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212944 (2008 YE51)
Classification: Main-belt Asteroid          SPK-ID: 2212944
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1143216329598709 8.9139e-08  
a 2.601159305081607 3.5211e-08 au
q 2.303790525735915 2.369e-07 au
i 10.64040828091429 9.5713e-06 deg
node 305.092634706663 2.6756e-05 deg
peri 159.8745210410342 3.8154e-05 deg
M 266.7579845557543 3.4345e-05 deg
tp 2459397.378894897863
(2021-Jul-01.87889490)
0.00015205 TDB
period 1532.317823488748
4.20
3.1114e-05
8.519e-08
d
yr
n .234938205691793 4.7704e-09 deg/d
Q 2.898528084427299 3.9237e-08 au
  Orbit Determination Parameters
   # obs. used (total)      206  
   data-arc span      5293 days (14.49 yr)  
   first obs. used      2003-09-29  
   last obs. used      2018-03-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56156  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 08:31:11  

Additional Information
 Earth MOID = 1.32336 au 
 Jupiter MOID = 2.21839 au 
 T_jup = 3.381 
[ 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 16.3   n/a MPO440127  
diameter diameter 3.838 km 0.735 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.036   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

212944 (2008 YE51)          Discovered 2008-Dec-29 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20090409/Numbers.arcLast Updated: 2009-04-10
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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