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136990 (1998 SW34)
Classification: Inner Main-belt Asteroid          SPK-ID: 2136990
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0624283662948511 5.0283e-08  
a 1.911982158024396 7.604e-09 au
q 1.792620235514029 9.5707e-08 au
i 19.85983889773092 7.1194e-06 deg
node 14.21178141724202 1.0048e-05 deg
peri 214.0625977962937 5.6559e-05 deg
M 357.3687855298825 5.3975e-05 deg
tp 2459403.557939443779
(2021-Jul-08.05793944)
0.00014476 TDB
period 965.6598611085521
2.64
5.7607e-06
1.577e-08
d
yr
n .3728020750357475 2.224e-09 deg/d
Q 2.031344080534762 8.0787e-09 au
  Orbit Determination Parameters
   # obs. used (total)      617  
   data-arc span      8294 days (22.71 yr)  
   first obs. used      1998-09-26  
   last obs. used      2021-06-11  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .5813  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Jul-09 01:19:32  

Additional Information
 Earth MOID = .803062 au 
 Jupiter MOID = 2.94379 au 
 T_jup = 3.859 
[ 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 16.74   n/a MPCxxxxx  

136990 (1998 SW34)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20061205/Numbers.arcLast Updated: 2006-12-13

Alternate Designations
 1998 SW34 = 2005 GC128 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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