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JPL Small-Body Database Browser
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300334 Antonalexander (2007 RF18)
Classification: Main-belt Asteroid          SPK-ID: 2300334
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2406523189316861 5.4709e-08  
a 2.420125444575555 2.3334e-08 au
q 1.83771664423287 1.3981e-07 au
i 8.240685952110733 6.4446e-06 deg
node 277.4484709913356 4.9688e-05 deg
peri 8.116877492834895 5.2158e-05 deg
M 64.98397767863251 1.6493e-05 deg
tp 2458352.267275597116
(2018-Aug-21.76727560)
6.182e-05 TDB
period 1375.166371424231
3.77
1.9888e-05
5.445e-08
d
yr
n .261786506331707 3.786e-09 deg/d
Q 3.002534244918241 2.8949e-08 au
  Orbit Determination Parameters
   # obs. used (total)      244  
   data-arc span      5988 days (16.39 yr)  
   first obs. used      2002-03-12  
   last obs. used      2018-08-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59518  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-31 04:35:51  

Additional Information
 Earth MOID = .82107 au 
 Jupiter MOID = 2.16877 au 
 T_jup = 3.460 
[ 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 16.3   n/a MPO455217  

300334 Antonalexander           Discovered 2007 Sept. 12 by M. Koenig at Rimbach.
Anton Alexander (b. 2010) is the second son of the discoverer, Michael Koenig, and Agathe Schmid-Koenig.
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 2018-05-29Last Updated: 2018-07-10

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