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78687 (2002 TP139)
Classification: Main-belt Asteroid          SPK-ID: 2078687
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 29 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09495884036139034 4.0348e-08  
a 3.085264823954726 2.1704e-08 au
q 2.792291654064196 1.278e-07 au
i 8.227830465712797 5.3433e-06 deg
node 323.1842043801143 3.1989e-05 deg
peri 97.38418496574475 4.432e-05 deg
M 67.92236960384076 2.9267e-05 deg
tp 2458627.037133482882
(2019-May-23.53713348)
0.00016053 TDB
period 1979.416100031943
5.42
2.0887e-05
5.719e-08
d
yr
n .1818718156299681 1.9191e-09 deg/d
Q 3.378237993845256 2.3765e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1011  
   data-arc span      7728 days (21.16 yr)  
   first obs. used      1999-03-20  
   last obs. used      2020-05-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52556  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:25:54  

Additional Information
 Earth MOID = 1.8205 au 
 Jupiter MOID = 1.91539 au 
 T_jup = 3.204 
[ show covariance matrix ]

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 14.3   n/a MPO417368  
diameter diameter 5.153 km 1.777 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.105   0.085 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78687 (2002 TP139)          Discovered 2002-Oct-04 by LONEOS at Anderson Mesa
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 2002 TP139 = 2001 QQ224 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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