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JPL Small-Body Database Browser
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442318 (2011 SW118)
Classification: Main-belt Asteroid          SPK-ID: 2442318
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 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0443196119650659 7.0273e-08  
a 2.876646860166203 5.3829e-08 au
q 2.749154987563112 2.2582e-07 au
i 11.48208960654346 5.7232e-06 deg
node 113.2491158441344 3.7172e-05 deg
peri 115.5540011676118 8.3047e-05 deg
M 350.4390627735325 7.1713e-05 deg
tp 2458647.828879093942
(2019-Jun-13.32887909)
0.00035442 TDB
period 1782.08433652843
4.88
5.002e-05
1.369e-07
d
yr
n .2020106414836091 5.6701e-09 deg/d
Q 3.004138732769295 5.6214e-08 au
  Orbit Determination Parameters
   # obs. used (total)      141  
   data-arc span      3696 days (10.12 yr)  
   first obs. used      2009-04-19  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6515  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:00  

Additional Information
 Earth MOID = 1.75771 au 
 Jupiter MOID = 2.08427 au 
 T_jup = 3.265 
[ hide covariance matrix ]
Orbital Elements at Epoch 2457433.5 (2016-Feb-15.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .04344412657659405 7.0314e-08  
q 2.752170109591961 2.2562e-07 au
tp 2456863.456904677650
(2014-Jul-24.95690468)
0.00038617 TDB
node 113.2713003529359 3.718e-05 deg
peri 115.066525821223 8.441e-05 deg
i 11.48009928992346 5.7217e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      141  
   data-arc span      3696 days (10.12 yr)  
   first obs. used      2009-04-19  
   last obs. used      2019-06-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .6515  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Sep-24 07:43:00  

Additional Information
 Jupiter MOID = 2.08427 au 
 T_jup = 3.265 
Orbit Covariance (6×6)
  e q tp node peri i
e 4.944005332863862E-15 -1.54958104569557E-14 2.221994258089844E-12 -2.210029213049005E-14 3.223729212518265E-13 -9.465601005579431E-16
q -1.54958104569557E-14 5.090378888901409E-14 -1.700273510604927E-11 7.265495515473794E-14 -2.879198923373116E-12 8.893507205514446E-15
tp 2.221994258089844E-12 -1.700273510604927E-11 1.491294119839524E-7 2.742564485529242E-11 2.932706623285807E-8 -1.809583675448976E-11
node -2.210029213049005E-14 7.265495515473794E-14 2.742564485529242E-11 1.38237728155048E-9 -1.348258339848976E-9 -2.599396721616054E-11
peri 3.223729212518265E-13 -2.879198923373116E-12 2.932706623285807E-8 -1.348258339848976E-9 7.124968486157141E-9 2.228689043094216E-11
i -9.465601005579431E-16 8.893507205514446E-15 -1.809583675448976E-11 -2.599396721616054E-11 2.228689043094216E-11 3.273816498479284E-11

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.5   n/a MPO434643  

442318 (2011 SW118)          Discovered 2010-Jun-19 by Mt. Lemmon Survey at Mount Lemmon
Reference: Last Updated: 2015-09-02

Alternate Designations
 2011 SW118 = 2013 AB69 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ]
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