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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 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457501.5 (2016-Apr-23.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1039662696346345 7.5534e-08  
q 4.688465726812379 4.7689e-07 au
tp 2459401.472206733196
(2021-Jul-05.97220673)
0.00045627 TDB
node 139.5120774969613 1.0042e-05 deg
peri 245.4507467957788 3.7579e-05 deg
i 35.86713167649627 7.2744e-06 deg
  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
 Jupiter MOID = .0649643 au 
 T_jup = 2.610 
Orbit Covariance (6×6)
  e q tp node peri i
e 5.705416002901435E-15 -3.453555170685736E-14 -1.471401940113217E-11 -4.328195930057089E-15 -7.580612504496794E-13 1.393619296459205E-14
q -3.453555170685736E-14 2.274224517221516E-13 7.557527235681551E-11 3.765526566793861E-14 2.669473897682632E-12 -6.469801529539799E-14
tp -1.471401940113217E-11 7.557527235681551E-11 2.081857186208728E-7 -1.874140141498978E-12 1.618033853413947E-8 -2.672310186588496E-11
node -4.328195930057089E-15 3.765526566793861E-14 -1.874140141498978E-12 1.008496956069746E-10 -8.249670808117788E-11 1.086417195419761E-11
peri -7.580612504496794E-13 2.669473897682632E-12 1.618033853413947E-8 -8.249670808117788E-11 1.412186554453566E-9 -1.079175465057668E-11
i 1.393619296459205E-14 -6.469801529539799E-14 -2.672310186588496E-11 1.086417195419761E-11 -1.079175465057668E-11 5.291740903410826E-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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