+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   19620 Auckland (1999 QG) Classification: Main-belt Asteroid          SPK-ID: 2019620 [ 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 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1439883100094311 3.3754e-08   a 2.69562382320595 1.192e-08 au q 2.307485504481363 9.037e-08 au i 14.05692343401144 4.4823e-06 deg node 65.69247490629964 1.5545e-05 deg peri 30.27766206643179 2.2372e-05 deg M 185.8752061777224 1.6434e-05 deg tp 2459982.389660437574 (2023-Feb-06.88966044) 7.5882e-05 TDB period 1616.543351343879 4.43 1.0723e-05 2.936e-08 d yr n .2226973991762867 1.4772e-09 deg/d Q 3.083762141930536 1.3637e-08 au   Orbit Determination Parameters    # obs. used (total)      1702      data-arc span      13755 days (37.66 yr)      first obs. used      1982-12-13      last obs. used      2020-08-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .45596      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:59:50   Additional Information  Earth MOID = 1.33368 au   Jupiter MOID = 2.19458 au   T_jup = 3.312  [ 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 13.77   n/a E2021B10   diameter diameter 4.721 km 0.118 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.288   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   19620 Auckland           Discovered 1999 Aug. 18 at Auckland. The largest city in New Zealand, Auckland is renowned for its beautiful harbors and its volcanic cones. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010309/MPCPages.arc Last Updated: 2009-05-11 Alternate Designations  1999 QG = 1982 XK1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-19 16:27 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin