Skip Page Navigation
NASA JPL Caltech
NASA Logo - Jet Propulsion Laboratory + View the NASA Portal
+ Center for Near-Earth Object Studies
JPL Home Earth Solar System Stars & Galaxies Technology
JPL Solar System Dynamics
BODIES ORBITS EPHEMERIDES TOOLS PHYSICAL DATA DISCOVERY FAQ SITE MAP
IMPORTANT: The SSD Announcement email list is now available. Major changes are coming in the near future, including possible hostname and/or URL changes. To be notified of such changes, subscribe to this email list.

Please visit this page for more details.


JPL Small-Body Database Browser
Search: [ help ]  
3801 Thrasymedes (1985 VS)
Classification: Jupiter Trojan          SPK-ID: 2003801
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .02299790871698539 5.9965e-08  
a 5.32363369060116 1.0547e-07 au
q 5.201201248942047 3.805e-07 au
i 28.49590659030973 5.696e-06 deg
node 209.4643971903467 1.1237e-05 deg
peri 204.3628598044207 0.00014939 deg
M 263.4729399490056 0.00015292 deg
tp 2459803.476801342274
(2022-Aug-11.97680134)
0.0019148 TDB
period 4486.531012696654
12.28
0.00013333
3.65e-07
d
yr
n .08024016751053728 2.3845e-09 deg/d
Q 5.446066132260274 1.0789e-07 au
  Orbit Determination Parameters
   # obs. used (total)      1240  
   data-arc span      23989 days (65.68 yr)  
   first obs. used      1954-04-03  
   last obs. used      2019-12-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .53973  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-13 21:35:20  

Additional Information
 Earth MOID = 4.21497 au 
 Jupiter MOID = .00837374 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. 2019-January); 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 ]
ABOUT SSD CREDITS/AWARDS PRIVACY/COPYRIGHT GLOSSARY LINKS
FirstGov 2020-Jan-19 04:49 UT
(server date/time)  
NASA Home Page
Site Manager:   Ryan S. Park
Webmaster  Alan B. Chamberlin