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27679 (1981 EA5)
Classification: Main-belt Asteroid          SPK-ID: 2027679
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1572258365612181 3.7702e-08  
a 2.738454260360736 1.6861e-08 au
q 2.307898498390888 1.0659e-07 au
i 8.698413126883032 4.2652e-06 deg
node 256.7091410063372 3.7302e-05 deg
peri 168.5581316562009 4.1878e-05 deg
M 330.7740935044513 2.0836e-05 deg
tp 2459134.876137541140
(2020-Oct-12.37613754)
9.6366e-05 TDB
period 1655.22357782738
4.53
1.5287e-05
4.185e-08
d
yr
n .2174932769339415 2.0087e-09 deg/d
Q 3.169010022330584 1.9512e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1097  
   data-arc span      14584 days (39.93 yr)  
   first obs. used      1979-11-26  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53403  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 01:08:23  

Additional Information
 Earth MOID = 1.32243 au 
 Jupiter MOID = 2.13722 au 
 T_jup = 3.316 
[ 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 14.4   n/a MPO358888  
diameter diameter 3.561 km 1.146 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.319   0.160 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

27679 (1981 EA5)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20010902/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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