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JPL Small-Body Database Browser
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243440 Colonia (2009 FD2)
Classification: Main-belt Asteroid          SPK-ID: 2243440
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 .2106355887036913 6.1032e-08  
a 2.804284877846563 3.0371e-08 au
q 2.213602681708493 1.7893e-07 au
i 3.418989438442764 5.8849e-06 deg
node 141.1131790465506 0.00012979 deg
peri 122.6303210309955 0.000131 deg
M 353.990870306384 2.0045e-05 deg
tp 2458629.131275674403
(2019-May-25.63127567)
9.5762e-05 TDB
period 1715.266564097514
4.70
2.7865e-05
7.629e-08
d
yr
n .2098799146064004 3.4096e-09 deg/d
Q 3.394967073984632 3.6769e-08 au
  Orbit Determination Parameters
   # obs. used (total)      187  
   data-arc span      8354 days (22.87 yr)  
   first obs. used      1995-04-24  
   last obs. used      2018-03-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57784  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:32:54  

Additional Information
 Earth MOID = 1.19982 au 
 Jupiter MOID = 1.70075 au 
 T_jup = 3.288 
[ 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 16.7   n/a MPO433595  
diameter diameter 2.364 km 0.704 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.066   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243440 Colonia           Discovered 2009 Mar. 17 by S. Karge and E. Schwab at Taunus.
Colonia (Colonia Claudia Ara Agrippinensium) is the Roman name for Köln, Germany's fourth-largest city, founded in the year 38 BC by the Romans. It was the birthplace of Agrippina, sister of Caligula and mother of Nero. Köln's gothic cathedral is one of the world's largest churches and a world heritage site.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20110517/MPCPages.arcLast Updated: 2011-06-24

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