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249355 (2008 YD30)
Classification: Main-belt Asteroid          SPK-ID: 2249355
[ 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 .1507022736738626 6.9125e-08  
a 3.120621404388968 2.9293e-08 au
q 2.650336663472229 2.1802e-07 au
i 6.386350171891291 7.5181e-06 deg
node 285.0920262845713 5.4924e-05 deg
peri 192.6080234342369 5.9106e-05 deg
M 22.96732771200184 1.9665e-05 deg
tp 2458872.039970375959
(2020-Jan-23.53997038)		 0.00010975 TDB
period 2013.53902572168
5.51		 2.8351e-05
7.762e-08		 d
yr
n .1787896809553871 2.5174e-09 deg/d
Q 3.590906145305707 3.3707e-08 au
   Orbit Determination Parameters
   # obs. used (total)      337  
   data-arc span      6709 days (18.37 yr)  
   first obs. used      2001-09-20  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58732  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 10:22:17  

Additional Information
 Earth MOID = 1.66704 au 
 Jupiter MOID = 1.52573 au 
 T_jup = 3.189 
[ 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 15.7   n/a MPO418331  
diameter diameter 4.330 km 0.840 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.034   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

249355 (2008 YD30)          Discovered 2008-Dec-30 by Lowe, A. at Mayhill
Reference: 20100824/Numbers.arcLast Updated: 2010-08-27

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