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JPL Small-Body Database Browser
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390983 (2005 SO21)
Classification: Main-belt Asteroid          SPK-ID: 2390983
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2159791089886595 8.3932e-08  
a 3.108367105763898 8.2557e-08 au
q 2.437024747851353 2.486e-07 au
i 16.06784491540127 1.4431e-05 deg
node 203.0331530951662 3.1075e-05 deg
peri 80.91756486405355 5.044e-05 deg
M 248.120269125454 4.9842e-05 deg
tp 2459222.579365166417
(2021-Jan-08.07936517)
0.0002953 TDB
period 2001.69029465248
5.48
7.9746e-05
2.183e-07
d
yr
n .179848001942029 7.165e-09 deg/d
Q 3.779709463676443 1.0039e-07 au
  Orbit Determination Parameters
   # obs. used (total)      121  
   data-arc span      4490 days (12.29 yr)  
   first obs. used      2005-09-25  
   last obs. used      2018-01-10  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .63107  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-14 04:41:10  

Additional Information
 Earth MOID = 1.48422 au 
 Jupiter MOID = 1.64432 au 
 T_jup = 3.124 
[ 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 15.6   n/a MPO342135  

390983 (2005 SO21)          Discovered 2005-Sep-25 by Spacewatch at Kitt Peak
Reference: Last Updated: 2014-04-17

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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