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85945 (1999 EB8)
Classification: Main-belt Asteroid          SPK-ID: 2085945
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1910012807872898 5.2379e-08  
a 2.450598732420652 1.1191e-08 au
q 1.982531235832598 1.3179e-07 au
i 9.155702970728195 5.3477e-06 deg
node 21.19041347720579 3.1535e-05 deg
peri 327.727473285165 3.4023e-05 deg
M 48.71206235840184 1.4802e-05 deg
tp 2458810.898944846482
(2019-Nov-23.39894485)
5.6984e-05 TDB
period 1401.22131050552
3.84
9.5981e-06
2.628e-08
d
yr
n .2569187303254206 1.7598e-09 deg/d
Q 2.918666229008705 1.3328e-08 au
  Orbit Determination Parameters
   # obs. used (total)      546  
   data-arc span      7905 days (21.64 yr)  
   first obs. used      1999-03-12  
   last obs. used      2020-11-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5711  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 04:17:39  

Additional Information
 Earth MOID = .983883 au 
 Jupiter MOID = 2.52989 au 
 T_jup = 3.453 
[ 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 15.5   n/a MPO436376  

85945 (1999 EB8)          Discovered 1999-Mar-12 by Spacewatch at Kitt Peak
Reference: 20040830/Numbers.arcLast Updated: 2004-09-06

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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