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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 41 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4865936095644194 1.7618e-07  
a 1.400423594211333 1.118e-08 au
q .7189864225848628 2.4581e-07 au
i 19.98479081933549 1.9643e-05 deg
node 265.013197255601 3.3664e-06 deg
peri 256.7272034248172 3.2735e-05 deg
M 230.9884856233895 3.9959e-05 deg
tp 2459217.426958895573
(2021-Jan-02.92695890)
6.9781e-05 TDB
period 605.3235292970454
1.66
7.249e-06
1.985e-08
d
yr
n .5947232885826583 7.1221e-09 deg/d
Q 2.081860765837804 1.6621e-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 = .01411 au 
 Jupiter MOID = 3.12542 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-August); 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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