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18146 (2000 OU49)
Classification: Main-belt Asteroid          SPK-ID: 2018146
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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.


Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1422777942372314 3.3477e-08  
a 2.616306628405182 1.0644e-08 au
q 2.244064292267445 8.8191e-08 au
i 14.05276444521019 5.0353e-06 deg
node 153.7185320912325 1.7481e-05 deg
peri 284.7917705840608 2.6385e-05 deg
M 274.2975156290574 2.0052e-05 deg
tp 2459764.478377283924
(2022-Jul-03.97837728)
8.6595e-05 TDB
period 1545.722003213334
4.23
9.433e-06
2.583e-08
d
yr
n .2329008704357005 1.4213e-09 deg/d
Q 2.98854896454292 1.2159e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1794  
   data-arc span      13318 days (36.46 yr)  
   first obs. used      1985-02-20  
   last obs. used      2021-08-08  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .49375  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-24 22:07:23  

Additional Information
 Earth MOID = 1.3067 au 
 Jupiter MOID = 2.30188 au 
 T_jup = 3.351 
[ 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 13.94   n/a E2021B10  
diameter diameter 4.436 km 0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.297   0.064 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18146 (2000 OU49)          Discovered 2000-Jul-31 by LINEAR at Socorro
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 2000 OU49 = 1985 DU3 = 1998 DC20 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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