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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 2456800.5 (2014-May-23.0) TDB
Reference: JPL 8 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .01831813302387237 6.5451e-08  
a 2.363930626177864 1.2218e-08 AU
q 2.320627830508331 1.5507e-07 AU
i 3.80026447273841 7.565e-06 deg
node 352.93415936983 7.4443e-05 deg
peri 213.865138679825 0.00017904 deg
M 193.7065779725322 0.00016479 deg
tp 2457413.729568542788
(2016-Jan-26.22956854)
0.00060782 JED
period 1327.548871048783
3.63
1.0292e-05
2.818e-08
d
yr
n .2711764574931202 2.1024e-09 deg/d
Q 2.407233421847396 1.2442e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      1285  
   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      .48801  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jan-21 22:17:22  

Additional Information
 Earth MOID = 1.3165 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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