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249204 (2008 DN39)
Classification: Main-belt Asteroid          SPK-ID: 2249204
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .205722749149592 4.032e-08  
a 2.345312910623173 1.4031e-08 au
q 1.862828691033742 9.5984e-08 au
i 4.287777084956087 6.3838e-06 deg
node 345.3560659149583 6.1146e-05 deg
peri 92.18879664761479 6.4253e-05 deg
M 225.070618398222 1.9274e-05 deg
tp 2459492.203893809411
(2021-Oct-04.70389381)
7.2866e-05 TDB
period 1311.896635632807
3.59
1.1773e-05
3.223e-08
d
yr
n .2744118631162967 2.4626e-09 deg/d
Q 2.827797130212603 1.6918e-08 au
  Orbit Determination Parameters
   # obs. used (total)      380  
   data-arc span      7174 days (19.64 yr)  
   first obs. used      1999-10-09  
   last obs. used      2019-05-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54151  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:20:35  

Additional Information
 Earth MOID = .88408 au 
 Jupiter MOID = 2.44312 au 
 T_jup = 3.529 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 17.1   n/a MPO433633  
diameter diameter 2.879 km 0.635 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  
geometric albedo albedo 0.031   0.019 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)  

249204 (2008 DN39)          Discovered 2008-Feb-27 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

Alternate Designations
 2008 DN39 = 1999 TQ182 = 2006 QS86 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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