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18482 (1995 YO)
Classification: Main-belt Asteroid          SPK-ID: 2018482
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08719739087605854 3.6743e-08  
a 3.169651863316512 1.8282e-08 au
q 2.893266490849875 1.1825e-07 au
i 10.39348232167771 4.2519e-06 deg
node 108.9551730146351 2.21e-05 deg
peri 290.0855412374691 3.2527e-05 deg
M 172.4634772470683 2.3286e-05 deg
tp 2458013.060693729581
(2017-Sep-16.56069373)
0.00013262 TDB
period 2061.179305506515
5.64
1.7833e-05
4.882e-08
d
yr
n .1746572940249531 1.5111e-09 deg/d
Q 3.44603723578315 1.9876e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1755  
   data-arc span      23861 days (65.33 yr)  
   first obs. used      1954-09-28  
   last obs. used      2020-01-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49816  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:26:44  

Additional Information
 Earth MOID = 1.92311 au 
 Jupiter MOID = 1.92243 au 
 T_jup = 3.171 
[ 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 13.1   n/a MPO344449  
diameter diameter 14.281 km 0.403 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 8.743 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.072   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

18482 (1995 YO)          Discovered 1995-Dec-19 by Kobayashi, T. at Oizumi
Reference: 20001111/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 1995 YO = 1993 OZ11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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