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305769 (2009 DH40)
Classification: Main-belt Asteroid          SPK-ID: 2305769
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 .05791976765722098 5.6966e-08  
a 3.089328181253075 5.3404e-08 au
q 2.910395010777992 1.9403e-07 au
i 17.15257368754413 6.843e-06 deg
node 156.54285734 2.2342e-05 deg
peri 347.7827740797961 6.7048e-05 deg
M 323.1423580534941 6.3977e-05 deg
tp 2458803.557737107438
(2019-Nov-16.05773711)
0.00035374 TDB
period 1983.327784907512
5.43
5.1428e-05
1.408e-07
d
yr
n .1815131128296011 4.7066e-09 deg/d
Q 3.268261351728158 5.6498e-08 au
  Orbit Determination Parameters
   # obs. used (total)      224  
   data-arc span      4545 days (12.44 yr)  
   first obs. used      2006-08-18  
   last obs. used      2019-01-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60999  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 11:51:29  

Additional Information
 Earth MOID = 1.92358 au 
 Jupiter MOID = 1.7298 au 
 T_jup = 3.154 
[ 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 15.3   n/a MPO433970  
diameter diameter 4.033 km 1.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.109   0.033 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

305769 (2009 DH40)          Discovered 2009-Feb-23 by Kugel, F. at Chante-Perdrix
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

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