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65100 Birtwhistle (2002 CR15)
Classification: Main-belt Asteroid          SPK-ID: 2065100
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

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Orbital Elements at Epoch 2455200.5 (2010-Jan-04.0) TDB
Reference: MPO159044 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e 0.0785290 n/a  
a 3.1540456 n/a AU
q 2.9063616 n/a AU
i 22.92810 n/a deg
node 154.20121 n/a deg
peri 57.82763 n/a deg
M 75.43094 n/a deg
tp 2454771.8060159
(2008-Nov-01.30601590)
n/a JED
period 2045.9752229
5.60
n/a
n/a
d
yr
n 0.17595521 n/a deg/d
Q 3.4017296 n/a AU
  Orbit Determination Parameters
   # obs. used (total)      236  
   first obs. used      1991-??-??  
   last obs. used      2009-06-22  
   # oppositions      9  
   planetary ephem.      DE403  
   quality code      0  
   fit RMS      0.56  
   data source      MPC:mpn  
   producer      MPC  

Additional Information
 T_jup = 3.079 

Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 13.8 mag n/a MPO159044  

65100 Birtwhistle           Discovered 2002 Feb. 8 by C. W. Juels and P. R. Holvorcem at Fountain Hills.
British amateur astronomer Peter Birtwhistle (b. 1958) was measuring positions of comets and NEAs photographically during 1982-1986 and in 2002 began CCD astrometry in Great Shefford, Berkshire. On 2003 Sept. 29 he provided confirmation of 2003 SQ222, whose passage at 84~000 km from the earth is the closest known.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20040107/MPCPages.arcLast Updated: 2004-01-07
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ]
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