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295031 (2008 EC81)
Classification: Main-belt Asteroid          SPK-ID: 2295031
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 10 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1123258150755734 5.6111e-08  
a 2.64848536597361 2.058e-08 au
q 2.350992088524896 1.5481e-07 au
i 1.596606629658225 5.3703e-06 deg
node 349.3078474815783 0.00022646 deg
peri 90.38429137905831 0.00022987 deg
M 29.77569410459614 3.2928e-05 deg
tp 2458870.287047408548
(2020-Jan-21.78704741)
0.0001443 TDB
period 1574.326454599315
4.31
1.835e-05
5.024e-08
d
yr
n .2286692184764336 2.6653e-09 deg/d
Q 2.945978643422325 2.2892e-08 au
  Orbit Determination Parameters
   # obs. used (total)      179  
   data-arc span      8146 days (22.30 yr)  
   first obs. used      1997-10-03  
   last obs. used      2020-01-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60726  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-25 16:36:58  

Additional Information
 Earth MOID = 1.3673 au 
 Jupiter MOID = 2.25866 au 
 T_jup = 3.382 
[ 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 17.3   n/a MPO455181  

295031 (2008 EC81)          Discovered 2008-Mar-10 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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