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181834 (1998 SW116)
Classification: Main-belt Asteroid          SPK-ID: 2181834
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1198150239259294 5.3472e-08  
a 2.448932835565457 1.7293e-08 au
q 2.155513889279188 1.3405e-07 au
i 5.929615662935178 5.8741e-06 deg
node 327.4780731034913 4.3989e-05 deg
peri 39.84184224635639 4.7975e-05 deg
M 294.9770390402786 1.9847e-05 deg
tp 2459453.329636188867
(2021-Aug-26.82963619)
7.7988e-05 TDB
period 1399.792745279221
3.83
1.4827e-05
4.059e-08
d
yr
n .2571809299727365 2.7241e-09 deg/d
Q 2.742351781851727 1.9365e-08 au
  Orbit Determination Parameters
   # obs. used (total)      345  
   data-arc span      7914 days (21.67 yr)  
   first obs. used      1998-09-26  
   last obs. used      2020-05-27  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .51565  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-Apr-13 21:32:14  

Additional Information
 Earth MOID = 1.15573 au 
 Jupiter MOID = 2.71947 au 
 T_jup = 3.480 
[ 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 16.43   n/a E2021B55  

181834 (1998 SW116)          Discovered 1998-Sep-26 by LINEAR at Socorro
Reference: 20080420/Numbers.arcLast Updated: 2008-04-23

Alternate Designations
 1998 SW116 = 2002 XV7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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