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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 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 34 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07708507646636822 3.1643e-08  
a 5.210754504805073 6.4054e-08 au
q 4.809083095354701 2.016e-07 au
i 1.899017458009381 2.5549e-07 deg
node 281.6310938598205 4.2817e-05 deg
peri 108.6062298904476 4.4716e-05 deg
M 1.433655298979481 1.4158e-05 deg
tp 2459379.198187974398
(2021-Jun-13.69818797)
0.00017088 TDB
period 4344.595478181144
11.89
8.011e-05
2.193e-07
d
yr
n .08286156946209254 1.5279e-09 deg/d
Q 5.612425914255445 6.8991e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2577  
   data-arc span      24172 days (66.18 yr)  
   first obs. used      1955-04-20  
   last obs. used      2021-06-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .45706  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 13:39:11  

Additional Information
 Earth MOID = 3.8144 au 
 Jupiter MOID = .096995 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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