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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1223714311803373 5.2808e-08  
a 3.009607016564294 2.9884e-08 au
q 2.641317098656936 1.6666e-07 au
i 3.919890940882177 8.7635e-06 deg
node 182.7551176052901 7.8247e-05 deg
peri 241.0401697847905 8.8401e-05 deg
M 255.6852408760812 4.5958e-05 deg
tp 2459553.094262932414
(2021-Dec-04.59426293)
0.00024826 TDB
period 1907.054536926543
5.22
2.8404e-05
7.777e-08
d
yr
n .1887727870542103 2.8116e-09 deg/d
Q 3.377896934471652 3.3541e-08 au
  Orbit Determination Parameters
   # obs. used (total)      361  
   data-arc span      8162 days (22.35 yr)  
   first obs. used      1995-12-16  
   last obs. used      2018-04-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64814  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 04:38:03  

Additional Information
 Earth MOID = 1.65729 au 
 Jupiter MOID = 1.93621 au 
 T_jup = 3.235 
[ 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 15.6   n/a MPO432685  
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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