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JPL Small-Body Database Browser
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312390 (2008 ER147)
Classification: Main-belt Asteroid          SPK-ID: 2312390
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 14 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03591087756038806 5.0327e-08  
a 2.760163659703579 2.9444e-08 au
q 2.661043760473331 1.419e-07 au
i 6.34259967677071 6.8407e-06 deg
node 172.2537438915179 4.523e-05 deg
peri 248.898439095312 0.00010517 deg
M 269.4737758756126 9.2879e-05 deg
tp 2459021.684696329589
(2020-Jun-21.18469633)		 0.00043175 TDB
period 1674.945488395827
4.59		 2.6801e-05
7.338e-08		 d
yr
n .2149323679451733 3.4392e-09 deg/d
Q 2.859283558933826 3.0501e-08 au
   Orbit Determination Parameters
   # obs. used (total)      186  
   data-arc span      6091 days (16.68 yr)  
   first obs. used      2003-02-22  
   last obs. used      2019-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58727  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 08:10:44  

Additional Information
 Earth MOID = 1.67977 au 
 Jupiter MOID = 2.25037 au 
 T_jup = 3.332 
[ 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 16.6   n/a MPO360575  

312390 (2008 ER147)          Discovered 2008-Mar-01 by Spacewatch at Kitt Peak
Reference: 20120109/Numbers.arcLast Updated: 2012-01-11
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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