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249205 (2008 DT39)
Classification: Main-belt Asteroid          SPK-ID: 2249205
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01913874418552729 4.2731e-08  
a 2.765605801677832 2.5426e-08 au
q 2.71267557972151 1.1911e-07 au
i 3.883298867895233 8.2134e-06 deg
node 350.9447117303436 6.8275e-05 deg
peri 245.3483954821563 0.00022958 deg
M 182.1729811861196 0.00022083 deg
tp 2459830.310814185968
(2022-Sep-07.81081419)
0.0010329 TDB
period 1679.90159819083
4.60
2.3167e-05
6.343e-08
d
yr
n .2142982662720852 2.9553e-09 deg/d
Q 2.818536023634154 2.5913e-08 au
  Orbit Determination Parameters
   # obs. used (total)      295  
   data-arc span      8445 days (23.12 yr)  
   first obs. used      1996-09-17  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58959  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:46:55  

Additional Information
 Earth MOID = 1.70356 au 
 Jupiter MOID = 2.15799 au 
 T_jup = 3.336 
[ 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 16.1   n/a MPO503175  
diameter diameter 4.043 km 0.264 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.043   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249205 (2008 DT39)          Discovered 2008-Feb-27 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

[ show close-approach data ]
Alternate Designations
 2008 DT39 = 2005 QM30 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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