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JPL Small-Body Database Browser
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268115 Williamalbrecht (2004 TK9)
Classification: Main-belt Asteroid          SPK-ID: 2268115
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1412318812111938 1.7294e-07  
a 2.639940803747644 2.3839e-08 au
q 2.267096997748173 4.4602e-07 au
i 30.13011598754914 1.1525e-05 deg
node 11.79500320514691 1.084e-05 deg
peri 340.1357430378108 2.3223e-05 deg
M 152.4760425989463 2.7823e-05 deg
tp 2457936.926825889491
(2017-Jul-02.42682589)
0.0001164 TDB
period 1566.713948027361
4.29
2.1222e-05
5.81e-08
d
yr
n .2297802993668842 3.1124e-09 deg/d
Q 3.012784609747114 2.7206e-08 au
  Orbit Determination Parameters
   # obs. used (total)      358  
   data-arc span      6766 days (18.52 yr)  
   first obs. used      2000-09-26  
   last obs. used      2019-04-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58791  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 19:07:57  

Additional Information
 Earth MOID = 1.27505 au 
 Jupiter MOID = 2.46188 au 
 T_jup = 3.191 
[ 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 15.3   n/a MPO433740  
diameter diameter 2.473 km 0.386 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.240   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

268115 Williamalbrecht           Discovered 2004 Oct. 7 by W. R. Cooney Jr. and J. Gross at Sonoita.
William B. Albrecht (1917-2009) was an active amateur astronomer who made contributions to the study of variable stars, lunar occultations, solar astronomy and aurorae. Bill designed and fabricated instrumentation for amateur and professional observatories.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2014-01-16Last Updated: 2014-01-21

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