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134454 (1998 SG109)
Classification: Main-belt Asteroid          SPK-ID: 2134454
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2755310375190837 6.1249e-08  
a 2.541225721365554 1.051e-08 au
q 1.841039161787521 1.5897e-07 au
i 3.275924449040329 5.4639e-06 deg
node 280.6645055759889 0.0001008 deg
peri 87.09296059345716 0.00010164 deg
M 175.5240592783701 1.4965e-05 deg
tp 2458479.064608196742
(2018-Dec-26.56460820)
5.8347e-05 TDB
period 1479.664623282661
4.05
9.1798e-06
2.513e-08
d
yr
n .2432983760883151 1.5094e-09 deg/d
Q 3.241412280943587 1.3406e-08 au
  Orbit Determination Parameters
   # obs. used (total)      573  
   data-arc span      9772 days (26.75 yr)  
   first obs. used      1994-06-13  
   last obs. used      2021-03-15  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .60582  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 18:08:27  

Additional Information
 Earth MOID = .842074 au 
 Jupiter MOID = 2.24634 au 
 T_jup = 3.389 
[ 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 16.36   n/a E2021B55  

134454 (1998 SG109)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20060907/Numbers.arcLast Updated: 2006-09-10

[ show close-approach data ]
Alternate Designations
 1998 SG109 = 2002 RK154 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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