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JPL Small-Body Database Browser
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249404 (2009 CE20)
Classification: Main-belt Asteroid          SPK-ID: 2249404
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03090744207826103 7.8541e-08  
a 3.116556858003588 5.2717e-08 au
q 3.020232057431235 2.5486e-07 au
i 7.067349796092088 7.6329e-06 deg
node 296.5726911474907 8.7222e-05 deg
peri 191.4414486215699 0.00020234 deg
M 316.318388484489 0.00018107 deg
tp 2458844.341241013896
(2019-Dec-26.84124101)
0.0010108 TDB
period 2009.606416050643
5.50
5.099e-05
1.396e-07
d
yr
n .1791395554496119 4.5453e-09 deg/d
Q 3.212881658575941 5.4347e-08 au
  Orbit Determination Parameters
   # obs. used (total)      134  
   data-arc span      8037 days (22.00 yr)  
   first obs. used      1996-12-08  
   last obs. used      2018-12-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52676  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:49:24  

Additional Information
 Earth MOID = 2.03618 au 
 Jupiter MOID = 1.84249 au 
 T_jup = 3.205 
[ 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 15.9   n/a MPO418331  
diameter diameter 4.568 km 0.610 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.037   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249404 (2009 CE20)          Discovered 2009-Feb-01 by Spacewatch at Kitt Peak
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2009 CE20 = 2006 RW24 = 2007 VK287 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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