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JPL Small-Body Database Browser
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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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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 16 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08070931083357709 5.7072e-08  
a 3.155661282737624 2.7566e-08 au
q 2.900970035383668 1.9045e-07 au
i 22.85206248522037 6.7437e-06 deg
node 153.8268914814761 1.2644e-05 deg
peri 63.63964135332548 4.2823e-05 deg
M 17.23644098418459 4.4286e-05 deg
tp 2458902.465464600638
(2020-Feb-22.96546460)
0.00025148 TDB
period 2047.547563685172
5.61
2.6829e-05
7.345e-08
d
yr
n .1758200915011091 2.3038e-09 deg/d
Q 3.41035253009158 2.9791e-08 au
  Orbit Determination Parameters
   # obs. used (total)      723  
   data-arc span      10548 days (28.88 yr)  
   first obs. used      1991-02-20  
   last obs. used      2020-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .5588  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jan-29 10:39:19  

Additional Information
 Earth MOID = 1.96692 au 
 Jupiter MOID = 1.69542 au 
 T_jup = 3.079 
[ 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 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

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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