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17423 (1988 SK2)
Classification: Jupiter Trojan          SPK-ID: 2017423
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 .09446594388085451 5.7558e-08  
a 5.214662264938426 1.0106e-07 au
q 4.722054272061142 3.3108e-07 au
i 1.621306938813971 6.6262e-06 deg
node 158.7306911867014 0.00020091 deg
peri 83.66849790657994 0.0002048 deg
M 340.5979689798332 4.3943e-05 deg
tp 2459234.913381438182
(2021-Jan-20.41338144)
0.00053319 TDB
period 4349.483681890322
11.91
0.00012644
3.462e-07
d
yr
n .08276844479240372 2.4062e-09 deg/d
Q 5.707270257815709 1.1061e-07 au
  Orbit Determination Parameters
   # obs. used (total)      861  
   data-arc span      15444 days (42.28 yr)  
   first obs. used      1977-10-18  
   last obs. used      2020-01-30  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58387  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 22:03:53  

Additional Information
 Earth MOID = 3.70975 au 
 Jupiter MOID = .120001 au 
 T_jup = 2.990 
[ 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 12.2   n/a PDS3 (MPO 4047)  
diameter diameter 14.885 km 0.780 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  
geometric albedo albedo 0.115   0.026 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2012ApJ...759...49G)  

17423 (1988 SK2)          Discovered 1988-Sep-16 by Bus, S. J. at Cerro Tololo
Reference: 20001013/Numbers.arcLast Updated: 2004-04-19
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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