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100208 (1994 JD2)
Classification: Main-belt Asteroid          SPK-ID: 2100208
[ 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 .0866773616491911 4.4385e-08  
a 3.079611693451886 2.4801e-08 au
q 2.812679076959478 1.4e-07 au
i 3.61860649519785 5.0794e-06 deg
node 190.9567718975134 8.6141e-05 deg
peri 28.77286018011431 9.3089e-05 deg
M 290.3918464312824 3.6699e-05 deg
tp 2459382.180506513306
(2021-Jun-16.68050651)		 0.0002035 TDB
period 1973.978266915861
5.40		 2.3846e-05
6.529e-08		 d
yr
n .1823728285329419 2.2031e-09 deg/d
Q 3.346544309944293 2.6951e-08 au
   Orbit Determination Parameters
   # obs. used (total)      397  
   data-arc span      9420 days (25.79 yr)  
   first obs. used      1994-04-19  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59012  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 01:02:10  

Additional Information
 Earth MOID = 1.80555 au 
 Jupiter MOID = 1.62266 au 
 T_jup = 3.219 
[ 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 15.5   n/a MPO417505  
diameter diameter 3.907 km 0.763 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.067   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100208 (1994 JD2)          Discovered 1994-May-01 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1994 JD2 = 1999 EQ9 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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