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JPL Small-Body Database Browser
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6379 Vrba (1987 VA1)
Classification: Main-belt Asteroid          SPK-ID: 2006379
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 35 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07818301019898541 4.9679e-08  
a 2.987466007430048 1.6547e-08 au
q 2.753896922102022 1.5302e-07 au
i 13.90596932013911 4.2961e-06 deg
node 31.80212597220279 1.8209e-05 deg
peri 174.4615669041601 3.5609e-05 deg
M 319.0395358408362 3.284e-05 deg
tp 2459215.092853179745
0.00017257 TDB
period 1886.048625926631
n .1908752484168477 1.5858e-09 deg/d
Q 3.221035092758073 1.784e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2147  
   data-arc span      31782 days (87.01 yr)  
   first obs. used      1933-04-24  
   last obs. used      2020-04-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .41961  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-May-20 02:33:14  

Additional Information
 Earth MOID = 1.74938 au 
 Jupiter MOID = 1.73881 au 
 T_jup = 3.208 
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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 11.6   n/a MPO350853  
diameter diameter 15.158 km 0.139 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  
rotation period rot_per 5.11 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Published Reference List:
[Addleman, D.; Covele, B.; Duncan, A.; Johnson, J.; et al. (2005) Minor Planet Bull. 32, 76-78.]
geometric albedo albedo 0.176   0.024 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (  

6379 Vrba           Discovered 1987 Nov. 15 by A. Mrkos at Klet.
Karel Vrba (1845-1922) was professor of mineralogy at Charles University in Prague and founder of the mineralogical collections in the National Museum of Prague, including meteorites. The name was suggested by J. Ticha and M. Šolc.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20000726/MPCPages.arcLast Updated: 2013-03-29

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Alternate Designations
 1987 VA1 = 1933 HC = 1951 WZ = 1971 TB1 = 1974 FU1 = 1984 DR1 = 1987 WD4 = 1989 AB10 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
FirstGov 2020-May-31 17:56 UT
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