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18909 (2000 OE21)
Classification: Main-belt Asteroid          SPK-ID: 2018909
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1865959235211667 3.7041e-08  
a 3.138544111379435 1.6475e-08 au
q 2.55290457440467 1.1563e-07 au
i 6.101274544509128 3.7668e-06 deg
node 182.3194708080894 3.5054e-05 deg
peri 234.7281876395586 3.6104e-05 deg
M 166.7614957924887 9.4699e-06 deg
tp 2458059.728692502715
(2017-Nov-02.22869250)
5.0727e-05 TDB
period 2030.910487397281
5.56
1.5992e-05
4.378e-08
d
yr
n .177260397360673 1.3958e-09 deg/d
Q 3.724183648354201 1.955e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1505  
   data-arc span      11192 days (30.64 yr)  
   first obs. used      1989-10-25  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48666  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 18:27:09  

Additional Information
 Earth MOID = 1.57063 au 
 Jupiter MOID = 1.67836 au 
 T_jup = 3.175 
[ 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 13.6   n/a MPO263516  
diameter diameter 10.005 km 0.398 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.049   0.006 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18909 (2000 OE21)          Discovered 2000-Jul-31 by LINEAR at Socorro
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2000 OE21 = 1989 UY4 = 2000 RN65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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