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117385 (2004 YN20)
Classification: Jupiter Trojan          SPK-ID: 2117385
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04231919774556785 7.6057e-08  
a 5.291268107404426 1.4628e-07 au
q 5.067345886042362 4.2319e-07 au
i 13.29121073483059 6.5538e-06 deg
node 125.3726153909268 3.1724e-05 deg
peri 215.9758792979337 9.0205e-05 deg
M 201.3575733235675 8.7452e-05 deg
tp 2460559.592410115648
(2024-Sep-06.09241012)
0.0011127 TDB
period 4445.678765870814
12.17
0.00018436
5.048e-07
d
yr
n .08097751073777452 3.358e-09 deg/d
Q 5.515190328766491 1.5247e-07 au
  Orbit Determination Parameters
   # obs. used (total)      562  
   data-arc span      6822 days (18.68 yr)  
   first obs. used      2000-08-29  
   last obs. used      2019-05-04  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54681  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 06:54:45  

Additional Information
 Earth MOID = 4.0654 au 
 Jupiter MOID = .00921707 au 
 T_jup = 2.944 
[ 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 12.0   n/a MPO320347  
diameter diameter 21.969 km 1.133 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.076   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

117385 (2004 YN20)          Discovered 2004-Dec-18 by Mt. Lemmon Survey at Mt. Lemmon
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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