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78684 (2002 TL137)
Classification: Main-belt Asteroid          SPK-ID: 2078684
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06498142936228729 4.8015e-08  
a 3.076215380040375 2.2678e-08 au
q 2.8763185076191 1.5165e-07 au
i 7.383784085674329 5.4253e-06 deg
node 276.5811068559765 4.1167e-05 deg
peri 179.8619702028376 5.974e-05 deg
M 34.08693266119275 4.2085e-05 deg
tp 2458813.901152312198
(2019-Nov-26.40115231)		 0.00023028 TDB
period 1970.71369944902
5.40		 2.1792e-05
5.966e-08		 d
yr
n .1826749365474296 2.02e-09 deg/d
Q 3.27611225246165 2.4152e-08 au
   Orbit Determination Parameters
   # obs. used (total)      744  
   data-arc span      8209 days (22.48 yr)  
   first obs. used      1997-11-26  
   last obs. used      2020-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51348  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:25:55  

Additional Information
 Earth MOID = 1.89314 au 
 Jupiter MOID = 1.87277 au 
 T_jup = 3.213 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456649.5 (2013-Dec-23.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06373442824914521 4.8998e-08  
q 2.87903911048485 1.5466e-07 au
tp 2456858.963405123357
(2014-Jul-20.46340512)		 0.00023023 TDB
node 276.7184566814487 4.1058e-05 deg
peri 182.7043377425474 5.9603e-05 deg
i 7.39464818396359 5.4319e-06 deg
   Orbit Determination Parameters
   # obs. used (total)      744  
   data-arc span      8209 days (22.48 yr)  
   first obs. used      1997-11-26  
   last obs. used      2020-05-18  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51348  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:25:55  

Additional Information
 Jupiter MOID = 1.87277 au 
 T_jup = 3.213 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.400763489268739E-15 -7.507777917275354E-15 2.388459950342973E-12 -3.35530174152817E-15 4.394367400257566E-13 -1.031213119703988E-15
q -7.507777917275354E-15 2.391879493387436E-14 -7.719224578772709E-12 1.127732863100654E-14 -1.433073765851275E-12 3.703169968120754E-15
tp 2.388459950342973E-12 -7.719224578772709E-12 5.300503520112378E-8 -2.196202663455162E-11 9.986134544773558E-9 -4.86563624808956E-12
node -3.35530174152817E-15 1.127732863100654E-14 -2.196202663455162E-11 1.685729159823789E-9 -1.675077012860944E-9 3.953352819961273E-11
peri 4.394367400257566E-13 -1.433073765851275E-12 9.986134544773558E-9 -1.675077012860944E-9 3.552494670768414E-9 -4.010117581863255E-11
i -1.031213119703988E-15 3.703169968120754E-15 -4.86563624808956E-12 3.953352819961273E-11 -4.010117581863255E-11 2.950551203699179E-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 14.7   n/a MPO459358  
diameter diameter 4.088 km 0.533 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.127   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78684 (2002 TL137)          Discovered 2002-Oct-04 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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