+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 67 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1929645773123113 4.871e-08   a 3.193157507575456 2.6643e-08 au q 2.576991218834525 1.6434e-07 au i .2347384798066805 5.1198e-06 deg node 345.8898641601518 0.0011542 deg peri 35.13782128139843 0.0011543 deg M 203.3174219443914 1.5524e-05 deg tp 2459907.583248935300 (2022-Nov-24.08324894) 9.8381e-05 TDB period 2084.149837646986 5.71 2.6084e-05 7.141e-08 d yr n .1727323023983926 2.1618e-09 deg/d Q 3.809323796316388 3.1784e-08 au   Orbit Determination Parameters    # obs. used (total)      707      data-arc span      7559 days (20.70 yr)      first obs. used      1999-08-17      last obs. used      2020-04-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .57792      source      ORB      producer      Otto Matic      solution date      2020-May-20 20:20:27   Additional Information  Earth MOID = 1.57984 au   Jupiter MOID = 1.65325 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 15.2   n/a MPO385519   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 ] 2020-Oct-26 01:40 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin