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13081 (1992 EW9)
Classification: Main-belt Asteroid          SPK-ID: 2013081
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1224865846593648 3.8254e-08  
a 2.588592115550746 1.2374e-08 au
q 2.271524308240775 9.7978e-08 au
i 15.1487393182819 4.0537e-06 deg
node 154.5857370836168 1.7688e-05 deg
peri 210.5734561739183 2.5856e-05 deg
M 331.4124241084583 2.1145e-05 deg
tp 2458721.300489111156
(2019-Aug-25.80048911)
8.973e-05 TDB
period 1521.226432244753
4.16
1.0908e-05
2.986e-08
d
yr
n .2366511601226759 1.6969e-09 deg/d
Q 2.905659922860716 1.389e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1779  
   data-arc span      17431 days (47.72 yr)  
   first obs. used      1971-01-27  
   last obs. used      2018-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .4943  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-30 17:08:12  

Additional Information
 Earth MOID = 1.27728 au 
 Jupiter MOID = 2.54505 au 
 T_jup = 3.361 
[ 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 12.6   n/a MPO358757  
diameter diameter 8.940 km 0.201 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.242   0.061 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

13081 (1992 EW9)          Discovered 1992-Mar-02 by UESAC at La Silla
Reference: 20000124/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1992 EW9 = 1971 BZ2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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