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14806 (1981 EV25)
Classification: Main-belt Asteroid          SPK-ID: 2014806
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1630774614832728 3.6729e-08  
a 2.748730875206234 1.0814e-08 au
q 2.300474821776907 1.0309e-07 au
i 8.609093635841189 4.3493e-06 deg
node 173.703749875107 2.3028e-05 deg
peri 198.719794815475 2.5656e-05 deg
M 294.7771039993916 1.097e-05 deg
tp 2458902.074304847905
(2020-Feb-22.57430485)
5.105e-05 TDB
period 1664.549665875507
4.56
9.8226e-06
2.689e-08
d
yr
n .2162747122421546 1.2763e-09 deg/d
Q 3.196986928635562 1.2577e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1780  
   data-arc span      14144 days (38.72 yr)  
   first obs. used      1981-02-09  
   last obs. used      2019-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52739  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 03:52:00  

Additional Information
 Earth MOID = 1.30117 au 
 Jupiter MOID = 2.26417 au 
 T_jup = 3.311 
[ 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 13.8   n/a MPO435839  
diameter diameter 4.117 km 0.134 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
rotation period rot_per 3.373 h n/a LCDB (Rev. 2019-January); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Waszczak, A.; Chang, C.-K.; Ofeck, E.O.; Laher, F.; et al. (2015) Astron. J. 150, A75.]
geometric albedo albedo 0.378   0.113 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

14806 (1981 EV25)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20000523/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1981 EV25 = 1999 EJ1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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