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65681 (1990 EO1)
Classification: Main-belt Asteroid          SPK-ID: 2065681
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1928698478953004 7.9668e-08  
a 2.549030573133074 1.6322e-08 au
q 2.057399434212428 2.0582e-07 au
i 10.12567665893684 6.9886e-06 deg
node 319.9485974067737 3.1481e-05 deg
peri 231.2103010452517 3.9515e-05 deg
M 46.28894189042289 3.1742e-05 deg
tp 2458409.366969316497
(2018-Oct-17.86696932)
0.00012987 TDB
period 1486.486582669056
4.07
1.4277e-05
3.909e-08
d
yr
n .2421818025115325 2.326e-09 deg/d
Q 3.04066171205372 1.9469e-08 au
  Orbit Determination Parameters
   # obs. used (total)      592  
   data-arc span      10244 days (28.05 yr)  
   first obs. used      1990-02-24  
   last obs. used      2018-03-13  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57052  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 01:53:41  

Additional Information
 Earth MOID = 1.07634 au 
 Jupiter MOID = 2.00431 au 
 T_jup = 3.393 
[ 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 15.3   n/a MPO280159  
diameter diameter 1.967 km 0.268 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.380   0.093 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

65681 (1990 EO1)          Discovered 1990-Mar-02 by Elst, E. W. at La Silla
Reference: 20030910/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1990 EO1 = 2002 AE122 = 2002 BJ7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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