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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1356209998767773 3.7739e-08  
a 2.731649422635203 1.4272e-08 au
q 2.361180396624595 1.0737e-07 au
i 6.196101774257684 3.8405e-06 deg
node 98.91852454158168 4.1588e-05 deg
peri 344.5177071618576 4.551e-05 deg
M 337.0541363498118 1.8512e-05 deg
tp 2459105.608485187715
(2020-Sep-13.10848519)
8.5148e-05 TDB
period 1649.057766769522
4.51
1.2923e-05
3.538e-08
d
yr
n .218306482195123 1.7108e-09 deg/d
Q 3.10211844864581 1.6207e-08 au
  Orbit Determination Parameters
   # obs. used (total)      793  
   data-arc span      8090 days (22.15 yr)  
   first obs. used      1997-11-29  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57715  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 20:33:48  

Additional Information
 Earth MOID = 1.37797 au 
 Jupiter MOID = 2.10983 au 
 T_jup = 3.332 
[ 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 15.1   n/a MPO453286  

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

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