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118213 (1995 YO18)
Classification: Main-belt Asteroid          SPK-ID: 2118213
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1223055389627291 4.851e-08  
a 3.006473752181111 2.3811e-08 au
q 2.638765359543302 1.5851e-07 au
i 3.923269532818393 5.5344e-06 deg
node 182.711194206588 6.4945e-05 deg
peri 241.5685491412556 7.342e-05 deg
M 292.9667628799834 4.0166e-05 deg
tp 2459555.045717167397
(2021-Dec-06.54571717)
0.00021539 TDB
period 1904.077196089189
5.21
2.262e-05
6.193e-08
d
yr
n .1890679646494423 2.2461e-09 deg/d
Q 3.37418214481892 2.6723e-08 au
  Orbit Determination Parameters
   # obs. used (total)      459  
   data-arc span      9123 days (24.98 yr)  
   first obs. used      1995-12-16  
   last obs. used      2020-12-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .62512  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 16:56:13  

Additional Information
 Earth MOID = 1.65423 au 
 Jupiter MOID = 1.93802 au 
 T_jup = 3.236 
[ 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 15.67   n/a E2021B55  
diameter diameter 4.741 km 0.082 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.050   0.005 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

118213 (1995 YO18)          Discovered 1995-Dec-22 by Spacewatch at Kitt Peak
Reference: 20051116/Numbers.arcLast Updated: 2005-11-21

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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