+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14026 Esquerdo (1994 ST7) Classification: Main-belt Asteroid          SPK-ID: 2014026 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1602378336811339 3.3386e-08   a 2.360867253530103 7.2e-09 au q 1.982566999215712 7.9423e-08 au i 2.638115778436774 3.7759e-06 deg node 158.2212716982436 8.2761e-05 deg peri 128.8426105356844 8.3616e-05 deg M 145.4802019796713 1.1653e-05 deg tp 2458665.064485336936 (2019-Jun-30.56448534) 4.2813e-05 TDB period 1324.969189317168 3.63 6.0612e-06 1.659e-08 d yr n .2717044312445698 1.2429e-09 deg/d Q 2.739167507844495 8.3537e-09 au   Orbit Determination Parameters    # obs. used (total)      1235      data-arc span      16159 days (44.24 yr)      first obs. used      1976-10-22      last obs. used      2021-01-18      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .52969      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 00:16:00   Additional Information  Earth MOID = .965584 au   Jupiter MOID = 2.41544 au   T_jup = 3.532  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.3   n/a MPO395139   diameter diameter 4.377 km 0.194 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.111   0.010 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   14026 Esquerdo           Discovered 1994 Sept. 28 by Spacewatch at Kitt Peak. Gil Esquerdo (b. 1976), a former research assistant at the Planetary Science Institute in Tucson, was appointed in 2002 research assistant for the Near-Earth-Asteroid Physical Study project at the University of Western Ontario. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20030614/MPCPages.arc Last Updated: 2005-04-26 Alternate Designations  1994 ST7 = 1976 UF21 = 1976 UV16 = 1997 JM18 = 1997 LR15  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-18 10:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin