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243159 (2007 TD74)
Classification: Jupiter Trojan          SPK-ID: 2243159
[ 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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1051117447325873 7.5517e-08  
a 5.231230244737569 1.6582e-07 au
q 4.681366506615324 4.7688e-07 au
i 35.88461969813142 7.2725e-06 deg
node 139.496862089779 1.0044e-05 deg
peri 245.5345965293541 3.7194e-05 deg
M 327.1114410327555 3.7256e-05 deg
tp 2459399.751470166142
(2021-Jul-04.25147017)		 0.00045163 TDB
period 4370.228850797631
11.97		 0.00020779
5.689e-07		 d
yr
n .08237554880776889 3.9168e-09 deg/d
Q 5.781093982859814 1.8325e-07 au
   Orbit Determination Parameters
   # obs. used (total)      343  
   data-arc span      9214 days (25.23 yr)  
   first obs. used      1995-07-03  
   last obs. used      2020-09-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51963  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 00:58:16  

Additional Information
 Earth MOID = 3.81153 au 
 Jupiter MOID = .0649643 au 
 T_jup = 2.610 
[ 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 12.6   n/a MPO418299  
diameter diameter 18.125 km 0.649 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  
geometric albedo albedo 0.041   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[jupiter_trojans] (http://adsabs.harvard.edu/abs/2011ApJ...742...40G)  

243159 (2007 TD74)          Discovered 2007-Oct-14 by Mt. Lemmon Survey at Mount Lemmon
Reference: 20100626/Numbers.arcLast Updated: 2010-06-28
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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