+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   26246 Mikelake (1998 QN46) Classification: Main-belt Asteroid          SPK-ID: 2026246 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1804837700721111 4.8201e-08   a 2.382270639279874 7.5869e-09 au q 1.952309452970544 1.1777e-07 au i 2.818029354368716 4.7272e-06 deg node 166.5492197891263 5.5658e-05 deg peri 191.051678118505 5.6356e-05 deg M 12.13035616263398 7.7435e-06 deg tp 2459155.246088213870 (2020-Nov-01.74608821) 2.8891e-05 TDB period 1343.028021979305 3.68 6.4158e-06 1.757e-08 d yr n .2680509967837048 1.2805e-09 deg/d Q 2.812231825589203 8.9562e-09 au   Orbit Determination Parameters    # obs. used (total)      1429      data-arc span      16234 days (44.45 yr)      first obs. used      1976-09-25      last obs. used      2021-03-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .52586      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 05:14:44   Additional Information  Earth MOID = .946655 au   Jupiter MOID = 2.6341 au   T_jup = 3.514  [ hide covariance matrix ] Orbital Elements at Epoch 2457712.5 (2016-Nov-20.0) TDB Reference: JPL 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .181338816928192 4.8112e-08   q 1.950305725687388 1.1766e-07 au tp 2457813.220343023089 (2017-Feb-28.72034302) 2.9597e-05 TDB node 166.6095473689152 5.5685e-05 deg peri 191.3084173449743 5.6377e-05 deg i 2.817434946681397 4.7268e-06 deg   Orbit Determination Parameters    # obs. used (total)      1429      data-arc span      16234 days (44.45 yr)      first obs. used      1976-09-25      last obs. used      2021-03-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .52586      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 05:14:44   Additional Information  Jupiter MOID = 2.6341 au   T_jup = 3.514  Orbit Covariance (6×6)   e q tp node peri i e 2.314794795725673E-15 -5.654562563796547E-15 -1.439792200138957E-13 -4.653512354300256E-15 1.312865266241435E-15 -1.521801832715604E-15 q -5.654562563796547E-15 1.384384496085968E-14 2.986120140088091E-13 1.120390093738302E-14 -1.85240300316771E-14 3.764069654611629E-15 tp -1.439792200138957E-13 2.986120140088091E-13 8.76001349169855E-10 -4.320218305581199E-14 2.635077980589481E-10 -1.697095449192268E-13 node -4.653512354300256E-15 1.120390093738302E-14 -4.320218305581199E-14 3.100858660885801E-9 -3.096658104448268E-9 1.408434731760359E-11 peri 1.312865266241435E-15 -1.85240300316771E-14 2.635077980589481E-10 -3.096658104448268E-9 3.178388422353397E-9 -1.414433413664117E-11 i -1.521801832715604E-15 3.764069654611629E-15 -1.697095449192268E-13 1.408434731760359E-11 -1.414433413664117E-11 2.234237503664868E-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 15.34   n/a E2021B10   diameter diameter 4.974 km 1.254 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)   geometric albedo albedo 0.059   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2015ApJ...814..117N)   26246 Mikelake           Discovered 1998 Aug. 17 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Michael Lake mentored a finalist in the 2010 Intel Science Talent Search (STS), a science competition for high school seniors. He teaches at the Half Hollow Hills High School West, Dix Hills, New York. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20100228/MPCPages.arc Last Updated: 2010-10-29 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2154-Apr-28 16:23 00:01 Eunom 0.0319126522430561 0.0318992990843626 0.0319260054614257 4.47384830431875 4.47384820599697 2507910.182861569 1.12517381528734 668.889429374933 22.0150549583642 -5.91447011781477 23421.3783247782 T 29 CATAB v2.0f-lin.ifort 2021-Apr-13 05:14:49 2021-Apr-13 05:14 Alternate Designations  1998 QN46 = 1976 SW7 = 1980 WC1 = 1987 SW11  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-23 11:06 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin