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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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Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB
Reference: JPL 36 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1803121907455648 4.4146e-08  
a 3.10680676058396 1.61e-08 au
q 2.546611627359935 1.3294e-07 au
i 5.190588888053714 4.0338e-06 deg
node 296.9339468010788 4.3345e-05 deg
peri 61.6696005593111 4.464e-05 deg
M 91.04405461295427 1.0337e-05 deg
tp 2458694.653349036374
(2019-Jul-30.15334904)
5.7271e-05 TDB
period 2000.183264256712
5.48
1.5548e-05
4.257e-08
d
yr
n .1799835077281179 1.399e-09 deg/d
Q 3.667001893807986 1.9003e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2063  
   data-arc span      16166 days (44.26 yr)  
   first obs. used      1976-12-16  
   last obs. used      2021-03-21  
   planetary ephem.      DE441  
   SB-pert. ephem.      SB441-N16  
   condition code      0  
   norm. resid. RMS      .47524  
   source      ORB  
   producer      Otto Matic  
   solution date      2021-May-03 22:15:44  

Additional Information
 Earth MOID = 1.54625 au 
 Jupiter MOID = 1.8279 au 
 T_jup = 3.189 
[ show covariance matrix ]

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 12.97   n/a MPCxxxxx  
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

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