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186981 (2004 RD329)
Classification: Main-belt Asteroid          SPK-ID: 2186981
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1027467224469543 7.9999e-08  
a 3.142153566163263 3.7811e-08 au
q 2.819307585814979 2.7568e-07 au
i 9.496968351895028 5.4882e-06 deg
node 217.8379054089011 2.9179e-05 deg
peri 135.084362197332 3.8e-05 deg
M 344.5100868353327 2.1489e-05 deg
tp 2459288.035863240901
(2021-Mar-14.53586324)
0.00012142 TDB
period 2034.414940337156
5.57
3.6721e-05
1.005e-07
d
yr
n .1769550512346997 3.194e-09 deg/d
Q 3.464999546511547 4.1696e-08 au
  Orbit Determination Parameters
   # obs. used (total)      377  
   data-arc span      8028 days (21.98 yr)  
   first obs. used      1998-08-27  
   last obs. used      2020-08-19  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .53379  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:53:32  

Additional Information
 Earth MOID = 1.82339 au 
 Jupiter MOID = 2.04028 au 
 T_jup = 3.181 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.34   n/a E2021B55  

186981 (2004 RD329)          Discovered 2004-Sep-15 by LONEOS at Anderson Mesa
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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