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17420 (1988 RL13)
Classification: Jupiter Trojan          SPK-ID: 2017420
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08374384241014368 4.8089e-08  
a 5.199157494500494 1.0307e-07 au
q 4.763760068615528 3.032e-07 au
i 15.86190983605219 7.0845e-06 deg
node 59.30639355537271 1.8721e-05 deg
peri 258.6153477389848 5.7706e-05 deg
M 280.2878387987997 5.9153e-05 deg
tp 2460159.282216976952
(2023-Aug-02.78221698)
0.0007248 TDB
period 4330.099609775794
11.86
0.00012876
3.525e-07
d
yr
n .08313896502224813 2.4722e-09 deg/d
Q 5.634554920385462 1.117e-07 au
  Orbit Determination Parameters
   # obs. used (total)      848  
   data-arc span      15414 days (42.20 yr)  
   first obs. used      1978-11-30  
   last obs. used      2021-02-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5449  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 02:02:50  

Additional Information
 Earth MOID = 3.79401 au 
 Jupiter MOID = .201994 au 
 T_jup = 2.917 
[ 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 11.99   n/a E2021B10  
diameter diameter 18.361 km 0.980 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.100   0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

17420 (1988 RL13)          Discovered 1988-Sep-14 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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