+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   74559 (1999 LQ14) Classification: Main-belt Asteroid          SPK-ID: 2074559 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1978850035058007 3.2681e-08   a 2.186241537852807 9.9265e-09 au q 1.753617123470277 6.8725e-08 au i 7.931575492556351 4.7206e-06 deg node 80.92894888326092 4.385e-05 deg peri 215.524212135534 4.8633e-05 deg M 198.0006222093513 2.2187e-05 deg tp 2459731.820392557741 (2022-Jun-01.32039256) 7.4782e-05 TDB period 1180.716518355838 3.23 8.0414e-06 2.202e-08 d yr n .3048996049460748 2.0766e-09 deg/d Q 2.618865952235336 1.1891e-08 au   Orbit Determination Parameters    # obs. used (total)      392      data-arc span      7922 days (21.69 yr)      first obs. used      1999-05-12      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .6124      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 06:58:14   Additional Information  Earth MOID = .742475 au   Jupiter MOID = 2.58276 au   T_jup = 3.639  [ hide covariance matrix ] Orbital Elements at Epoch 2457726.5 (2016-Dec-04.0) TDB Reference: JPL 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1980993910584953 3.2646e-08   q 1.752827654602075 6.8659e-08 au tp 2457371.047202090461 (2015-Dec-14.54720209) 6.692e-05 TDB node 80.93663767149117 4.3861e-05 deg peri 215.5794460967371 4.865e-05 deg i 7.931316197825223 4.7219e-06 deg   Orbit Determination Parameters    # obs. used (total)      392      data-arc span      7922 days (21.69 yr)      first obs. used      1999-05-12      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .6124      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 06:58:14   Additional Information  Jupiter MOID = 2.58276 au   T_jup = 3.639  Orbit Covariance (6×6)   e q tp node peri i e 1.06573398039376E-15 -2.228734238157716E-15 5.21121037452893E-13 -1.630388172901683E-14 1.619599586807154E-13 9.197835508732259E-16 q -2.228734238157716E-15 4.714105765922116E-15 -9.298458697898302E-13 3.019767459116407E-14 -2.836787231159527E-13 -1.921167580224386E-15 tp 5.21121037452893E-13 -9.298458697898302E-13 4.478276010958111E-9 -6.466767711276459E-11 1.45031818501706E-9 -2.76614659829307E-12 node -1.630388172901683E-14 3.019767459116407E-14 -6.466767711276459E-11 1.923764116283825E-9 -1.925650180790186E-9 -1.140442444773306E-10 peri 1.619599586807154E-13 -2.836787231159527E-13 1.45031818501706E-9 -1.925650180790186E-9 2.366812579220239E-9 1.121863101808849E-10 i 9.197835508732259E-16 -1.921167580224386E-15 -2.76614659829307E-12 -1.140442444773306E-10 1.121863101808849E-10 2.229659848214372E-11 [ 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 16.7   n/a MPO337820   74559 (1999 LQ14)          Discovered 1999-Jun-10 by LINEAR at Socorro Reference: 20040415/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-25 08:43 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin