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

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 21 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .4263382654470747 6.1412e-08  
a 2.522202109530923 4.1813e-09 au
q 1.446890837046557 1.5654e-07 au
i 5.275590988731069 5.1383e-06 deg
node 317.2737446388149 2.674e-05 deg
peri 238.1619867097959 2.7661e-05 deg
M 5.26055843189336 6.5698e-06 deg
tp 2458979.120497159308
(2020-May-09.62049716)
2.6656e-05 TDB
period 1463.080606801444
4.01
3.6383e-06
9.961e-09
d
yr
n .2460561628159534 6.1187e-10 deg/d
Q 3.59751338201529 5.964e-09 au
  Orbit Determination Parameters
   # obs. used (total)      1451  
   data-arc span      11716 days (32.08 yr)  
   first obs. used      1988-05-15  
   last obs. used      2020-06-12  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .49525  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:37:25  

Additional Information
 Earth MOID = .455995 au 
 Jupiter MOID = 1.4217 au 
 T_jup = 3.317 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 16.3   n/a MPO416857  

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

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Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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