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85521 (1997 WW2)
Classification: Main-belt Asteroid          SPK-ID: 2085521
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2342908020688191 3.7321e-08  
a 2.351856494071102 9.6665e-09 au
q 1.800838149724423 8.54e-08 au
i 1.285013485688845 3.8745e-06 deg
node 328.0568549828342 0.00019352 deg
peri 49.2182542331072 0.00019375 deg
M 229.4536722862537 1.2812e-05 deg
tp 2459874.223728531623
(2022-Oct-21.72372853)
4.9083e-05 TDB
period 1317.390885544422
3.61
8.1221e-06
2.224e-08
d
yr
n .2732674136053608 1.6848e-09 deg/d
Q 2.902874838417781 1.1931e-08 au
  Orbit Determination Parameters
   # obs. used (total)      627  
   data-arc span      10137 days (27.75 yr)  
   first obs. used      1993-08-13  
   last obs. used      2021-05-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5645  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-08 23:26:20  

Additional Information
 Earth MOID = .802067 au 
 Jupiter MOID = 2.56583 au 
 T_jup = 3.519 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.45   n/a E2021B10  

85521 (1997 WW2)          Discovered 1997-Nov-23 by Kobayashi, T. at Oizumi
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

Alternate Designations
 1997 WW2 = 2002 CZ14 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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