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469896 (2005 WC1)
Classification: Apollo [NEO, PHA]          SPK-ID: 2469896
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4863872261607384 1.7641e-07  
a 1.400509640948837 1.1297e-08 au
q .7193196414763604 2.4619e-07 au
i 19.98513030625241 1.9643e-05 deg
node 265.0161654327245 3.366e-06 deg
peri 256.7338421991697 3.275e-05 deg
M 353.1132211499102 3.7116e-05 deg
tp 2458612.080870822378
(2019-May-08.58087082)
6.2554e-05 TDB
period 605.3793198254865
1.66
7.3248e-06
2.005e-08
d
yr
n .5946684800924116 7.1952e-09 deg/d
Q 2.081699640421313 1.6792e-08 au
  Orbit Determination Parameters
   # obs. used (total)      209  
   # delay obs. used      1  
   # Doppler obs. used      4  
   data-arc span      3886 days (10.64 yr)  
   first obs. used      2005-11-21  
   last obs. used      2016-07-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .35231  
   source      ORB  
   producer      Otto Matic  
   solution date      2017-Apr-06 09:19:15  

Additional Information
 Earth MOID = .0139143 au 
 Jupiter MOID = 3.12706 au 
 T_jup = 4.567 
[ 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 20.7   n/a MPO264947  
rotation period rot_per 2.582 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Higley, S.; Hardersen, P.; Dyvig, R. (2008) Minor Planet Bull. 35, 175-177.]
[Miles, R. (2008) J. Brit. Astron. Assoc. 118, 187-198.]
[Lawrence, K.J.; Benner, L.A.M.; Brozovic, M.; Ostro, S.J.; et al. (2018) Icarus 300, 12-20.]

469896 (2005 WC1)          Discovered 2005-Nov-21 by LINEAR at Socorro
Reference: Last Updated: 2016-08-22

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