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90956 (1997 WB3)
Classification: Main-belt Asteroid          SPK-ID: 2090956
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2377876178214376 5.0367e-08  
a 2.340352006066716 1.0429e-08 au
q 1.783845277680489 1.1803e-07 au
i 9.248513195961213 5.3719e-06 deg
node 81.30448539941781 4.1134e-05 deg
peri 325.5492711129097 4.354e-05 deg
M 223.9105727552289 1.7929e-05 deg
tp 2459890.858592945049
(2022-Nov-07.35859295)
6.7563e-05 TDB
period 1307.736369116473
3.58
8.7408e-06
2.393e-08
d
yr
n .2752848421912602 1.84e-09 deg/d
Q 2.896858734452943 1.2908e-08 au
  Orbit Determination Parameters
   # obs. used (total)      445  
   data-arc span      11141 days (30.50 yr)  
   first obs. used      1991-01-07  
   last obs. used      2021-07-09  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .57179  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 22:04:37  

Additional Information
 Earth MOID = .80236 au 
 Jupiter MOID = 2.50417 au 
 T_jup = 3.509 
[ 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 16.23   n/a MPO614063  

90956 (1997 WB3)          Discovered 1997-Nov-23 by Kobayashi, T. at Oizumi
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

Alternate Designations
 1997 WB3 = 2002 FY27 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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