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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1336008134483189 4.4283e-08  
a 2.525684713466134 1.4237e-08 au
q 2.188251181233074 1.1153e-07 au
i 3.345385306142983 6.8096e-06 deg
node 342.5064522241677 9.6854e-05 deg
peri 283.0361403076969 0.00010136 deg
M 138.3478918032113 3.0078e-05 deg
tp 2458037.073622375605
(2017-Oct-10.57362238)
0.00012196 TDB
period 1466.111939264651
4.01
1.2396e-05
3.394e-08
d
yr
n .2455474171914616 2.0761e-09 deg/d
Q 2.863118245699194 1.6139e-08 au
  Orbit Determination Parameters
   # obs. used (total)      628  
   data-arc span      10284 days (28.16 yr)  
   first obs. used      1990-10-18  
   last obs. used      2018-12-14  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54526  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 11:27:29  

Additional Information
 Earth MOID = 1.17502 au 
 Jupiter MOID = 2.22292 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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