+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   20693 Ramondiaz (1999 VV81) Classification: Main-belt Asteroid          SPK-ID: 2020693 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1331771004451874 3.4479e-08   a 3.112358879047656 1.9211e-08 au q 2.697863947991256 1.11e-07 au i .2307048132784229 3.965e-06 deg node 258.1370606821242 0.0009869 deg peri 5.389585339921211 0.00098702 deg M 49.81741614800202 1.5936e-05 deg tp 2458922.968918761655 (2020-Mar-14.46891876) 8.8441e-05 TDB period 2005.54739629569 5.49 1.8569e-05 5.084e-08 d yr n .1795021153152159 1.662e-09 deg/d Q 3.526853810104056 2.1769e-08 au   Orbit Determination Parameters    # obs. used (total)      1433      data-arc span      10828 days (29.65 yr)      first obs. used      1991-02-22      last obs. used      2020-10-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .52225      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 03:27:16   Additional Information  Earth MOID = 1.68045 au   Jupiter MOID = 1.54507 au   T_jup = 3.205  [ 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 13.94   n/a E2021B10   diameter diameter 7.658 km 0.374 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.083   0.015 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   20693 Ramondiaz           Discovered 1999 Nov. 5 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Jose Ramon Diaz Navarrete (b. 1986) was awarded second place in the 2004 Intel International Science and Engineering Fair for his computer science team project. He attends the C.B.T.i.s. No. 168, Aguascalientes, Mexico. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20041226/MPCPages.arc Last Updated: 2004-12-25 [ show close-approach data ] Alternate Designations  1999 VV81 = 1997 EK55  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-21 14:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin