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JPL Small-Body Database Browser
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245949 (2006 SG21)
Classification: Main-belt Asteroid          SPK-ID: 2245949
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04332699923505137 5.305e-08  
a 2.704725933340071 2.2978e-08 au
q 2.587538274895222 1.5145e-07 au
i 6.323600846962347 4.7428e-06 deg
node 158.2327849559513 4.0639e-05 deg
peri 204.4823871667435 7.2292e-05 deg
M 19.83147818033407 5.7145e-05 deg
tp 2458910.997346677215
(2020-Mar-02.49734668)
0.00025819 TDB
period 1624.737949597446
4.45
2.0705e-05
5.669e-08
d
yr
n .2215741929885958 2.8236e-09 deg/d
Q 2.82191359178492 2.3974e-08 au
  Orbit Determination Parameters
   # obs. used (total)      273  
   data-arc span      7061 days (19.33 yr)  
   first obs. used      2000-05-04  
   last obs. used      2019-09-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .566  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 04:16:39  

Additional Information
 Earth MOID = 1.58478 au 
 Jupiter MOID = 2.36981 au 
 T_jup = 3.356 
[ 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 16.3   n/a MPO450099  

245949 (2006 SG21)          Discovered 2006-Sep-16 by LONEOS at Anderson Mesa
Reference: 20100726/Numbers.arcLast Updated: 2010-07-28

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