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5419 Benua (1981 SW7)
Classification: Main-belt Asteroid          SPK-ID: 2005419
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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For accurate long-term ephemerides, please instead use our Horizons system.This orbit viewer was implemented using two-body methods, and hence should not be used for determining accurate long-term trajectories (over several years or decades) or planetary encounter circumstances.


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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1801905778052925 4.7605e-08  
a 3.106125732356189 1.7122e-08 au
q 2.54643114190704 1.4588e-07 au
i 5.190708224579503 4.1328e-06 deg
node 296.9334228649726 5.5106e-05 deg
peri 61.61444419333323 5.6253e-05 deg
M 55.10959952493504 1.0702e-05 deg
tp 2458694.408176663451
(2019-Jul-29.90817666)
5.9575e-05 TDB
period 1999.525624411395
5.47
1.6533e-05
4.526e-08
d
yr
n .1800427039318258 1.4887e-09 deg/d
Q 3.665820322805338 2.0208e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1715  
   data-arc span      15756 days (43.14 yr)  
   first obs. used      1976-12-16  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49694  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:37:41  

Additional Information
 Earth MOID = 1.54769 au 
 Jupiter MOID = 1.82809 au 
 T_jup = 3.189 
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Orbital Elements at Epoch 2456779.5 (2014-May-02.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1828687870842178 4.879e-08  
q 2.535108040464738 1.5039e-07 au
tp 2456679.783485246667
(2014-Jan-22.28348525)
5.9486e-05 TDB
node 297.8273034678007 5.4707e-05 deg
peri 58.49307370912385 5.5805e-05 deg
i 5.214605987722455 4.156e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1715  
   data-arc span      15756 days (43.14 yr)  
   first obs. used      1976-12-16  
   last obs. used      2020-02-05  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49694  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 17:37:41  

Additional Information
 Jupiter MOID = 1.82809 au 
 T_jup = 3.189 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.380503718247E-15 -7.309348784145025E-15 6.265881132252159E-14 -4.439754132306714E-15 -3.778151588281553E-14 -1.648699893183385E-15
q -7.309348784145025E-15 2.261593625412085E-14 -3.8378211820545E-13 1.024168506000373E-14 8.702065151824816E-14 6.050663439876257E-15
tp 6.265881132252159E-14 -3.8378211820545E-13 3.538586826075818E-9 -2.693740520042202E-11 6.981302528130966E-10 2.391400918111246E-12
node -4.439754132306714E-15 1.024168506000373E-14 -2.693740520042202E-11 2.992879919445534E-9 -2.984132295755865E-9 4.124832724274888E-11
peri -3.778151588281553E-14 8.702065151824816E-14 6.981302528130966E-10 -2.984132295755865E-9 3.114219394379249E-9 -4.078096374977462E-11
i -1.648699893183385E-15 6.050663439876257E-15 2.391400918111246E-12 4.124832724274888E-11 -4.078096374977462E-11 1.727247785026216E-11

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 12.9   n/a MPO358683  
diameter diameter 13.907 km 0.237 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.083   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

5419 Benua (1981 SW7)          Discovered 1981-Sep-29 by Zhuravleva, L. V. at Nauchnyj
Reference: DISCOVERY.DBLast Updated: 2003-08-29

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Alternate Designations
 1981 SW7 = 1976 YK2 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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