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216506 (2000 RF81)
Classification: Main-belt Asteroid          SPK-ID: 2216506
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2766795507610889 8.1944e-08  
a 2.744719025278987 1.4581e-08 au
q 1.985311398399383 2.2933e-07 au
i 14.20227604836955 7.7773e-06 deg
node 291.3928626903873 2.0579e-05 deg
peri 26.82115346805265 2.2099e-05 deg
M 182.1299306533891 7.8859e-06 deg
tp 2460021.126693179230
(2023-Mar-17.62669318)
3.9959e-05 TDB
period 1660.90681040234
4.55
1.3235e-05
3.624e-08
d
yr
n .2167490660796274 1.7271e-09 deg/d
Q 3.504126652158591 1.8615e-08 au
  Orbit Determination Parameters
   # obs. used (total)      510  
   data-arc span      8487 days (23.24 yr)  
   first obs. used      1998-01-07  
   last obs. used      2021-04-03  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55386  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-04 10:41:47  

Additional Information
 Earth MOID = .979389 au 
 Jupiter MOID = 1.83881 au 
 T_jup = 3.249 
[ 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 15.38   n/a MPCxxxxx  

216506 (2000 RF81)          Discovered 2000-Sep-01 by LINEAR at Socorro
Reference: 20090707/Numbers.arcLast Updated: 2009-07-09

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