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22203 Prothoenor (6020 P-L)
Classification: Jupiter Trojan          SPK-ID: 2022203
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 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1006995872038374 3.2328e-08  
a 5.199242354865554 7.5074e-08 au
q 4.675680795957885 1.627e-07 au
i 1.380392332766478 5.2536e-06 deg
node 189.4120435654108 0.00014437 deg
peri 96.8268676766051 0.00014693 deg
M 78.48728902935612 2.5614e-05 deg
tp 2458256.427499048497
(2018-May-17.92749905)
0.00031257 TDB
period 4330.205623682875
11.86
9.3788e-05
2.568e-07
d
yr
n .08313692957929722 1.8007e-09 deg/d
Q 5.722803913773222 8.2634e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1612  
   data-arc span      24458 days (66.96 yr)  
   first obs. used      1954-02-26  
   last obs. used      2021-02-12  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .50649  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 04:02:27  

Additional Information
 Earth MOID = 3.65771 au 
 Jupiter MOID = .136972 au 
 T_jup = 2.989 
[ 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 11.68   n/a E2021B10  
diameter diameter 24.605 km 1.229 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.073   0.009 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

22203 Prothoenor           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels.
Prothoenor was also a hero from Boeotia in the fight against Troy, as were Klonios and Arkesilaos.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010705/MPCPages.arcLast Updated: 2009-05-11

Alternate Designations
 6020 P-L = 1994 NL11 = 1996 TT68 = 1998 UV31 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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