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78664 (2002 TN89)
Classification: Main-belt Asteroid          SPK-ID: 2078664
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1373932162031236 5.6699e-08  
a 2.96482366061131 2.0042e-08 au
q 2.557477002404804 1.749e-07 au
i 9.521866314068825 5.8564e-06 deg
node 233.5107838301676 3.8516e-05 deg
peri 171.7090006868387 4.5739e-05 deg
M 145.6095699379878 2.6862e-05 deg
tp 2458246.304134887766
(2018-May-07.80413489)
0.00013472 TDB
period 1864.647437363045
5.11
1.8908e-05
5.177e-08
d
yr
n .1930659881254047 1.9577e-09 deg/d
Q 3.372170318817816 2.2796e-08 au
  Orbit Determination Parameters
   # obs. used (total)      834  
   data-arc span      8261 days (22.62 yr)  
   first obs. used      1997-10-29  
   last obs. used      2020-06-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56508  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:26:02  

Additional Information
 Earth MOID = 1.5675 au 
 Jupiter MOID = 2.01571 au 
 T_jup = 3.230 
[ 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 14.4   n/a MPO337848  
diameter diameter 4.880 km 0.749 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.089   0.050 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

78664 (2002 TN89)          Discovered 2002-Oct-03 by NEAT at Palomar
Reference: 20040415/Numbers.arcLast Updated: 2004-04-19

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