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5969 Ryuichiro (1991 FT)
Classification: Main-belt Asteroid          SPK-ID: 2005969
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.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1242848524407159 3.2092e-08  
a 2.323552810873271 7.6153e-09 au
q 2.034770392635676 7.6113e-08 au
i 7.45595794731909 4.2631e-06 deg
node 4.749885796412358 2.528e-05 deg
peri 291.2578662731466 3.0302e-05 deg
M 353.2654204288001 1.7513e-05 deg
tp 2459024.701107255827
(2020-Jun-24.20110726)
6.2968e-05 TDB
period 1293.681145198125
3.54
6.3599e-06
1.741e-08
d
yr
n .2782756797038012 1.368e-09 deg/d
Q 2.612335229110867 8.5618e-09 au
  Orbit Determination Parameters
   # obs. used (total)      2215  
   data-arc span      12659 days (34.66 yr)  
   first obs. used      1985-10-20  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .46706  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 16:25:43  

Additional Information
 Earth MOID = 1.03353 au 
 Jupiter MOID = 2.59532 au 
 T_jup = 3.554 
[ 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 13.6   n/a MPO384808  

5969 Ryuichiro (1991 FT)          Discovered 1991-Mar-17 by Seki, T. at Geisei
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1991 FT = 1985 UG = 1992 SL12 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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