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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 37 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02399339952135396 5.8538e-08  
a 5.324672679522574 9.6431e-08 au
q 5.19691568060235 3.7062e-07 au
i 28.49449653906052 5.2125e-06 deg
node 209.4673640535242 9.3028e-06 deg
peri 205.0571737486331 0.00011654 deg
M 326.7616627952727 0.0001178 deg
tp 2459810.856913368998
(2022-Aug-19.35691337)		 0.0014689 TDB
period 4487.844499983719
12.29		 0.00012191
3.338e-07		 d
yr
n .08021668308723842 2.1791e-09 deg/d
Q 5.452429678442797 9.8745e-08 au
   Orbit Determination Parameters
   # obs. used (total)      1783  
   data-arc span      24598 days (67.35 yr)  
   first obs. used      1954-04-03  
   last obs. used      2021-08-07  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47487  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Aug-25 21:28:10  

Additional Information
 Earth MOID = 4.21142 au 
 Jupiter MOID = .00790313 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 11.14   n/a E2021B10  
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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