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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1630310491184486 3.662e-08  
a 2.748004380888175 1.0627e-08 au
q 2.299994343689883 1.029e-07 au
i 8.610044880384866 4.3465e-06 deg
node 173.6940051619848 2.287e-05 deg
peri 198.8637840644319 2.5524e-05 deg
M 21.1999278847275 1.104e-05 deg
tp 2458902.515712081785
(2020-Feb-23.01571208)
5.0917e-05 TDB
period 1663.889794453925
4.56
9.6521e-06
2.643e-08
d
yr
n .2163604832483206 1.2551e-09 deg/d
Q 3.196014418086467 1.236e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1837  
   data-arc span      14210 days (38.90 yr)  
   first obs. used      1981-02-09  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52756  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 21:05:02  

Additional Information
 Earth MOID = 1.30158 au 
 Jupiter MOID = 2.26862 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 13.9   n/a MPO492916  
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-August); 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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