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102860 (1999 WJ1)
Classification: Main-belt Asteroid          SPK-ID: 2102860
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1137829962827541 4.7761e-08  
a 2.428056557899398 1.2486e-08 au
q 2.151785007597614 1.1801e-07 au
i 9.050434968145126 4.2594e-06 deg
node 61.10940862066462 2.6761e-05 deg
peri 291.945896515114 3.3191e-05 deg
M 218.6562972595859 2.3199e-05 deg
tp 2459543.076011161523
(2021-Nov-24.57601116)
9.1408e-05 TDB
period 1381.93184578501
3.78
1.066e-05
2.919e-08
d
yr
n .2605048874863297 2.0095e-09 deg/d
Q 2.704328108201183 1.3907e-08 au
  Orbit Determination Parameters
   # obs. used (total)      742  
   data-arc span      8972 days (24.56 yr)  
   first obs. used      1995-12-19  
   last obs. used      2020-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53446  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 19:52:13  

Additional Information
 Earth MOID = 1.16698 au 
 Jupiter MOID = 2.71848 au 
 T_jup = 3.483 
[ 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 15.75   n/a E2021B55  
diameter diameter 1.766 km 0.621 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.326   0.186 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

102860 (1999 WJ1)          Discovered 1999-Nov-28 by Klet at Klet
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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