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JPL Small-Body Database Browser
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410871 (2009 SW21)
Classification: Main-belt Asteroid          SPK-ID: 2410871
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 12 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .09358233352359217 1.0721e-07  
a 2.996280114326184 4.8897e-08 au
q 2.715881229337204 3.4817e-07 au
i 9.773246418848379 8.7476e-06 deg
node 305.8841550843945 4.5445e-05 deg
peri 70.1387470739774 6.0148e-05 deg
M 309.2630368149195 3.8511e-05 deg
tp 2458867.489396343328
(2020-Jan-18.98939634)
0.00020356 TDB
period 1894.401569384062
5.19
4.6373e-05
1.27e-07
d
yr
n .1900336263535978 4.6518e-09 deg/d
Q 3.276678999315163 5.3473e-08 au
  Orbit Determination Parameters
   # obs. used (total)      215  
   data-arc span      6798 days (18.61 yr)  
   first obs. used      2001-02-20  
   last obs. used      2019-10-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56641  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-08 14:22:54  

Additional Information
 Earth MOID = 1.73445 au 
 Jupiter MOID = 2.21433 au 
 T_jup = 3.226 
[ 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 15.7   n/a MPO440759  

410871 (2009 SW21)          Discovered 2009-Sep-18 by CSS at Catalina
Reference: Last Updated: 2014-10-09

Alternate Designations
 2009 SW21 = 2006 AX60 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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