+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   22860 Francylemp (1999 RA149) Classification: Main-belt Asteroid          SPK-ID: 2022860 [ 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 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1956796131781387 4.0839e-08   a 2.401466045893712 7.5544e-09 au q 1.931548098972796 9.7044e-08 au i .487299717499987 3.112e-06 deg node 265.3599547175875 0.00049113 deg peri 86.61841252997348 0.00049119 deg M 249.313545004173 9.0625e-06 deg tp 2459618.431475564659 (2022-Feb-07.93147556) 3.524e-05 TDB period 1359.293069860711 3.72 6.414e-06 1.756e-08 d yr n .2648435484460241 1.2497e-09 deg/d Q 2.871383992814627 9.0326e-09 au   Orbit Determination Parameters    # obs. used (total)      1605      data-arc span      16089 days (44.05 yr)      first obs. used      1976-05-03      last obs. used      2020-05-21      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .5386      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 04:13:56   Additional Information  Earth MOID = .924333 au   Jupiter MOID = 2.56324 au   T_jup = 3.499  [ 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 15.03   n/a E2021B10   diameter diameter 2.252 km 0.262 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.264   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   22860 Francylemp           Discovered 1999 Sept. 9 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Francy M. Lemp mentored a finalist in the 2006 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition. She teaches at the Lemp Home School, Waterford, Michigan. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20061009/MPCPages.arc Last Updated: 2006-10-14 [ show close-approach data ] Alternate Designations  1999 RA149 = 1976 JJ5  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-21 05:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin