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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .191075277778572 4.6479e-08  
a 2.45107493091515 1.0095e-08 au
q 1.982735107634443 1.1572e-07 au
i 9.155183502672582 4.265e-06 deg
node 21.18407932964556 3.1435e-05 deg
peri 327.7834657763066 3.3839e-05 deg
M 100.0307875033922 1.4965e-05 deg
tp 2458811.038532345856
(2019-Nov-23.53853235)
5.6965e-05 TDB
period 1401.629756746014
3.84
8.659e-06
2.371e-08
d
yr
n .2568438621307287 1.5867e-09 deg/d
Q 2.919414754195857 1.2024e-08 au
  Orbit Determination Parameters
   # obs. used (total)      684  
   data-arc span      8034 days (22.00 yr)  
   first obs. used      1999-03-12  
   last obs. used      2021-03-10  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .52533  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 14:15:57  

Additional Information
 Earth MOID = .982373 au 
 Jupiter MOID = 2.52994 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 15.61   n/a MPCxxxxx  

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

[ hide close-approach data ]
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 21 CATAB v2.0f-lin.ifort 2021-Apr-13 14:15:59 2021-Apr-13 14:16
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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