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JPL Small-Body Database Browser
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327 Columbia
Classification: Main-belt Asteroid          SPK-ID: 2000327
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0609391115864014 3.9623e-08  
a 2.77597758748074 1.0504e-08 au
q 2.606811979515902 1.1051e-07 au
i 7.141161268430313 4.7362e-06 deg
node 354.77301735 3.2033e-05 deg
peri 307.0499075164486 4.9304e-05 deg
M 65.55109400659231 3.8372e-05 deg
tp 2458292.890457765704
(2018-Jun-23.39045777)
0.00018002 TDB
period 1689.360595464809
4.63
9.5888e-06
2.625e-08
d
yr
n .2130983763717715 1.2096e-09 deg/d
Q 2.945143195445578 1.1144e-08 au
  Orbit Determination Parameters
   # obs. used (total)      3537  
   data-arc span      46535 days (127.41 yr)  
   first obs. used      1892-03-23  
   last obs. used      2019-08-20  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .40398  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-23 19:07:39  

Additional Information
 Earth MOID = 1.59872 au 
 Jupiter MOID = 2.22617 au 
 T_jup = 3.321 
[ 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 9.9   n/a MPO416705  
diameter diameter 30.291 km 4.049 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
rotation period rot_per 5.9320 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Published Reference List:
[Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Behrend, R. (2007) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html]
[Hanus, J.; Durech, J.; Oszkiewicz, D.A.; Behrend, R.; et al. (2016) Astron. Astrophys. 586, A108.]
geometric albedo albedo 0.214   0.339 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
SMASSII spectral type spec_B Sl   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

327 Columbia          Discovered 1892-Mar-22 by Charlois, A. at Nice
Reference: DISCOVERY.DBLast Updated: 2003-08-29

[ show close-approach data ]
Alternate Designations
 1934 JN 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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