379e-07 au
i 11.63745623932004 4.8344e-06 deg
node 37.62224959398328 2.4461e-05 deg
peri 249.3380653474236 6.7481e-05 deg
M 296.4952591095556 6.6744e-05 deg
tp 2459365.522106625852
(2021-May-31.02210663)
0.00038526 TDB
period 2069.262177008266
5.67
2.3713e-05
6.492e-08
d
yr
n .1739750544904305 1.9937e-09 deg/d
Q 3.334919031616501 2.5478e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1471  
   data-arc span      7452 days (20.40 yr)  
   first obs. used      1999-09-04  
   last obs. used      2020-01-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50469  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 12:57:51  

Additional Information
 Earth MOID = 2.0298 au 
 Jupiter MOID = 1.75065 au 
 T_jup = 3.166 
[ 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 13.0   n/a MPO299358  
diameter diameter 9.033 km 0.206 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.164   0.038 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

59950 (1999 RA220)          Discovered 1999-Sep-04 by LONEOS at Anderson Mesa
Reference: 20030614/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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