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8537 Billochbull (1993 FG24)
Classification: Main-belt Asteroid          SPK-ID: 2008537
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 30 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1044348578288332 3.8079e-08  
a 3.037004074283109 1.7465e-08 au
q 2.719834985559766 1.1803e-07 au
i 9.936626566162559 5.0786e-06 deg
node 194.0775534818194 2.4498e-05 deg
peri 97.86592151358614 3.4206e-05 deg
M 313.1735975542802 2.5149e-05 deg
tp 2459251.951818759675
(2021-Feb-06.45181876)
0.00013571 TDB
period 1933.154161445886
5.29
1.6676e-05
4.566e-08
d
yr
n .1862241548965454 1.6064e-09 deg/d
Q 3.354173163006453 1.9289e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1898  
   data-arc span      24222 days (66.32 yr)  
   first obs. used      1953-10-10  
   last obs. used      2020-02-03  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52627  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-22 18:57:05  

Additional Information
 Earth MOID = 1.72733 au 
 Jupiter MOID = 1.86739 au 
 T_jup = 3.210 
[ 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 12.4   n/a MPO395082  
diameter diameter 11.540 km 0.173 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.167   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

8537 Billochbull           Discovered 1993 Mar. 21 by C.-I. Lagerkvist at the European Southern Observatory.
Named for the fictional cats Bill and Bull, dim and fawning cronies of the bad cat Måns of the Knutsson stories.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 19990202/MPCPages.arcLast Updated: 2010-06-11

[ show close-approach data ]
Alternate Designations
 1993 FG24 = 1977 FX1 = 1988 HB1 = 1995 SS29 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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