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102873 (1999 WK11)
Classification: Amor [NEO]          SPK-ID: 2102873
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 94 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4672013872056359 5.6029e-08  
a 2.132013269333193 2.033e-08 au
q 1.135933712359902 1.2663e-07 au
i 7.462567738603137 6.5542e-06 deg
node 72.60863320811458 5.4359e-05 deg
peri 220.4109557243449 5.6626e-05 deg
M 350.5437019748796 2.8242e-05 deg
tp 2459230.367710427685
(2021-Jan-15.86771043)		 8.9616e-05 TDB
period 1137.05973790201
3.11		 1.6264e-05
4.453e-08		 d
yr
n .3166060568323669 4.5285e-09 deg/d
Q 3.128092826306484 2.9828e-08 au
   Orbit Determination Parameters
   # obs. used (total)      309  
   data-arc span      14418 days (39.47 yr)  
   first obs. used      1980-09-30  
   last obs. used      2020-03-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64996  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Mar-23 07:17:11  

Additional Information
 Earth MOID = .142047 au 
 Jupiter MOID = 2.11614 au 
 T_jup = 3.563 
[ 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 17.46   n/a E2021B55  
rotation period rot_per 2.40639 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List:
[Skiff, B.A.; McLelland, K.P.; Sanborn, J.; Pravec, P.; Koehn, B.W. (2019). Minor Planet Bull. 46, 458-503.]

102873 (1999 WK11)          Discovered 1999-Nov-30 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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