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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 2459000.5 (2020-May-31.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08256097019629081 1.2058e-07  
a 3.124744387191841 6.3954e-08 au
q 2.866762458969868 4.0785e-07 au
i 21.93333862445835 1.3634e-05 deg
node 347.8112841276415 1.9211e-05 deg
peri 219.03466611 7.2445e-05 deg
M 26.16197922496917 7.6774e-05 deg
tp 2458853.881670346327
(2020-Jan-05.38167035)		 0.0004286 TDB
period 2017.530792354818
5.52		 6.1939e-05
1.696e-07		 d
yr
n .1784359383084388 5.4781e-09 deg/d
Q 3.382726315413814 6.9234e-08 au
   Orbit Determination Parameters
   # obs. used (total)      182  
   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      .61406  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 17:55:23  

Additional Information
 Earth MOID = 1.89263 au 
 Jupiter MOID = 1.65201 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 15.3   n/a MPO471208  

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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