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46528 (1981 EB8)
Classification: Main-belt Asteroid          SPK-ID: 2046528
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1615228899068379 4.4255e-08  
a 2.460834101583437 1.0813e-08 au
q 2.063353065914383 1.0907e-07 au
i 7.624949994897575 4.7268e-06 deg
node 319.6081779774826 4.0805e-05 deg
peri 113.511742758832 4.3954e-05 deg
M 140.9435865622489 1.6596e-05 deg
tp 2458448.467369450555
(2018-Nov-25.96736945)
6.4001e-05 TDB
period 1410.009152208062
3.86
9.2935e-06
2.544e-08
d
yr
n .2553174916887903 1.6828e-09 deg/d
Q 2.85831513725249 1.256e-08 au
  Orbit Determination Parameters
   # obs. used (total)      947  
   data-arc span      14323 days (39.21 yr)  
   first obs. used      1981-02-09  
   last obs. used      2020-04-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51666  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 09:33:35  

Additional Information
 Earth MOID = 1.0922 au 
 Jupiter MOID = 2.41731 au 
 T_jup = 3.460 
[ 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 15.1   n/a MPO333224  
diameter diameter 2.909 km 0.572 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.275   0.151 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

46528 (1981 EB8)          Discovered 1981-Mar-01 by Bus, S. J. at Siding Spring
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EB8 = 1998 OH11 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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