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JPL Small-Body Database Browser
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100198 (1994 EA1)
Classification: Main-belt Asteroid          SPK-ID: 2100198
[ 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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .245828922267859 4.0368e-08  
a 3.137005974119826 2.9386e-08 au
q 2.365839176354114 1.261e-07 au
i 15.80410416424471 8.6729e-06 deg
node 353.4616367928968 1.7284e-05 deg
peri 84.38601509865194 2.5504e-05 deg
M 313.0056124088925 1.7187e-05 deg
tp 2459265.420117628885
(2021-Feb-19.92011763)		 9.8572e-05 TDB
period 2029.417707838058
5.56		 2.8516e-05
7.807e-08		 d
yr
n .1773907848589281 2.4926e-09 deg/d
Q 3.908172771885538 3.661e-08 au
   Orbit Determination Parameters
   # obs. used (total)      439  
   data-arc span      8472 days (23.20 yr)  
   first obs. used      1994-03-09  
   last obs. used      2017-05-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53363  
   source      ORB  
   producer      Otto Matic  
   solution date      2018-Oct-04 03:56:33  

Additional Information
 Earth MOID = 1.44258 au 
 Jupiter MOID = 1.76237 au 
 T_jup = 3.107 
[ 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 14.7   n/a MPO453456  
diameter diameter 2.926 km 0.216 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.298   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

100198 (1994 EA1)          Discovered 1994-Mar-09 by Vagnozzi, A. at Stroncone
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 1994 EA1 = 2003 SL105 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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