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4137 Crabtree (1970 WC)
Classification: Main-belt Asteroid          SPK-ID: 2004137
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB
Reference: JPL 9 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .018223709081481 6.2269e-08  
a 2.364394281328207 1.3527e-08 AU
q 2.321306247791364 1.4787e-07 AU
i 3.800222056808411 7.3456e-06 deg
node 352.929550517904 7.0674e-05 deg
peri 213.2581949875502 0.00017511 deg
M 248.5551251657021 0.0001625 deg
tp 2457411.589020155068
(2016-Jan-24.08902015)
0.00059961 JED
period 1327.939463127998
3.64
1.1396e-05
3.12e-08
d
yr
n .2710966952906197 2.3264e-09 deg/d
Q 2.407482314865049 1.3773e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1284  
   data-arc span      21779 days (59.63 yr)  
   first obs. used      1954-05-23  
   last obs. used      2014-01-07  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .45927  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 17:58:48  

Additional Information
 Earth MOID = 1.31852 AU 
 T_jup = 3.546 
[ show covariance matrix ]

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

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 12.9 mag n/a MPO267724  

4137 Crabtree           Discovered 1970 Nov. 24 by L. Kohoutek at Bergedorf.
William Crabtree (1610-1644), a cloth merchant in Salford, near Manchester, became the second person knowingly to observe a transit of Venus, after he had been alerted to the 1639 event by Jeremiah Horrocks.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20050919/MPCPages.arcLast Updated: 2005-09-26

[ show close-approach data ]
Alternate Designations
 1970 WC = 1972 GK1 = 1977 RO6 = 1986 AV1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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