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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 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 32 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07693008206709964 3.1655e-08  
a 5.210023656491867 6.4212e-08 au
q 4.809216109026417 2.0174e-07 au
i 1.899038767614821 2.5547e-07 deg
node 281.627697786817 4.2819e-05 deg
peri 108.4499713305547 4.4722e-05 deg
M 345.3254363833238 1.4176e-05 deg
tp 2459377.560083340305
(2021-Jun-12.06008334)
0.0001709 TDB
period 4343.681465939738
11.89
8.0302e-05
2.199e-07
d
yr
n .08287900547562721 1.5322e-09 deg/d
Q 5.610831203957317 6.9152e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2573  
   data-arc span      24040 days (65.82 yr)  
   first obs. used      1955-04-20  
   last obs. used      2021-02-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .45718  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Mar-16 17:58:47  

Additional Information
 Earth MOID = 3.814 au 
 Jupiter MOID = .0957296 au 
 T_jup = 2.993 
[ 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 10.23   n/a E2021B10  
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. 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 0.061   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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