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65100 Birtwhistle (2002 CR15)
Classification: Main-belt Asteroid          SPK-ID: 2065100
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 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .0807093161993787 4.4943e-08  
a 3.155661281990475 2.1816e-08 au
q 2.900970017764169 1.4243e-07 au
i 22.85206724863583 4.5672e-06 deg
node 153.8268915434545 1.2623e-05 deg
peri 63.63964023970461 3.2297e-05 deg
M 17.23644247169446 2.8021e-05 deg
tp 2458902.465456175046
(2020-Feb-22.96545618)
0.0001597 TDB
period 2047.547562957991
5.61
2.1233e-05
5.813e-08
d
yr
n .1758200915635511 1.8232e-09 deg/d
Q 3.41035254621678 2.3576e-08 au
  Orbit Determination Parameters
   # obs. used (total)      891  
   data-arc span      10710 days (29.32 yr)  
   first obs. used      1991-02-20  
   last obs. used      2020-06-17  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .52699  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 23:07:28  

Additional Information
 Earth MOID = 1.96692 au 
 Jupiter MOID = 1.69542 au 
 T_jup = 3.079 
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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 14.0   n/a MPO257290  
diameter diameter 9.473 km 0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  
geometric albedo albedo 0.059   0.007 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)  

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

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