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117389 (2004 YD23)
Classification: Jupiter Trojan          SPK-ID: 2117389
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 23 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07399716079145713 5.9493e-08  
a 5.166129331011763 1.3653e-07 au
q 4.783850428235422 3.8585e-07 au
i 25.18603317240672 6.0392e-06 deg
node 130.096219491873 1.3387e-05 deg
peri 194.5388419924705 5.2153e-05 deg
M 276.961771154891 5.5569e-05 deg
tp 2459989.786117857790
(2023-Feb-14.28611786)
0.00067825 TDB
period 4288.9041274365
11.74
0.00017002
4.655e-07
d
yr
n .08393752560171444 3.3273e-09 deg/d
Q 5.548408233788103 1.4663e-07 au
  Orbit Determination Parameters
   # obs. used (total)      572  
   data-arc span      11548 days (31.62 yr)  
   first obs. used      1988-09-14  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55592  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 20:12:02  

Additional Information
 Earth MOID = 3.775 au 
 Jupiter MOID = .215359 au 
 T_jup = 2.806 
[ 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 12.3   n/a MPO436563  
diameter diameter 18.596 km 0.503 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.067   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

117389 (2004 YD23)          Discovered 2004-Dec-18 by Mt. Lemmon Survey at Mt. Lemmon
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 2004 YD23 = 1988 RC13 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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