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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 ]

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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 .1933326478215484 7.9622e-08  
a 2.547226131224894 1.66e-08 au
q 2.054764158674947 2.0582e-07 au
i 10.1324790524903 6.9928e-06 deg
node 319.9275506233653 3.1455e-05 deg
peri 231.0026454776492 3.9463e-05 deg
M 143.4138698569054 3.2352e-05 deg
tp 2458408.954257391044
(2018-Oct-17.45425739)
0.00012951 TDB
period 1484.90845098669
4.07
1.4515e-05
3.974e-08
d
yr
n .2424391885983191 2.3699e-09 deg/d
Q 3.039688103774842 1.9809e-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 = 1.07331 au 
 Jupiter MOID = 2.00361 au 
 T_jup = 3.394 
[ 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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