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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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1910012837650818 5.3465e-08  
a 2.450598731864444 1.1385e-08 au
q 1.982531228085254 1.3473e-07 au
i 9.155703096111989 5.4818e-06 deg
node 21.19041326840633 3.1599e-05 deg
peri 327.727473706392 3.4089e-05 deg
M 48.71206244558295 1.4805e-05 deg
tp 2458810.898944571699
(2019-Nov-23.39894457)
5.6993e-05 TDB
period 1401.221310028471
3.84
9.7646e-06
2.673e-08
d
yr
n .256918730412889 1.7904e-09 deg/d
Q 2.918666235643634 1.3559e-08 au
  Orbit Determination Parameters
   # obs. used (total)      542  
   data-arc span      7891 days (21.60 yr)  
   first obs. used      1999-03-12  
   last obs. used      2020-10-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57265  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 20:59:14  

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

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Close-Approach Data   ...sorted by Date/Time (TDB)
Date/Time (TDB) Time Uncertainty
(days_HH:MM)
Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified
2068-Jan-19 00:13 00:01 Juno 0.0233423662104854 0.0233244624996753 0.0233602728212726 7.7074583449901 7.70745827736781 2476399.508791564 1.3048020290682 982.68797028531 54.7614830471334 -24.7617750471509 26893.5717775317 T 18 CATAB v2.0f-lin.ifort 2020-Nov-12 20:59:17 2020-Nov-12 20:59
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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