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JPL Small-Body Database Browser
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249904 (2001 SG90)
Classification: Main-belt Asteroid          SPK-ID: 2249904
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 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .03335945515187387 5.5696e-08  
a 2.68773981280399 2.5796e-08 au
q 2.59807827705885 1.5574e-07 au
i 11.09029704023095 6.9868e-06 deg
node 181.0840969140055 2.3612e-05 deg
peri 67.52612511338612 0.000113 deg
M 97.93014990723499 0.00011438 deg
tp 2458162.682434144794
(2018-Feb-13.18243414)
0.00050837 TDB
period 1609.456575499736
4.41
2.3171e-05
6.344e-08
d
yr
n .2236779826682928 3.2202e-09 deg/d
Q 2.777401348549131 2.6657e-08 au
  Orbit Determination Parameters
   # obs. used (total)      361  
   data-arc span      6650 days (18.21 yr)  
   first obs. used      2001-09-11  
   last obs. used      2019-11-26  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .56932  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Dec-04 18:49:34  

Additional Information
 Earth MOID = 1.60925 au 
 Jupiter MOID = 2.21698 au 
 T_jup = 3.346 
[ 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 16.1   n/a MPO360274  

249904 (2001 SG90)          Discovered 2001-Sep-20 by LINEAR at Socorro
Reference: 20100923/Numbers.arcLast Updated: 2010-09-27

Alternate Designations
 2001 SG90 = 2004 FE26 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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