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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 ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 33 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1044348647860534 3.4083e-08  
a 3.037004078474988 1.472e-08 au
q 2.71983496818476 1.0986e-07 au
i 9.936631321299169 4.2273e-06 deg
node 194.0775292327736 2.0334e-05 deg
peri 97.8659488693563 2.9875e-05 deg
M 313.1735925428897 2.0935e-05 deg
tp 2459251.951846190810
(2021-Feb-06.45184619)
0.00011243 TDB
period 1933.154165448291
5.29
1.4054e-05
3.848e-08
d
yr
n .1862241545109867 1.3539e-09 deg/d
Q 3.354173188765216 1.6257e-08 au
  Orbit Determination Parameters
   # obs. used (total)      2294  
   data-arc span      24407 days (66.82 yr)  
   first obs. used      1953-10-10  
   last obs. used      2020-08-06  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .48914  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Aug-24 23:59:56  

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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