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8333 Medina (1982 VF)
Classification: Main-belt Asteroid          SPK-ID: 2008333
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

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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 38 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1061413741387085 4.3535e-08  
a 2.740037068769939 1.2601e-08 au
q 2.449205769099699 1.1659e-07 au
i 8.654547635971115 4.0829e-06 deg
node 11.76859429960455 2.7505e-05 deg
peri 310.8898324418998 3.4511e-05 deg
M 169.1730430734579 2.3688e-05 deg
tp 2458221.994392846102
(2018-Apr-13.49439285)
0.0001074 TDB
period 1656.65884755474
4.54
1.1428e-05
3.129e-08
d
yr
n .2173048485699798 1.499e-09 deg/d
Q 3.030868368440179 1.3938e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2256  
   data-arc span      13905 days (38.07 yr)  
   first obs. used      1982-10-22  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .43776  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:34:39  

Additional Information
 Earth MOID = 1.44804 au 
 Jupiter MOID = 2.31637 au 
 T_jup = 3.326 
[ 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 12.9   n/a MPO452287  
SMASSII spectral type spec_B Sq   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002)

8333 Medina           Discovered 1982 Nov. 7 by A. Mrkos at Klet.
Francisco Medina (b. 1952) co-led at ESA an international life science and plant biology project on the ISS. This lead to discoveries on multiple light sensory systems in plants, which set the stage for upcoming missions addressing the use of plants in bio-regenerative life support systems for future manned missions.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: MPC batch dated 2020-11-17Last Updated: 2020-12-17

Alternate Designations
 1982 VF = 1995 QW 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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