+ 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 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .143049118484953 3.2732e-08   a 2.697480768037168 1.2009e-08 au q 2.311608522039337 8.7815e-08 au i 14.0434976303003 4.3402e-06 deg node 65.6183820525162 1.5414e-05 deg peri 30.38324243077768 2.2131e-05 deg M 229.4098942869793 1.6523e-05 deg tp 2459983.507614823949 (2023-Feb-08.00761482) 7.5929e-05 TDB period 1618.214030709308 4.43 1.0806e-05 2.959e-08 d yr n .2224674815371624 1.4856e-09 deg/d Q 3.083353014034998 1.3727e-08 au   Orbit Determination Parameters    # obs. used (total)      1736      data-arc span      14085 days (38.56 yr)      first obs. used      1982-12-13      last obs. used      2021-07-06      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .45724      source      ORB      producer      Otto Matic      solution date      2021-Jul-09 14:01:25   Additional Information  Earth MOID = 1.33816 au   Jupiter MOID = 2.19552 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 13.78   n/a MPCxxxxx   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-Jul-25 00:27 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin