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JPL Small-Body Database Browser
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58931 Palmys (1998 MK47)
Classification: Jupiter Trojan          SPK-ID: 2058931
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1001325102335426 6.3548e-08  
a 5.260604808376814 1.3892e-07 au
q 4.733847243567399 4.0133e-07 au
i 16.40992795992269 6.539e-06 deg
node 119.568524135759 2.1523e-05 deg
peri 134.1339115000468 4.3937e-05 deg
M 326.1367673469668 4.4501e-05 deg
tp 2459415.050894767420
(2021-Jul-19.55089477)
0.00055189 TDB
period 4407.090239888952
12.07
0.00017457
4.779e-07
d
yr
n .08168655062735251 3.2357e-09 deg/d
Q 5.787362373186229 1.5283e-07 au
  Orbit Determination Parameters
   # obs. used (total)      781  
   data-arc span      9601 days (26.29 yr)  
   first obs. used      1993-01-21  
   last obs. used      2019-05-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55233  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 05:14:06  

Additional Information
 Earth MOID = 3.74196 au 
 Jupiter MOID = .219877 au 
 T_jup = 2.908 
[ 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 11.6   n/a MPO319771  
diameter diameter 27.753 km 0.623 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 11.33218 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 sidereal period (not synodic); Result based on less than full coverage, so that the period may be wrong by 30 percent or so.
Published Reference List:
[Durech, J.; Hanus, J.; Ali-Lagoa, V. (2018) Astron. Astrophys. 617, A57.]
geometric albedo albedo 0.058   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

58931 Palmys           Discovered 1998 June 28 by E. W. Elst at the European Southern Observatory.
Palmys, a Trojan fighting for the relief of the city of Troy set off for the centre of the battlefield, with a group of other Trojans from Ascania.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120406/MPCPages.arcLast Updated: 2012-04-09

Alternate Designations
 1998 MK47 = 2000 SZ348 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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