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JPL Small-Body Database Browser
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212140 (2005 EM260)
Classification: Main-belt Asteroid          SPK-ID: 2212140
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1450220359923385 4.0844e-08  
a 2.553912039750386 1.6827e-08 au
q 2.183538516000439 1.0284e-07 au
i 2.397366150129652 5.8323e-06 deg
node 108.1387097447318 0.00019491 deg
peri 164.9719075250786 0.00019755 deg
M 201.1492847590117 3.4325e-05 deg
tp 2459658.300204179837
(2022-Mar-19.80020418)
0.00014373 TDB
period 1490.758622934028
4.08
1.4733e-05
4.034e-08
d
yr
n .2414877864610087 2.3867e-09 deg/d
Q 2.924285563500332 1.9268e-08 au
  Orbit Determination Parameters
   # obs. used (total)      228  
   data-arc span      7295 days (19.97 yr)  
   first obs. used      1999-12-16  
   last obs. used      2019-12-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6283  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-14 15:04:25  

Additional Information
 Earth MOID = 1.16734 au 
 Jupiter MOID = 2.17531 au 
 T_jup = 3.423 
[ 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 16.9   n/a MPO454522  
diameter diameter 2.405 km 0.459 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.044   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212140 (2005 EM260)          Discovered 2005-Mar-11 by Spacewatch at Kitt Peak
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10

[ show close-approach data ]
Alternate Designations
 2005 EM260 = 2002 UE66 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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