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13551 Gadsden (1992 FL1)
Classification: Mars-crossing Asteroid          SPK-ID: 2013551
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

[ show orbit diagram ]
Orbital Elements at Epoch 2456800.5 (2014-May-23.0) TDB
Reference: JPL 4 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4266608356676512 1.2371e-07  
a 2.521445585483926 1.342e-08 AU
q 1.445643504890844 3.1844e-07 AU
i 5.278289075318318 8.8741e-06 deg
node 317.3217511182505 5.6317e-05 deg
peri 238.0760709719867 5.8123e-05 deg
M 183.8948908344049 1.4594e-05 deg
tp 2457515.889040041539
(2016-May-07.38904004)
6.4761e-05 JED
period 1462.422388738217
4.00
1.1675e-05
3.196e-08
d
yr
n .2461669096235659 1.9653e-09 deg/d
Q 3.597247666077007 1.9146e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      645  
   data-arc span      9268 days (25.37 yr)  
   first obs. used      1988-05-15  
   last obs. used      2013-09-29  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .56722  
   data source      ORB  
   producer      Otto Matic  
   solution date      2013-Oct-22 20:38:53  

Additional Information
 Earth MOID = .455165 AU 
 T_jup = 3.317 
[ 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 16.3 mag n/a MPO267760  

13551 Gadsden           Discovered 1992 Mar. 26 by R. H. McNaught at Siding Spring.
Michael Gadsden (1933-2003) worked during the International Geophysical Year on airglow and aurorae in New Zealand and Antarctica and later at Boulder and Aberdeen. He was an authority on noctilucent clouds and secretary general of the International Association of Geomagnetism and Aeronomy.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20070106/MPCPages.arcLast Updated: 2007-01-09

[ show close-approach data ]
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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