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101462 (1998 WW7)
Classification: Main-belt Asteroid          SPK-ID: 2101462
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 .1868686846737597 5.0837e-08  
a 2.363563167075959 9.2815e-09 au
q 1.921887226901129 1.1933e-07 au
i 3.218542314412813 5.209e-06 deg
node 233.3436788456135 7.8738e-05 deg
peri 148.9542017308995 7.945e-05 deg
M 359.6092787327142 1.0677e-05 deg
tp 2459001.940501773109
(2020-Jun-01.44050177)
3.9366e-05 TDB
period 1327.239343590904
3.63
7.8179e-06
2.14e-08
d
yr
n .2712396989573894 1.5977e-09 deg/d
Q 2.80523910725079 1.1016e-08 au
  Orbit Determination Parameters
   # obs. used (total)      571  
   data-arc span      8003 days (21.91 yr)  
   first obs. used      1998-11-24  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54854  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:00:28  

Additional Information
 Earth MOID = .926023 au 
 Jupiter MOID = 2.65556 au 
 T_jup = 3.524 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456773.5 (2014-Apr-26.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1884432742365806 5.1061e-08  
q 1.918085401157384 1.2013e-07 au
tp 2456347.271285206274
(2013-Feb-23.77128521)
3.5392e-05 TDB
node 233.3910619300695 7.8729e-05 deg
peri 148.8923060991823 7.9419e-05 deg
i 3.218491077944529 5.2139e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      571  
   data-arc span      8003 days (21.91 yr)  
   first obs. used      1998-11-24  
   last obs. used      2020-10-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54854  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:00:28  

Additional Information
 Jupiter MOID = 2.65556 au 
 T_jup = 3.524 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.607238330035616E-15 -6.122029877569713E-15 -1.311099117257834E-13 -1.093170190979898E-14 -3.330729416246725E-14 -1.76952007923944E-15
q -6.122029877569713E-15 1.443076483845309E-14 3.078823870158995E-13 2.376236867749192E-14 8.299194624337902E-14 4.221705856209539E-15
tp -1.311099117257834E-13 3.078823870158995E-13 1.252583641904739E-9 -1.264954378667094E-12 3.862313172292974E-10 3.425331931054927E-14
node -1.093170190979898E-14 2.376236867749192E-14 -1.264954378667094E-12 6.198289822219691E-9 -6.188285992224812E-9 -1.552295338044566E-10
peri -3.330729416246725E-14 8.299194624337902E-14 3.862313172292974E-10 -6.188285992224812E-9 6.307339291833571E-9 1.550294028283428E-10
i -1.76952007923944E-15 4.221705856209539E-15 3.425331931054927E-14 -1.552295338044566E-10 1.550294028283428E-10 2.718500035064686E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.2   n/a MPO439695  

101462 (1998 WW7)          Discovered 1998-Nov-25 by Griffin, I. P. at Cocoa
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1998 WW7 = 2003 BB50 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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