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JPL Small-Body Database Browser
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109899 (2001 SG20)
Classification: Outer Main-belt Asteroid          SPK-ID: 2109899
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2270219734693196 5.4147e-08  
a 3.216509332363498 2.7088e-08 au
q 2.486291036047853 1.8696e-07 au
i 1.613036658604789 4.7819e-06 deg
node 45.46553982660891 0.00021738 deg
peri 315.7412459222932 0.0002177 deg
M 14.79020253742439 1.3015e-05 deg
tp 2458513.934015793270
(2019-Jan-30.43401579)
7.5598e-05 TDB
period 2107.053925432562
5.77
2.6617e-05
7.287e-08
d
yr
n .1708546685278094 2.1583e-09 deg/d
Q 3.946727628679143 3.3237e-08 au
  Orbit Determination Parameters
   # obs. used (total)      460  
   data-arc span      8470 days (23.19 yr)  
   first obs. used      1995-08-19  
   last obs. used      2018-10-27  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .54774  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 10:03:01  

Additional Information
 Earth MOID = 1.48291 au 
 Jupiter MOID = 1.5051 au 
 T_jup = 3.149 
[ 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 15.1   n/a MPO412774  

109899 (2001 SG20)          Discovered 2001-Sep-16 by LINEAR at Socorro
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

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