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85538 (1997 WW34)
Classification: Main-belt Asteroid          SPK-ID: 2085538
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1356210071676723 3.6696e-08  
a 2.731649418434976 1.3409e-08 au
q 2.361180373077838 1.0358e-07 au
i 6.19610176418922 3.8379e-06 deg
node 98.91852783352233 4.0282e-05 deg
peri 344.5177005287436 4.4198e-05 deg
M 337.0541411724981 1.7676e-05 deg
tp 2459105.608462853934
(2020-Sep-13.10846285)
8.1248e-05 TDB
period 1649.057762966097
4.51
1.2142e-05
3.324e-08
d
yr
n .2183064826986301 1.6074e-09 deg/d
Q 3.102118463792114 1.5227e-08 au
  Orbit Determination Parameters
   # obs. used (total)      811  
   data-arc span      8367 days (22.91 yr)  
   first obs. used      1997-11-29  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57585  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:00:39  

Additional Information
 Earth MOID = 1.37797 au 
 Jupiter MOID = 2.10983 au 
 T_jup = 3.332 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457097.5 (2015-Mar-16.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1331801531698139 3.6423e-08  
q 2.369136826449161 1.0259e-07 au
tp 2457453.003999166718
(2016-Mar-05.50399917)
8.0173e-05 TDB
node 99.0465592871324 4.0363e-05 deg
peri 343.8738043886477 4.4489e-05 deg
i 6.188988639214322 3.8327e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      811  
   data-arc span      8367 days (22.91 yr)  
   first obs. used      1997-11-29  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57585  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:00:39  

Additional Information
 Jupiter MOID = 2.10983 au 
 T_jup = 3.332 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.326654132623475E-15 -3.713323683579918E-15 8.575120093486738E-14 -8.848851193740786E-15 8.427293654784207E-14 -5.493816561288871E-16
q -3.713323683579918E-15 1.052394193482088E-14 -2.266018951873069E-14 2.466355495209708E-14 -1.959166383428692E-13 1.853592385782655E-15
tp 8.575120093486738E-14 -2.266018951873069E-14 6.42770031879131E-9 -7.166396701580248E-12 1.515076493293081E-9 3.018454109330146E-12
node -8.848851193740786E-15 2.466355495209708E-14 -7.166396701580248E-12 1.629140741435943E-9 -1.621365845345939E-9 7.837796254957116E-12
peri 8.427293654784207E-14 -1.959166383428692E-13 1.515076493293081E-9 -1.621365845345939E-9 1.979277463557435E-9 -7.134534609826948E-12
i -5.493816561288871E-16 1.853592385782655E-15 3.018454109330146E-12 7.837796254957116E-12 -7.134534609826948E-12 1.4689444281912E-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 15.1   n/a MPO453286  

85538 (1997 WW34)          Discovered 1997-Nov-29 by LINEAR at Socorro
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

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