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187716 (2008 ED81)
Classification: Main-belt Asteroid          SPK-ID: 2187716
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2255487048775595 4.817e-08  
a 2.41080270792936 1.5269e-08 au
q 1.86704927944058 1.082e-07 au
i 5.495850232234021 5.7897e-06 deg
node 358.4277095594861 4.2198e-05 deg
peri 272.3069533543323 4.4432e-05 deg
M 83.53015020899836 1.4908e-05 deg
tp 2458883.264563077954
(2020-Feb-03.76456308)
5.4778e-05 TDB
period 1367.227965066364
3.74
1.299e-05
3.556e-08
d
yr
n .2633064925515372 2.5016e-09 deg/d
Q 2.954556136418141 1.8714e-08 au
  Orbit Determination Parameters
   # obs. used (total)      238  
   data-arc span      10072 days (27.58 yr)  
   first obs. used      1993-03-25  
   last obs. used      2020-10-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .55809  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:56:33  

Additional Information
 Earth MOID = .859264 au 
 Jupiter MOID = 2.19039 au 
 T_jup = 3.479 
[ 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 17.46   n/a E2021B55  

187716 (2008 ED81)          Discovered 2008-Mar-10 by Spacewatch at Kitt Peak
Reference: 20080520/Numbers.arcLast Updated: 2008-05-22
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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