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243290 (2008 DD31)
Classification: Main-belt Asteroid          SPK-ID: 2243290
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 13 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1100660140858678 7.2401e-08  
a 2.775435366291827 3.6372e-08 au
q 2.469954258171135 2.0553e-07 au
i 3.703943352009889 6.8362e-06 deg
node 294.3430062619334 0.00011713 deg
peri 25.33245210376528 0.00012139 deg
M 51.83685344183384 3.6512e-05 deg
tp 2458757.318107104258
(2019-Sep-30.81810710)
0.00016869 TDB
period 1688.865655024799
4.62
3.3199e-05
9.089e-08
d
yr
n .2131608271675782 4.1902e-09 deg/d
Q 3.080916474412518 4.0375e-08 au
  Orbit Determination Parameters
   # obs. used (total)      227  
   data-arc span      6044 days (16.55 yr)  
   first obs. used      2001-10-06  
   last obs. used      2018-04-24  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .64546  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 09:32:03  

Additional Information
 Earth MOID = 1.45745 au 
 Jupiter MOID = 2.18507 au 
 T_jup = 3.324 
[ 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 16.0   n/a MPO494332  
diameter diameter 3.074 km 0.131 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.082   0.029 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

243290 (2008 DD31)          Discovered 2008-Feb-27 by Spacewatch at Kitt Peak
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28

Alternate Designations
 2008 DD31 = 2006 VX150 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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