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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 ]

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Orbital Elements at Epoch 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 17 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01745754096181676 5.3735e-08  
a 2.364106208053915 1.1792e-08 au
q 2.322834727088729 1.2787e-07 au
i 3.800550782364317 6.2022e-06 deg
node 352.9187437052121 6.8072e-05 deg
peri 211.9423414197581 0.00016445 deg
M 52.47049870139482 0.00015102 deg
tp 2457406.986355064076
(2016-Jan-19.48635506)
0.00055704 JED
period 1327.696780116189
3.64
9.934e-06
2.72e-08
d
yr
n .2711462476910548 2.0288e-09 deg/d
Q 2.405377689019102 1.1998e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1551  
   data-arc span      22612 days (61.91 yr)  
   first obs. used      1954-05-23  
   last obs. used      2016-04-19  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .44364  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Apr-25 12:47:01  

Additional Information
 Earth MOID = 1.31841 au 
 Jupiter MOID = 2.55701 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 13.0 mag n/a MPO337286  

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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