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90990 (1997 YT3)
Classification: Main-belt Asteroid          SPK-ID: 2090990
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 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1666587290060585 3.875e-08  
a 2.337699965624866 9.6187e-09 au
q 1.948101860556319 9.2505e-08 au
i 6.295557415794842 4.5074e-06 deg
node 283.4598302896046 4.6938e-05 deg
peri 113.3752889000583 5.0436e-05 deg
M 125.0957996311709 1.9794e-05 deg
tp 2458546.849066040746
(2019-Mar-04.34906604)
7.0151e-05 TDB
period 1305.514147612014
3.57
8.0575e-06
2.206e-08
d
yr
n .2757534268460402 1.7019e-09 deg/d
Q 2.727298070693413 1.1222e-08 au
  Orbit Determination Parameters
   # obs. used (total)      651  
   data-arc span      8185 days (22.41 yr)  
   first obs. used      1997-11-25  
   last obs. used      2020-04-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49589  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 16:36:54  

Additional Information
 Earth MOID = .965824 au 
 Jupiter MOID = 2.70387 au 
 T_jup = 3.540 
[ 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 15.9   n/a MPO468894  

90990 (1997 YT3)          Discovered 1997-Dec-22 by BAO Schmidt CCD Asteroid Program at Xinglong
Reference: 20041028/Numbers.arcLast Updated: 2004-10-29

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