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7542 Johnpond (1953 GN)
Classification: Main-belt Asteroid          SPK-ID: 2007542
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2457400.5 (2016-Jan-13.0) TDB
Reference: JPL 18 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1311816694263003 6.0861e-08  
a 2.25935694892428 8.9695e-09 au
q 1.962970732534481 1.3717e-07 au
i 5.81417476716745 6.6461e-06 deg
node 165.1731662352313 4.0226e-05 deg
peri 38.8958311977354 4.4425e-05 deg
M 171.1077817079426 1.9587e-05 deg
tp 2456810.919703849536
(2014-Jun-02.41970385)
6.7161e-05 JED
period 1240.43982392599
3.40
7.3867e-06
2.022e-08
d
yr
n .290219640692122 1.7282e-09 deg/d
Q 2.55574316531408 1.0146e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1321  
   data-arc span      22891 days (62.67 yr)  
   first obs. used      1953-04-07  
   last obs. used      2015-12-09  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55154  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Jan-04 13:04:02  

Additional Information
 Earth MOID = .963548 au 
 Jupiter MOID = 2.40559 au 
 T_jup = 3.603 
[ 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 14.3 mag n/a MPO347585  

7542 Johnpond           Discovered 1953 Apr. 7 by K. Reinmuth at Heidelberg.
John Pond (1767-1836), sixth Astronomer Royal, is famous for the introduction of then-modern transit instruments at Greenwich Observatory and for publishing a high-precision star catalogue. Pond received the Copley Medal of the Royal Society. The name was suggested by L. D. Schmadel.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20090806/MPCPages.arcLast Updated: 2011-05-09

[ show close-approach data ]
Alternate Designations
 1953 GN = 1991 PX1 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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