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100254 (1994 SG4)
Classification: Main-belt Asteroid          SPK-ID: 2100254
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08125255407978461 4.9144e-08  
a 2.654155733014723 1.9975e-08 au
q 2.438498800781774 1.3251e-07 au
i 4.274153464233535 5.3743e-06 deg
node 5.828961044335641 7.838e-05 deg
peri 254.7418933449056 8.6529e-05 deg
M 72.88541072215281 3.5599e-05 deg
tp 2458680.738528430934
(2019-Jul-16.23852843)
0.00015608 TDB
period 1579.385073422875
4.32
1.7829e-05
4.881e-08
d
yr
n .2279368129140291 2.5731e-09 deg/d
Q 2.869812665247672 2.1598e-08 au
  Orbit Determination Parameters
   # obs. used (total)      402  
   data-arc span      9490 days (25.98 yr)  
   first obs. used      1994-09-28  
   last obs. used      2020-09-21  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .60478  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Oct-22 19:35:58  

Additional Information
 Earth MOID = 1.42762 au 
 Jupiter MOID = 2.18002 au 
 T_jup = 3.380 
[ 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 15.9   n/a MPO474878  

100254 (1994 SG4)          Discovered 1994-Sep-28 by Spacewatch at Kitt Peak
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

Alternate Designations
 1994 SG4 = 2003 UF203 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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