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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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1910012305327357 5.725e-08  
a 2.450598739505482 1.2316e-08 au
q 1.982531364717963 1.4498e-07 au
i 9.155698490157606 5.8176e-06 deg
node 21.19041529901776 3.2256e-05 deg
peri 327.727458084799 3.4772e-05 deg
M 48.71206863046567 1.5437e-05 deg
tp 2458810.898919611622
(2019-Nov-23.39891961)
5.9362e-05 TDB
period 1401.221316582044
3.84
1.0563e-05
2.892e-08
d
yr
n .2569187292112691 1.9368e-09 deg/d
Q 2.918666114293 1.4669e-08 au
  Orbit Determination Parameters
   # obs. used (total)      520  
   data-arc span      7540 days (20.64 yr)  
   first obs. used      1999-03-12  
   last obs. used      2019-11-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56144  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 08:20:18  

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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