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184474 (2005 OA)
Classification: Main-belt Asteroid          SPK-ID: 2184474
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2398528447850403 3.493e-08  
a 2.264327971521578 9.7072e-09 au
q 1.721222466025788 8.0662e-08 au
i 3.475988030311442 5.4891e-06 deg
node 213.3237012474467 6.5036e-05 deg
peri 78.53984943673119 6.6607e-05 deg
M 141.9995076786224 1.3221e-05 deg
tp 2458509.601435653126
(2019-Jan-26.10143565)
4.4083e-05 TDB
period 1244.535886454203
3.41
8.003e-06
2.191e-08
d
yr
n .2892644590793384 1.8601e-09 deg/d
Q 2.807433477017369 1.2036e-08 au
  Orbit Determination Parameters
   # obs. used (total)      331  
   data-arc span      11412 days (31.24 yr)  
   first obs. used      1988-08-10  
   last obs. used      2019-11-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55699  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 08:24:20  

Additional Information
 Earth MOID = .709363 au 
 Jupiter MOID = 2.39459 au 
 T_jup = 3.576 
[ 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 17.3   n/a MPO436911  

184474 (2005 OA)          Discovered 2005-Jul-16 by Lowe, A. at Mayhill
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

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Alternate Designations
 2005 OA = 1988 PR2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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