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JPL Small-Body Database Browser
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66521 (1999 RR101)
Classification: Main-belt Asteroid          SPK-ID: 2066521
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1201697646757657 3.5889e-08  
a 2.817632399727586 1.8654e-08 au
q 2.479038177309509 1.0056e-07 au
i 6.16782082964338 4.9912e-06 deg
node 180.7334789136053 3.6413e-05 deg
peri 114.8257530539755 4.1657e-05 deg
M 174.8104855135321 2.0074e-05 deg
tp 2458161.639192866784
(2018-Feb-12.13919287)
9.5454e-05 TDB
period 1727.52732583985
4.73
1.7155e-05
4.697e-08
d
yr
n .2083903360689148 2.0694e-09 deg/d
Q 3.156226622145664 2.0895e-08 au
  Orbit Determination Parameters
   # obs. used (total)      736  
   data-arc span      9367 days (25.65 yr)  
   first obs. used      1993-03-19  
   last obs. used      2018-11-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60313  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 09:14:11  

Additional Information
 Earth MOID = 1.47124 au 
 Jupiter MOID = 2.05445 au 
 T_jup = 3.299 
[ 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 15.3   n/a MPO459297  

66521 (1999 RR101)          Discovered 1999-Sep-08 by LINEAR at Socorro
Reference: 20030910/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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