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JPL Small-Body Database Browser
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305501 (2008 EM98)
Classification: Main-belt Asteroid          SPK-ID: 2305501
[ 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 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08253595566334493 1.2078e-07  
a 3.124729044744637 6.5554e-08 au
q 2.866826546847628 4.0907e-07 au
i 21.93260747193676 1.3698e-05 deg
node 347.8137137747539 1.9498e-05 deg
peri 218.8186644072657 7.248e-05 deg
M 314.9685124831636 7.6149e-05 deg
tp 2458852.865954349008
(2020-Jan-04.36595435)		 0.00042973 TDB
period 2017.515933305005
5.52		 6.3489e-05
1.738e-07		 d
yr
n .1784372524931012 5.6152e-09 deg/d
Q 3.382631542641647 7.0965e-08 au
   Orbit Determination Parameters
   # obs. used (total)      174  
   data-arc span      5883 days (16.11 yr)  
   first obs. used      2003-03-30  
   last obs. used      2019-05-08  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .62733  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 09:08:18  

Additional Information
 Earth MOID = 1.89286 au 
 Jupiter MOID = 1.65297 au 
 T_jup = 3.098 
[ 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 15.2   n/a MPO433969  

305501 (2008 EM98)          Discovered 2008-Mar-03 by CSS at Catalina
Reference: 20111110/Numbers.arcLast Updated: 2011-11-14

[ show close-approach data ]
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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