+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   20692 (1999 VX73) Classification: Outer Main-belt Asteroid          SPK-ID: 2020692 [ 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 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07362565747097545 4.7146e-08   a 3.255701218265981 1.8647e-08 au q 3.015998075542092 1.564e-07 au i 2.412366472334895 3.6046e-06 deg node 77.25228005589025 0.00012297 deg peri 137.6838223501502 0.00012622 deg M 18.72126348155529 2.804e-05 deg tp 2459088.917035685653 (2020-Aug-27.41703569) 0.00016727 TDB period 2145.681416894829 5.87 1.8434e-05 5.047e-08 d yr n .1677788683657344 1.4414e-09 deg/d Q 3.495404360989869 2.0019e-08 au   Orbit Determination Parameters    # obs. used (total)      1663      data-arc span      13726 days (37.58 yr)      first obs. used      1982-12-13      last obs. used      2020-07-12      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50967      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 03:27:16   Additional Information  Earth MOID = 2.0086 au   Jupiter MOID = 1.46821 au   T_jup = 3.175  [ 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 13.27   n/a E2021B10   diameter diameter 11.317 km 0.147 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.087   0.008 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   20692 (1999 VX73)          Discovered 1999-Nov-01 by Spacewatch at Kitt Peak Reference: 20010109/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 VX73 = 1982 XG1 = 1998 QH63  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-21 15:17 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin