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85534 (1997 WB26)
Classification: Main-belt Asteroid          SPK-ID: 2085534
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .189246821511003 3.2125e-08  
a 2.389220324990285 6.9543e-09 au
q 1.937067972596388 7.8891e-08 au
i .68048562747584 4.0481e-06 deg
node 336.1789830016581 0.00024998 deg
peri 65.41467157856169 0.00025022 deg
M 292.2161877540548 1.0028e-05 deg
tp 2458854.483917452149
(2020-Jan-05.98391745)
3.7714e-05 TDB
period 1348.909234420393
3.69
5.8894e-06
1.612e-08
d
yr
n .2668823007610938 1.1652e-09 deg/d
Q 2.841372677384182 8.2703e-09 au
  Orbit Determination Parameters
   # obs. used (total)      991  
   data-arc span      8064 days (22.08 yr)  
   first obs. used      1997-10-29  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52425  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 08:17:15  

Additional Information
 Earth MOID = .945015 au 
 Jupiter MOID = 2.56401 au 
 T_jup = 3.509 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457084.5 (2015-Mar-03.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .189667876062399 3.2209e-08  
q 1.936218655007942 7.9158e-08 au
tp 2457502.398886245791
(2016-Apr-23.89888625)
3.7113e-05 TDB
node 336.588166232702 0.0002487 deg
peri 64.43430460450575 0.00024894 deg
i .6828626112688054 4.0543e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      991  
   data-arc span      8064 days (22.08 yr)  
   first obs. used      1997-10-29  
   last obs. used      2019-11-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52425  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 08:17:15  

Additional Information
 Jupiter MOID = 2.56401 au 
 T_jup = 3.509 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.037393625693574E-15 -2.543972460402589E-15 -3.74206932547466E-13 1.374819569726872E-14 -8.647390400421365E-14 -2.168879457035397E-16
q -2.543972460402589E-15 6.265994067102877E-15 8.989193277492096E-13 -3.410264104855679E-14 2.051749093110934E-13 5.635986592351886E-16
tp -3.74206932547466E-13 8.989193277492096E-13 1.377395418699917E-9 -1.546304996857675E-11 4.13479268280128E-10 3.655246872823281E-13
node 1.374819569726872E-14 -3.410264104855679E-14 -1.546304996857675E-11 6.18511723836766E-8 -6.185006530571567E-8 1.276889129618718E-10
peri -8.647390400421365E-14 2.051749093110934E-13 4.13479268280128E-10 -6.185006530571567E-8 6.197139098711363E-8 -1.275919871836835E-10
i -2.168879457035397E-16 5.635986592351886E-16 3.655246872823281E-13 1.276889129618718E-10 -1.275919871836835E-10 1.643703836634075E-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 15.5   n/a MPO449531  

85534 (1997 WB26)          Discovered 1997-Nov-23 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Alternate Designations
 1997 WB26 = 2001 VE47 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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