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JPL Small-Body Database Browser
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71220 (1999 YY8)
Classification: Main-belt Asteroid          SPK-ID: 2071220
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 24 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1335656200511526 3.9569e-08  
a 2.525692846790564 1.3908e-08 au
q 2.188347115650222 1.0092e-07 au
i 3.345687830918057 5.7123e-06 deg
node 342.4901859142267 8.6663e-05 deg
peri 283.1577060843648 9.0095e-05 deg
M 236.4297021268218 2.6003e-05 deg
tp 2459503.746567107323
(2021-Oct-16.24656711)
0.00010731 TDB
period 1466.119021130563
4.01
1.211e-05
3.316e-08
d
yr
n .2455462311118468 2.0282e-09 deg/d
Q 2.863038577930907 1.5765e-08 au
  Orbit Determination Parameters
   # obs. used (total)      664  
   data-arc span      10689 days (29.26 yr)  
   first obs. used      1990-10-18  
   last obs. used      2020-01-23  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54296  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-23 16:22:31  

Additional Information
 Earth MOID = 1.17552 au 
 Jupiter MOID = 2.22359 au 
 T_jup = 3.439 
[ 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 15.7   n/a MPO309690  

71220 (1999 YY8)          Discovered 1999-Dec-31 by Comba, P. G. at Prescott
Reference: 20031109/Numbers.arcLast Updated: 2004-04-19

[ show close-approach data ]
Alternate Designations
 1999 YY8 = 2002 RD96 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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