+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   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 ] [ show orbit diagram ] 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.arc Last Updated: 2009-05-11 [ show close-approach data ] Alternate Designations  1998 PN1 = 1993 TF23 = 1997 HQ17  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-24 15:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin