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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 2457600.5 (2016-Jul-31.0) TDB
Reference: JPL 19 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1312994539928387 5.9214e-08  
a 2.259084119070858 8.9693e-09 au
q 1.962467607712961 1.3339e-07 au
i 5.814167764404423 6.5318e-06 deg
node 165.1731174494165 4.0154e-05 deg
peri 38.93155719882029 4.4255e-05 deg
M 229.115832954283 1.9273e-05 deg
tp 2458051.401461969475
(2017-Oct-24.90146197)
6.6821e-05 JED
period 1240.215145750302
3.40
7.3861e-06
2.022e-08
d
yr
n .2902722170694086 1.7287e-09 deg/d
Q 2.555700630428754 1.0147e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1328  
   data-arc span      22915 days (62.74 yr)  
   first obs. used      1953-04-07  
   last obs. used      2016-01-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .55226  
   data source      ORB  
   producer      Otto Matic  
   solution date      2016-Feb-25 18:24:58  

Additional Information
 Earth MOID = .962892 au 
 Jupiter MOID = 2.40604 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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