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295024 (2008 ET73)
Classification: Jupiter Trojan          SPK-ID: 2295024
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 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04074601432060056 7.9019e-08  
a 5.216377142740883 1.7424e-07 au
q 5.00383056498111 5.1347e-07 au
i 5.869938798398064 6.705e-06 deg
node 71.34436342112224 8.7245e-05 deg
peri 188.5257967583821 0.0001597 deg
M 295.5986395618974 0.00013789 deg
tp 2459778.974592116644
(2022-Jul-18.47459212)
0.001671 TDB
period 4351.629395024132
11.91
0.00021803
5.969e-07
d
yr
n .08272763310488752 4.145e-09 deg/d
Q 5.428923720500657 1.8134e-07 au
  Orbit Determination Parameters
   # obs. used (total)      199  
   data-arc span      6004 days (16.44 yr)  
   first obs. used      2003-11-19  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56112  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 18:39:23  

Additional Information
 Earth MOID = 3.98866 au 
 Jupiter MOID = .31057 au 
 T_jup = 2.988 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457731.5 (2016-Dec-09.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03951331752842972 8.0858e-08  
q 5.022151909334571 5.2338e-07 au
tp 2459753.731851602617
(2022-Jun-23.23185160)
0.0016965 TDB
node 71.34649124029619 8.7186e-05 deg
peri 185.9932407687943 0.00016126 deg
i 5.868685096180188 6.7036e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      199  
   data-arc span      6004 days (16.44 yr)  
   first obs. used      2003-11-19  
   last obs. used      2020-04-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56112  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-21 18:39:23  

Additional Information
 Jupiter MOID = .31057 au 
 T_jup = 2.988 
Orbit Covariance (6×6)
  e q tp node peri i
e 6.538052936806847E-15 -4.05733316610058E-14 -6.686099355218208E-11 -5.075246227779131E-15 -4.827450740143932E-12 -4.054902021266152E-15
q -4.05733316610058E-14 2.739271565271535E-13 3.785747500615887E-10 3.640378210771787E-14 2.590707643600608E-11 2.916650047149417E-14
tp -6.686099355218208E-11 3.785747500615887E-10 2.87823587196103E-6 1.166659268040456E-10 2.298203592176945E-7 1.033058360800216E-10
node -5.075246227779131E-15 3.640378210771787E-14 1.166659268040456E-10 7.601377211435315E-9 -7.552642495549613E-9 -1.843689072707876E-10
peri -4.827450740143932E-12 2.590707643600608E-11 2.298203592176945E-7 -7.552642495549613E-9 2.600325314683458E-8 1.912445580160958E-10
i -4.054902021266152E-15 2.916650047149417E-14 1.033058360800216E-10 -1.843689072707876E-10 1.912445580160958E-10 4.493877516685445E-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 13.4   n/a MPO433901  

295024 (2008 ET73)          Discovered 2008-Mar-07 by Spacewatch at Kitt Peak
Reference: 20110912/Numbers.arcLast Updated: 2011-09-14

Alternate Designations
 2008 ET73 = 2007 DG62 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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