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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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1051117223596382 8.0196e-08  
a 5.231230289439177 1.7677e-07 au
q 4.681366663656316 5.1557e-07 au
i 35.88461752675386 7.4332e-06 deg
node 139.496867326985 1.0487e-05 deg
peri 245.5345288031637 4.1914e-05 deg
M 327.111497858775 4.4588e-05 deg
tp 2459399.750785442763
(2021-Jul-04.25078544)
0.00054462 TDB
period 4370.228906813974
11.97
0.00022152
6.065e-07
d
yr
n .08237554775190269 4.1754e-09 deg/d
Q 5.781093915222038 1.9535e-07 au
  Orbit Determination Parameters
   # obs. used (total)      279  
   data-arc span      8850 days (24.23 yr)  
   first obs. used      1995-07-03  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57922  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:13:54  

Additional Information
 Earth MOID = 3.81153 au 
 Jupiter MOID = .0649649 au 
 T_jup = 2.610 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457369.5 (2015-Dec-13.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .103953543882174 8.0167e-08  
q 4.688324431564459 5.1568e-07 au
tp 2459402.942140092420
(2021-Jul-07.44214009)
0.0005501 TDB
node 139.5126871218806 1.0487e-05 deg
peri 245.5582174152187 4.2358e-05 deg
i 35.8671922089937 7.4347e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      279  
   data-arc span      8850 days (24.23 yr)  
   first obs. used      1995-07-03  
   last obs. used      2019-09-25  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .57922  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 02:13:54  

Additional Information
 Jupiter MOID = .0649649 au 
 T_jup = 2.610 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.426675113391372E-15 -3.980795964107202E-14 -2.296046747347854E-11 -6.213551188689746E-15 -1.276337659096239E-12 1.44847158605146E-14
q -3.980795964107202E-14 2.659232160466832E-13 1.357352456180858E-10 4.867704584068193E-14 6.451573261919797E-12 -6.739564349121612E-14
tp -2.296046747347854E-11 1.357352456180858E-10 3.026105262538926E-7 4.555465809607261E-12 2.213623135681372E-8 -2.353743541704462E-11
node -6.213551188689746E-15 4.867704584068193E-14 4.555465809607261E-12 1.09971293584394E-10 -8.951288452065514E-11 6.296062520262515E-12
peri -1.276337659096239E-12 6.451573261919797E-12 2.213623135681372E-8 -8.951288452065514E-11 1.794164261622906E-9 -6.857606003324103E-12
i 1.44847158605146E-14 -6.739564349121612E-14 -2.353743541704462E-11 6.296062520262515E-12 -6.857606003324103E-12 5.527447739230101E-11

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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