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JPL Small-Body Database Browser
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312389 (2008 EG142)
Classification: Main-belt Asteroid          SPK-ID: 2312389
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 11 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0977537341052787 1.4309e-07  
a 2.983570703983651 7.3058e-08 au
q 2.691915526702134 4.759e-07 au
i 7.679694443048884 9.3699e-06 deg
node 314.9788628359542 5.1073e-05 deg
peri 64.76434026496709 7.1271e-05 deg
M 221.3859619200656 5.7293e-05 deg
tp 2459325.282406699871
(2021-Apr-20.78240670)
0.00031937 TDB
period 1882.361051060989
5.15
6.9139e-05
1.893e-07
d
yr
n .1912491760266112 7.0246e-09 deg/d
Q 3.275225881265168 8.0199e-08 au
  Orbit Determination Parameters
   # obs. used (total)      148  
   data-arc span      6368 days (17.43 yr)  
   first obs. used      2002-01-14  
   last obs. used      2019-06-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55046  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 06:01:49  

Additional Information
 Earth MOID = 1.70377 au 
 Jupiter MOID = 2.21565 au 
 T_jup = 3.238 
[ 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 16.0   n/a MPO437379  

312389 (2008 EG142)          Discovered 2008-Mar-12 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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