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JPL Small-Body Database Browser
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47322 (1999 XS21)
Classification: Main-belt Asteroid          SPK-ID: 2047322
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09754894106998312 3.3371e-08  
a 2.344070685907254 1.0645e-08 au
q 2.115409072703812 8.0418e-08 au
i 9.248981229216051 5.035e-06 deg
node 189.4364017844648 2.3525e-05 deg
peri 106.9621523492198 4.01e-05 deg
M 266.5261479467401 3.5893e-05 deg
tp 2458940.862826924065
(2020-Apr-01.36282692)		 0.00013196 TDB
period 1310.854479634019
3.59		 8.9291e-06
2.445e-08		 d
yr
n .2746300261341818 1.8707e-09 deg/d
Q 2.572732299110695 1.1683e-08 au
   Orbit Determination Parameters
   # obs. used (total)      993  
   data-arc span      8663 days (23.72 yr)  
   first obs. used      1995-08-22  
   last obs. used      2019-05-11  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55767  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-May-30 04:35:24  

Additional Information
 Earth MOID = 1.12149 au 
 Jupiter MOID = 2.59875 au 
 T_jup = 3.538 
[ show covariance matrix ]

[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.3   n/a MPO474348  

47322 (1999 XS21)          Discovered 1999-Dec-05 by LINEAR at Socorro
Reference: 20020921/Numbers.arcLast Updated: 2004-04-19
[ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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