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120731 (1997 TY2)
Classification: Main-belt Asteroid          SPK-ID: 2120731
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1924203881085896 3.8362e-08  
a 2.459421486865263 7.6055e-09 au
q 1.986178649840044 9.7573e-08 au
i 2.06820366761255 4.7089e-06 deg
node 348.5069260319405 8.4196e-05 deg
peri 54.672631181 8.519e-05 deg
M 348.1271129049317 1.2181e-05 deg
tp 2459246.962407388284
(2021-Feb-01.46240739)
4.7743e-05 TDB
period 1408.795226119018
3.86
6.5348e-06
1.789e-08
d
yr
n .2555374928347369 1.1853e-09 deg/d
Q 2.932664323890481 9.069e-09 au
  Orbit Determination Parameters
   # obs. used (total)      725  
   data-arc span      10025 days (27.45 yr)  
   first obs. used      1993-09-14  
   last obs. used      2021-02-24  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51816  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 17:07:52  

Additional Information
 Earth MOID = .994825 au 
 Jupiter MOID = 2.47666 au 
 T_jup = 3.464 
[ 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 16.25   n/a E2021B55  

120731 (1997 TY2)          Discovered 1997-Oct-03 by ODAS at Caussols
Reference: 20060314/Numbers.arcLast Updated: 2006-03-23

[ show close-approach data ]
Alternate Designations
 1997 TY2 = 2001 US65 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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