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26106 (1990 WJ2)
Classification: Main-belt Asteroid          SPK-ID: 2026106
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08152646907206045 5.2969e-08  
a 2.653967009395367 1.2944e-08 au
q 2.437598450085627 1.4527e-07 au
i 21.56731710082458 5.5023e-06 deg
node 216.4661798669797 8.8691e-06 deg
peri 195.7569516707721 2.4627e-05 deg
M 349.126572964425 2.1843e-05 deg
tp 2459248.198602017875
(2021-Feb-02.69860202)
9.5778e-05 TDB
period 1579.216623264622
4.32
1.1553e-05
3.163e-08
d
yr
n .2279611262296575 1.6677e-09 deg/d
Q 2.870335568705107 1.3999e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1634  
   data-arc span      11026 days (30.19 yr)  
   first obs. used      1990-11-11  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4359  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:17:43  

Additional Information
 Earth MOID = 1.44934 au 
 Jupiter MOID = 2.52192 au 
 T_jup = 3.285 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457609.5 (2016-Aug-09.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08249354564257065 5.3259e-08  
q 2.435213173311208 1.4625e-07 au
tp 2457662.195263303852
(2016-Sep-30.69526330)
9.5543e-05 TDB
node 216.5298071540385 8.8534e-06 deg
peri 194.3213774275174 2.4223e-05 deg
i 21.58963652074635 5.5068e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1634  
   data-arc span      11026 days (30.19 yr)  
   first obs. used      1990-11-11  
   last obs. used      2021-01-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4359  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 03:17:43  

Additional Information
 Jupiter MOID = 2.52192 au 
 T_jup = 3.285 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.836561878758373E-15 -7.767182193680166E-15 -7.890172024664874E-13 -9.862255639824658E-15 -1.274527923894589E-13 -8.282622496432626E-15
q -7.767182193680166E-15 2.139049447800357E-14 1.843265015801086E-12 2.600871997867169E-14 2.756809363761278E-13 2.321450956478462E-14
tp -7.890172024664874E-13 1.843265015801086E-12 9.128499954812084E-9 4.450988824707908E-12 2.158713579513223E-9 8.037171693307133E-12
node -9.862255639824658E-15 2.600871997867169E-14 4.450988824707908E-12 7.83820918102452E-11 -7.148513121602415E-11 -1.831612849622156E-12
peri -1.274527923894589E-13 2.756809363761278E-13 2.158713579513223E-9 -7.148513121602415E-11 5.867534851917777E-10 3.445573119643419E-12
i -8.282622496432626E-15 2.321450956478462E-14 8.037171693307133E-12 -1.831612849622156E-12 3.445573119643419E-12 3.03247938920363E-11

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 13.74   n/a E2020-QM5  
diameter diameter 4.978 km 0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.179   0.040 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

26106 (1990 WJ2)          Discovered 1990-Nov-18 by Elst, E. W. at La Silla
Reference: 20010705/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 WJ2 = 2001 FP8 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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