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146954 (2002 EQ90)
Classification: Main-belt Asteroid          SPK-ID: 2146954
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1225846571082233 4.7484e-08  
a 3.195934638460895 2.5215e-08 au
q 2.804162086664872 1.4745e-07 au
i 2.137148999329944 4.7918e-06 deg
node 61.75879325438022 0.00012212 deg
peri 155.2243159423476 0.00012353 deg
M 28.33322188117291 1.8324e-05 deg
tp 2458836.256299292151
(2019-Dec-18.75629929)
0.0001061 TDB
period 2086.869347326693
5.71
2.4698e-05
6.762e-08
d
yr
n .1725072058110225 2.0416e-09 deg/d
Q 3.587707190256917 2.8306e-08 au
  Orbit Determination Parameters
   # obs. used (total)      519  
   data-arc span      6736 days (18.44 yr)  
   first obs. used      2002-02-10  
   last obs. used      2020-07-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57283  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 14:22:18  

Additional Information
 Earth MOID = 1.79711 au 
 Jupiter MOID = 1.38088 au 
 T_jup = 3.183 
[ 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 15.0   n/a MPO432924  
diameter diameter 5.640 km 0.533 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.061   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

146954 (2002 EQ90)          Discovered 2002-Mar-12 by LINEAR at Socorro
Reference: 20070106/Numbers.arcLast Updated: 2007-01-09

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