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8678 Bal (1992 ER6)
Classification: Main-belt Asteroid          SPK-ID: 2008678
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 25 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1110292456325868 3.1894e-08  
a 3.161460876512713 1.9303e-08 au
q 2.810446260296569 1.0279e-07 au
i 5.766856536210727 4.3397e-06 deg
node 57.39697349811479 4.0997e-05 deg
peri 221.7827551288323 4.622e-05 deg
M 262.3835442534709 2.2388e-05 deg
tp 2459557.237761553548
(2021-Dec-08.73776155)
0.00012873 TDB
period 2053.194746997394
5.62
1.8804e-05
5.148e-08
d
yr
n .175336509372268 1.6058e-09 deg/d
Q 3.512475492728856 2.1446e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1292  
   data-arc span      10199 days (27.92 yr)  
   first obs. used      1992-03-01  
   last obs. used      2020-02-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55819  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 19:00:51  

Additional Information
 Earth MOID = 1.79748 au 
 Jupiter MOID = 1.60874 au 
 T_jup = 3.187 
[ 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 13.6   n/a MPO337330  
diameter diameter 9.906 km 0.261 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.086   0.013 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8678 Bäl           Discovered 1992 Mar. 1 at the European Southern Observatory in the course of the Uppsala-ESO Survey of Asteroids and Comets.
Bäl is a small and typical country parish on the Swedish island of Gotland, often associated on Gotland with the well-known song "Farewell to Bäl".
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19991123/MPCPages.arcLast Updated: 2010-06-11

[ show close-approach data ]
Alternate Designations
 1992 ER6 = 1995 WY1 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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