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5652 Amphimachus (1992 HS3)
Classification: Jupiter Trojan          SPK-ID: 2005652
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 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07673916016826249 4.9552e-08  
a 5.209488340862008 8.0806e-08 au
q 4.809716580677902 3.0513e-07 au
i 1.89901029421882 4.8413e-06 deg
node 281.625592206196 0.00015451 deg
peri 108.2999332958717 0.00015827 deg
M 328.8713015161033 3.5655e-05 deg
tp 2459376.034200079160
(2021-Jun-10.53420008)
0.00043206 TDB
period 4343.012031114456
11.89
0.00010105
2.767e-07
d
yr
n .08289178050184233 1.9286e-09 deg/d
Q 5.609260101046114 8.7007e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2033  
   data-arc span      23637 days (64.71 yr)  
   first obs. used      1955-04-20  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49824  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 20:07:40  

Additional Information
 Earth MOID = 3.81564 au 
 Jupiter MOID = .0944017 au 
 T_jup = 2.993 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456378.5 (2013-Mar-27.0) TDB
Reference: JPL 27 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07667059297313025 4.9592e-08  
q 4.80654455967201 3.0575e-07 au
tp 2455046.873973257976
(2009-Aug-03.37397326)
0.00042162 TDB
node 281.664918542378 0.00015472 deg
peri 108.8897224088005 0.00015847 deg
i 1.89745573417368 4.84e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      2033  
   data-arc span      23637 days (64.71 yr)  
   first obs. used      1955-04-20  
   last obs. used      2020-01-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49824  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-28 20:07:40  

Additional Information
 Jupiter MOID = .0944017 au 
 T_jup = 2.993 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.45937594786854E-15 -1.482388285544514E-14 -3.404297266285222E-12 3.554781877116543E-15 -3.369519324758431E-13 5.830891845351607E-17
q -1.482388285544514E-14 9.348095762310767E-14 1.702222167743411E-11 -1.133240515131273E-14 1.882534896917756E-12 8.518662608149241E-17
tp -3.404297266285222E-12 1.702222167743411E-11 1.777594582220962E-7 -4.051460727745957E-11 1.450354891073334E-8 -3.341274317580271E-13
node 3.554781877116543E-15 -1.133240515131273E-14 -4.051460727745957E-11 2.393819987725658E-8 -2.392770284906528E-8 1.395331919618538E-10
peri -3.369519324758431E-13 1.882534896917756E-12 1.450354891073334E-8 -2.392770284906528E-8 2.511293514264696E-8 -1.394682208442637E-10
i 5.830891845351607E-17 8.518662608149241E-17 -3.341274317580271E-13 1.395331919618538E-10 -1.394682208442637E-10 2.34257593652714E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 10.1   n/a MPO293481  
diameter diameter 53.921 km 0.486 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
rotation period rot_per 8.374 h n/a LCDB (Rev. 2019-August); 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 0.061   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

5652 Amphimachus (1992 HS3)          Discovered 1992-Apr-24 by Shoemaker, C. S. at Palomar
Reference: DISCOVERY.DBLast Updated: 2003-08-29

Alternate Designations
 1992 HS3 = 1973 UE6 = 1985 SC5 = 1985 VX5 = 1991 FN4 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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