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78680 (2002 TR131)
Classification: Main-belt Asteroid          SPK-ID: 2078680
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1041867211613515 4.4508e-08  
a 3.107182232320623 2.5003e-08 au
q 2.783455103484329 1.4062e-07 au
i 9.258863820071404 5.9286e-06 deg
node 343.0236132127368 2.8219e-05 deg
peri 73.87967565937592 4.1984e-05 deg
M 78.27737191918104 2.8794e-05 deg
tp 2458765.507018692205
(2019-Oct-09.00701869)		 0.00015955 TDB
period 2000.54587208789
5.48		 2.4147e-05
6.611e-08		 d
yr
n .1799508849173662 2.172e-09 deg/d
Q 3.430909361156917 2.7608e-08 au
   Orbit Determination Parameters
   # obs. used (total)      771  
   data-arc span      10698 days (29.29 yr)  
   first obs. used      1991-10-04  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50889  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:16:09  

Additional Information
 Earth MOID = 1.81204 au 
 Jupiter MOID = 1.93328 au 
 T_jup = 3.192 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457224.5 (2015-Jul-21.0) TDB
Reference: JPL 28 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1009944357544741 4.3995e-08  
q 2.797425986135794 1.3843e-07 au
tp 2456768.779891449133
(2014-Apr-21.27989145)		 0.00016689 TDB
node 343.0810357530912 2.8174e-05 deg
peri 74.74730115121093 4.2769e-05 deg
i 9.2635676607366 5.9285e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      771  
   data-arc span      10698 days (29.29 yr)  
   first obs. used      1991-10-04  
   last obs. used      2021-01-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .50889  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Feb-24 07:16:09  

Additional Information
 Jupiter MOID = 1.93328 au 
 T_jup = 3.192 
Orbit Covariance (6×6)
  e q tp node peri i
e 1.935520698398223E-15 -6.007541213166725E-15 -1.879389094212401E-12 2.278913246772656E-15 -4.106574175369126E-13 -3.816911659010409E-15
q -6.007541213166725E-15 1.916376170523862E-14 5.314998303924137E-12 -8.144339908526957E-15 1.19728146619936E-12 1.278721481304329E-14
tp -1.879389094212401E-12 5.314998303924137E-12 2.785339396558653E-8 -5.238856868007326E-11 5.384206631587662E-9 -6.703390809827098E-12
node 2.278913246772656E-15 -8.144339908526957E-15 -5.238856868007326E-11 7.937482463737945E-10 -7.934500452234592E-10 6.029473441424067E-12
peri -4.106574175369126E-13 1.19728146619936E-12 5.384206631587662E-9 -7.934500452234592E-10 1.829179185690226E-9 -7.087038884309869E-12
i -3.816911659010409E-15 1.278721481304329E-14 -6.703390809827098E-12 6.029473441424067E-12 -7.087038884309869E-12 3.514760583988446E-11

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 14.72   n/a E2021B10  
diameter diameter 4.648 km 1.350 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.142   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78680 (2002 TR131)          Discovered 2002-Oct-04 by LINEAR at Socorro
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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Alternate Designations
 2002 TR131 = 1991 TP4 
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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