+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   118401 LINEAR (1999 RE70) Classification: Main-belt Asteroid          SPK-ID: 2118401 [ 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 69 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1930361719027661 4.8107e-08   a 3.193289164470346 2.6286e-08 au q 2.576868848382408 1.6229e-07 au i .2347279665880698 4.9262e-06 deg node 345.8904832201214 0.0011187 deg peri 35.09102741314926 0.0011188 deg M 237.9308603247075 1.5681e-05 deg tp 2459907.239200466072 (2022-Nov-23.73920047) 9.7596e-05 TDB period 2084.278736170065 5.71 2.5736e-05 7.046e-08 d yr n .1727216200753996 2.1327e-09 deg/d Q 3.809709480558284 3.136e-08 au   Orbit Determination Parameters    # obs. used (total)      739      data-arc span      7616 days (20.85 yr)      first obs. used      1999-08-17      last obs. used      2020-06-23      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .57611      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 16:57:06   Additional Information  Earth MOID = 1.57838 au   Jupiter MOID = 1.65407 au   T_jup = 3.167  [ 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 15.21   n/a E2021B55   diameter diameter 3.500 km 0.100 urn:nasa:pds:neowise_diameters_albedos::2.0[ambos] (http://adsabs.harvard.edu/abs/2012ApJ...747...49B)   geometric albedo albedo 0.070   0.030 urn:nasa:pds:neowise_diameters_albedos::2.0[ambos] (http://adsabs.harvard.edu/abs/2012ApJ...747...49B)   118401 LINEAR           Discovered 1999 Sept. 7 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. LINEAR is the acronym for Lincoln Laboratory Near-Earth Asteroid Research. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20060613/MPCPages.arc Last Updated: 2008-05-22 [ show close-approach data ] Alternate Designations  1999 RE70 = 176P = 2001 AR7  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-14 12:11 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin