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18413 Adamspencer (1993 LD1)
Classification: Main-belt Asteroid          SPK-ID: 2018413
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 7 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1211970157513865 9.1166e-08  
a 3.050432801632645 4.0115e-08 AU
q 2.680729449324628 2.9141e-07 AU
i 11.1937912414648 9.6913e-06 deg
node 335.4423156653839 2.9815e-05 deg
peri 339.190515344368 4.0419e-05 deg
M 261.6368032204145 2.9551e-05 deg
tp 2457332.205012252839
(2015-Nov-05.70501225)
0.00016388 JED
period 1945.990072282284
5.33
3.8386e-05
1.051e-07
d
yr
n .1849958050288442 3.6492e-09 deg/d
Q 3.420136153940663 4.4976e-08 AU
  Orbit Determination Parameters
   # obs. used (total)      607  
   data-arc span      14830 days (40.60 yr)  
   first obs. used      1973-09-24  
   last obs. used      2014-05-02  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-BIG16  
   condition code      0  
   fit RMS      .52674  
   data source      ORB  
   producer      Otto Matic  
   solution date      2014-Jun-09 22:06:36  

Additional Information
 Earth MOID = 1.66975 AU 
 T_jup = 3.197 
[ 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 13.8 mag n/a MPO263511  

18413 Adamspencer           Discovered 1993 June 13 by R. H. McNaught at Siding Spring Observatory.
Adam Spencer (b. 1969) is an Australian mathematics communicator, television and radio presenter. Spencer's career has moved from mathematics research to stand-up pure maths comedy and "The Sleek Geeks" science comedy duo. He holds positions promoting the understanding and development of science.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20120406/MPCPages.arcLast Updated: 2012-04-09

[ show close-approach data ]
Alternate Designations
 1993 LD1 = 5107 T-2 
Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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