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47469 (1999 YT20)
Classification: Main-belt Asteroid          SPK-ID: 2047469
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 .02499470614065189 3.6083e-08  
a 2.667803977519184 1.4163e-08 au
q 2.60112300106023 9.4896e-08 au
i 2.655216273816188 3.8958e-06 deg
node 101.3271418551541 0.00011187 deg
peri 172.9589437776233 0.0001526 deg
M 90.26438351601341 0.00010332 deg
tp 2458601.435385559284
(2019-Apr-27.93538556)
0.00045688 TDB
period 1591.583032006982
4.36
1.2675e-05
3.47e-08
d
yr
n .2261898956952569 1.8013e-09 deg/d
Q 2.734484953978138 1.4517e-08 au
  Orbit Determination Parameters
   # obs. used (total)      746  
   data-arc span      10410 days (28.50 yr)  
   first obs. used      1992-04-26  
   last obs. used      2020-10-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5512  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Nov-12 23:42:05  

Additional Information
 Earth MOID = 1.58477 au 
 Jupiter MOID = 2.27076 au 
 T_jup = 3.381 
[ 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 15.5   n/a MPO299286  

47469 (1999 YT20)          Discovered 1999-Dec-30 by Veillet, C. at Mauna Kea
Reference: 20020921/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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