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79757 (1998 TR18)
Classification: Main-belt Asteroid          SPK-ID: 2079757
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 22 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1426924147036535 4.0518e-08  
a 2.401606866259377 1.1088e-08 au
q 2.058915783343953 9.7448e-08 au
i 1.091980488380504 4.5423e-06 deg
node 194.3874782855199 0.00024433 deg
peri 57.29998557494255 0.00024492 deg
M 45.78473479447392 1.9193e-05 deg
tp 2458827.610147475367
(2019-Dec-10.11014748)
7.1949e-05 TDB
period 1359.412633670643
3.72
9.4144e-06
2.578e-08
d
yr
n .2648202547801394 1.834e-09 deg/d
Q 2.744297949174802 1.267e-08 au
  Orbit Determination Parameters
   # obs. used (total)      809  
   data-arc span      9481 days (25.96 yr)  
   first obs. used      1994-08-13  
   last obs. used      2020-07-28  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60286  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-25 07:36:31  

Additional Information
 Earth MOID = 1.04483 au 
 Jupiter MOID = 2.28751 au 
 T_jup = 3.511 
[ 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 15.8   n/a MPO337857  

79757 (1998 TR18)          Discovered 1998-Oct-14 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20040504/Numbers.arcLast Updated: 2004-07-16

[ show close-approach data ]
Alternate Designations
 1998 TR18 = 2002 VV89 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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