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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 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1799054638309521 4.7678e-08  
a 3.104970797124718 1.795e-08 au
q 2.546369585686435 1.4615e-07 au
i 5.190647766018582 4.5543e-06 deg
node 296.9371549097887 5.5448e-05 deg
peri 61.54949997845448 5.6673e-05 deg
M 343.1278889950963 1.1774e-05 deg
tp 2458694.159455796756
(2019-Jul-29.65945580)
6.5399e-05 TDB
period 1998.41051763069
5.47
1.7329e-05
4.744e-08
d
yr
n .1801431671941033 1.5621e-09 deg/d
Q 3.663572008563001 2.1179e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1552  
   data-arc span      15659 days (42.87 yr)  
   first obs. used      1976-12-16  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51505  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:45:53  

Additional Information
 Earth MOID = 1.54672 au 
 Jupiter MOID = 1.82641 au 
 T_jup = 3.189 
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Orbital Elements at Epoch 2456557.5 (2013-Sep-22.0) TDB
Reference: JPL 26 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1830929276702114 4.883e-08  
q 2.535126136591172 1.5073e-07 au
tp 2456679.746751185943
(2014-Jan-22.24675119)
6.2982e-05 TDB
node 297.8271120198253 5.5025e-05 deg
peri 58.48404126257553 5.6181e-05 deg
i 5.21450457764937 4.5802e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      1552  
   data-arc span      15659 days (42.87 yr)  
   first obs. used      1976-12-16  
   last obs. used      2019-10-31  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .51505  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Nov-07 02:45:53  

Additional Information
 Jupiter MOID = 1.82641 au 
 T_jup = 3.189 
Orbit Covariance (6×6)
  e q tp node peri i
e 2.384353186936109E-15 -7.328751131434848E-15 3.895057098388887E-14 -3.003989832312716E-15 -4.251403397764689E-14 -8.471701056492188E-16
q -7.328751131434848E-15 2.27205042845842E-14 -2.130407858382643E-13 6.308591537168326E-15 1.149658024254456E-13 3.567416013730267E-15
tp 3.895057098388887E-14 -2.130407858382643E-13 3.966786265800963E-9 -2.377676609497299E-11 7.549688670645257E-10 2.697699812834641E-12
node -3.003989832312716E-15 6.308591537168326E-15 -2.377676609497299E-11 3.027752852557496E-9 -3.018413579666942E-9 5.155469002118738E-11
peri -4.251403397764689E-14 1.149658024254456E-13 7.549688670645257E-10 -3.018413579666942E-9 3.156273134385784E-9 -5.100043085783336E-11
i -8.471701056492188E-16 3.567416013730267E-15 2.697699812834641E-12 5.155469002118738E-11 -5.100043085783336E-11 2.097852289848218E-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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