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3801 Thrasymedes (1985 VS)
Classification: Jupiter Trojan          SPK-ID: 2003801
[ 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 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0235105336829283 5.9381e-08  
a 5.324254170869767 9.7584e-08 au
q 5.199078113849062 3.7544e-07 au
i 28.49552369185723 5.3157e-06 deg
node 209.4657118922954 9.6235e-06 deg
peri 204.2815314077185 0.00012132 deg
M 295.7044945744352 0.00012283 deg
tp 2459801.928366925384
(2022-Aug-10.42836693)		 0.0015322 TDB
period 4487.315406940112
12.29		 0.00012337
3.378e-07		 d
yr
n .08022614132343396 2.2056e-09 deg/d
Q 5.449430227890471 9.9878e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1666  
   data-arc span      24334 days (66.62 yr)  
   first obs. used      1954-04-03  
   last obs. used      2020-11-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48094  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Dec-18 02:14:12  

Additional Information
 Earth MOID = 4.21355 au 
 Jupiter MOID = .00784357 au 
 T_jup = 2.755 
[ 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 11.1   n/a MPO452217  
diameter diameter 34.285 km 0.417 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 20.270 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Ryan, E.L.; Sharkey, B.N.L.; Woodward, C.E. (2017) Astron. J. 153, A116.]
[Szabo, Gy.M.; Pal, A.; Kiss, Cs.; Kiss, L.L.; et al. (2017) Astron. Astrophys. 599, A44.]
geometric albedo albedo 0.066   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

3801 Thrasymedes (1985 VS)          Discovered 1985-Nov-06 by SPACEWATCH at Kitt Peak
Reference: DISCOVERY.DBLast Updated: 2003-08-29
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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