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15683 (1981 EX25)
Classification: Main-belt Asteroid          SPK-ID: 2015683
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1140400859926263 3.2445e-08  
a 2.37228068458308 9.3026e-09 au
q 2.101745591314578 7.6797e-08 au
i 4.08426769779412 4.4166e-06 deg
node 179.6250283274923 4.9103e-05 deg
peri 130.8983676904211 5.3008e-05 deg
M 196.6370443953985 2.037e-05 deg
tp 2459806.117780791426
(2022-Aug-14.61778079)
7.6285e-05 TDB
period 1334.588984865135
3.65
7.8501e-06
2.149e-08
d
yr
n .2697459697948722 1.5867e-09 deg/d
Q 2.64281577785158 1.0363e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1120  
   data-arc span      14587 days (39.94 yr)  
   first obs. used      1981-02-09  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54419  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 02:25:19  

Additional Information
 Earth MOID = 1.08827 au 
 Jupiter MOID = 2.57897 au 
 T_jup = 3.532 
[ 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 15.35   n/a E2021B10  
diameter diameter 2.982 km 1.027 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.165   0.098 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

15683 (1981 EX25)          Discovered 1981-Mar-02 by Bus, S. J. at Siding Spring
Reference: 20000726/Numbers.arcLast Updated: 2004-04-19

Alternate Designations
 1981 EX25 = 1992 FK3 = 1993 SQ4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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