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JPL Small-Body Database Browser
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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09442899620013677 5.769e-08  
a 5.216212441582684 1.0346e-07 au
q 4.723650736757366 3.3339e-07 au
i 1.621164194918884 6.6393e-06 deg
node 158.7266318938564 0.00020112 deg
peri 83.3526777986683 0.00020507 deg
M 307.7710704396555 4.407e-05 deg
tp 2459231.806058404211
(2021-Jan-17.30605840)
0.00053923 TDB
period 4351.423300049292
11.91
0.00012947
3.545e-07
d
yr
n .08273155130550547 2.4615e-09 deg/d
Q 5.708774146408001 1.1323e-07 au
  Orbit Determination Parameters
   # obs. used (total)      857  
   data-arc span      15170 days (41.53 yr)  
   first obs. used      1977-10-18  
   last obs. used      2019-05-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .58469  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-12 22:19:30  

Additional Information
 Earth MOID = 3.71128 au 
 Jupiter MOID = .120231 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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