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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 ]

[ show orbit diagram ]
Orbital Elements at Epoch 2458600.5 (2019-Apr-27.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .08063289695872222 5.7166e-08  
a 3.155629846569385 2.8222e-08 au
q 2.901182270311087 1.9123e-07 au
i 22.85116764412025 6.7492e-06 deg
node 153.8283190235221 1.268e-05 deg
peri 63.42233087829 4.2952e-05 deg
M 307.0907235960461 4.4177e-05 deg
tp 2458901.424003304750
(2020-Feb-21.92400330)
0.00025257 TDB
period 2047.516967773435
5.61
2.7468e-05
7.52e-08
d
yr
n .1758227187692031 2.3587e-09 deg/d
Q 3.410077422827683 3.0498e-08 au
  Orbit Determination Parameters
   # obs. used (total)      715  
   data-arc span      10318 days (28.25 yr)  
   first obs. used      1991-02-20  
   last obs. used      2019-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55321  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:04:12  

Additional Information
 Earth MOID = 1.96713 au 
 Jupiter MOID = 1.69631 au 
 T_jup = 3.080 
[ hide covariance matrix ]
Orbital Elements at Epoch 2456619.5 (2013-Nov-23.0) TDB
Reference: JPL 15 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .07981526088448676 5.7568e-08  
q 2.903603140882981 1.9238e-07 au
tp 2456847.410517012514
(2014-Jul-08.91051701)
0.00024538 TDB
node 153.8603824416932 1.268e-05 deg
peri 62.48877963416849 4.3059e-05 deg
i 22.85013976572372 6.7491e-06 deg
  Orbit Determination Parameters
   # obs. used (total)      715  
   data-arc span      10318 days (28.25 yr)  
   first obs. used      1991-02-20  
   last obs. used      2019-05-22  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55321  
   source      ORB  
   producer      Otto Matic  
   solution date      2019-Jul-13 04:04:12  

Additional Information
 Jupiter MOID = 1.69631 au 
 T_jup = 3.080 
Orbit Covariance (6×6)
  e q tp node peri i
e 3.314054201678106E-15 -1.098722839362872E-14 -6.43007664831625E-12 -9.593303685698782E-15 -1.006860296628609E-12 -3.477964376620791E-15
q -1.098722839362872E-14 3.700875933268318E-14 2.175221440476564E-11 3.214901348866554E-14 3.396437640220992E-12 1.944759264358268E-14
tp -6.43007664831625E-12 2.175221440476564E-11 6.02120590928852E-8 8.459688288910884E-11 1.01188377228448E-8 3.131031714293603E-11
node -9.593303685698782E-15 3.214901348866554E-14 8.459688288910884E-11 1.60781250517898E-10 -1.332704577848359E-10 9.6368800710702E-12
peri -1.006860296628609E-12 3.396437640220992E-12 1.01188377228448E-8 -1.332704577848359E-10 1.854037377230702E-9 -3.179383864204692E-12
i -3.477964376620791E-15 1.944759264358268E-14 3.131031714293603E-11 9.6368800710702E-12 -3.179383864204692E-12 4.554996683203152E-11

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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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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