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12542 Laver (1998 PN1)
Classification: Main-belt Asteroid          SPK-ID: 2012542
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 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .1462116093676063 3.7815e-08  
a 3.171833685597547 2.1566e-08 au
q 2.708074777779943 1.2253e-07 au
i 5.054919739182995 5.1387e-06 deg
node 34.25423807619937 4.6157e-05 deg
peri 291.6787549779272 4.9833e-05 deg
M 299.6141268752613 2.1741e-05 deg
tp 2459346.596244634944
(2021-May-12.09624464)
0.00012638 TDB
period 2063.307883471447
5.65
2.1043e-05
5.761e-08
d
yr
n .174477111672889 1.7794e-09 deg/d
Q 3.63559259341515 2.4719e-08 au
  Orbit Determination Parameters
   # obs. used (total)      1187  
   data-arc span      9747 days (26.69 yr)  
   first obs. used      1993-10-09  
   last obs. used      2020-06-16  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .55961  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Jun-23 17:28:26  

Additional Information
 Earth MOID = 1.70183 au 
 Jupiter MOID = 1.73107 au 
 T_jup = 3.179 
[ 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 13.7   n/a MPO435819  

12542 Laver           Discovered 1998 Aug. 10 by J. Broughton at Reedy Creek Observatory.
Rodney Laver (b. 1938) is a tennis player from the discoverer's home state of Queensland and widely regarded as one of the greats of the game. Dubbed the "Rockhampton Rocket", Laver is the only player to have won the grand slam twice, when in 1962 and 1969 he won all four major tournaments.
NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character)
Reference: 20010509/MPCPages.arcLast Updated: 2009-05-11

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Alternate Designations
 1998 PN1 = 1993 TF23 = 1997 HQ17 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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