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90965 (1997 WC23)
Classification: Main-belt Asteroid          SPK-ID: 2090965
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1142790616619179 4.3507e-08  
a 2.339670921426276 1.0177e-08 au
q 2.072295523928006 1.0224e-07 au
i 7.516808789711792 5.0309e-06 deg
node 33.67136947540219 3.5941e-05 deg
peri 7.949837631614697 4.2846e-05 deg
M 115.5551385123885 2.3681e-05 deg
tp 2458580.917511116107
(2019-Apr-07.41751112)
8.4977e-05 TDB
period 1307.165548349956
3.58
8.5286e-06
2.335e-08
d
yr
n .2754050552008738 1.7969e-09 deg/d
Q 2.607046318924545 1.134e-08 au
  Orbit Determination Parameters
   # obs. used (total)      815  
   data-arc span      8213 days (22.49 yr)  
   first obs. used      1997-11-02  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52719  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:36:35  

Additional Information
 Earth MOID = 1.0806 au 
 Jupiter MOID = 2.77843 au 
 T_jup = 3.545 
[ 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 15.6   n/a MPO359379  

90965 (1997 WC23)          Discovered 1997-Nov-25 by Spacewatch at Kitt Peak
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

[ show close-approach data ]
Alternate Designations
 1997 WC23 = 1999 GK43 = 2001 XW253 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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