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312534 (2009 DH142)
Classification: Main-belt Asteroid          SPK-ID: 2312534
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1600470529761541 3.3086e-08  
a 2.591986008164894 2.6642e-08 au
q 2.177146286202677 8.6118e-08 au
i 9.302964724949305 7.6736e-06 deg
node 312.9594108442133 2.5335e-05 deg
peri 277.6691276756091 3.7276e-05 deg
M 214.6219255846131 2.8065e-05 deg
tp 2459616.022336493288
(2022-Feb-05.52233649)		 0.00012335 TDB
period 1524.219123335223
4.17		 2.35e-05
6.434e-08		 d
yr
n .2361865131387836 3.6415e-09 deg/d
Q 3.006825730127111 3.0906e-08 au
   Orbit Determination Parameters
   # obs. used (total)      297  
   data-arc span      8795 days (24.08 yr)  
   first obs. used      1995-12-26  
   last obs. used      2020-01-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50444  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-11 18:47:03  

Additional Information
 Earth MOID = 1.19032 au 
 Jupiter MOID = 2.10326 au 
 T_jup = 3.383 
[ 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 16.0   n/a MPO450244  
diameter diameter 3.673 km 0.590 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.052   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

312534 (2009 DH142)          Discovered 2009-Feb-27 by Siding Spring Survey at Siding Spring
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11

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