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JPL Small-Body Database Browser
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249412 (2009 DH12)
Classification: Main-belt Asteroid          SPK-ID: 2249412
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 .2254133318345256 8.7246e-08  
a 3.120647880522104 6.6766e-08 au
q 2.417212244291266 2.8933e-07 au
i 26.05528254523899 1.4464e-05 deg
node 345.1676405640292 2.1111e-05 deg
peri 108.2218495980695 3.7631e-05 deg
M 342.3508882383945 3.4294e-05 deg
tp 2458699.215632115865
(2019-Aug-03.71563212)
0.00019362 TDB
period 2013.564650829704
5.51
6.462e-05
1.769e-07
d
yr
n .1787874056349069 5.7377e-09 deg/d
Q 3.824083516752942 8.1816e-08 au
  Orbit Determination Parameters
   # obs. used (total)      138  
   data-arc span      5852 days (16.02 yr)  
   first obs. used      2002-12-27  
   last obs. used      2019-01-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60812  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:50:13  

Additional Information
 Earth MOID = 1.55874 au 
 Jupiter MOID = 1.67682 au 
 T_jup = 3.023 
[ 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 15.4   n/a MPO418331  
diameter diameter 5.763 km 1.505 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.040   0.021 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249412 (2009 DH12)          Discovered 2009-Feb-20 by CSS at Catalina
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2009 DH12 = 2002 YM4 = 2007 TP420 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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