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78685 (2002 TY138)
Classification: Main-belt Asteroid          SPK-ID: 2078685
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 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .06578086348135161 4.5994e-08  
a 2.741547952949793 2.0048e-08 au
q 2.561206561329223 1.3646e-07 au
i 12.10737535440972 4.6689e-06 deg
node 245.6688011784204 2.4592e-05 deg
peri 218.7553359531389 4.9477e-05 deg
M 251.1953397486858 4.4208e-05 deg
tp 2459501.614758181784
(2021-Oct-14.11475818)
0.0002045 TDB
period 1658.029284120329
4.54
1.8187e-05
4.979e-08
d
yr
n .217125236235498 2.3816e-09 deg/d
Q 2.921889344570362 2.1366e-08 au
  Orbit Determination Parameters
   # obs. used (total)      945  
   data-arc span      7982 days (21.85 yr)  
   first obs. used      1998-12-22  
   last obs. used      2020-10-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51834  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 21:25:55  

Additional Information
 Earth MOID = 1.58842 au 
 Jupiter MOID = 2.31205 au 
 T_jup = 3.314 
[ 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 14.6   n/a MPO432336  

78685 (2002 TY138)          Discovered 2002-Oct-04 by LONEOS at Anderson Mesa
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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