+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   19576 (1999 LP22) Classification: Main-belt Asteroid          SPK-ID: 2019576 [ 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 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1898415782926676 1.0925e-08   a 2.164945730195872 5.3791e-09 au q 1.753949015857516 2.3807e-08 au i 2.831617257607249 6.8136e-07 deg node 272.489577049011 1.5077e-05 deg peri 359.1622464826544 1.55e-05 deg M 263.670520794107 4.9173e-06 deg tp 2459511.833360672949 (2021-Oct-24.33336067) 1.6296e-05 TDB period 1163.506859646816 3.19 4.3364e-06 1.187e-08 d yr n .3094094349467596 1.1532e-09 deg/d Q 2.575942444534228 6.4003e-09 au   Orbit Determination Parameters    # obs. used (total)      1897      data-arc span      10039 days (27.49 yr)      first obs. used      1993-09-19      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51408      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:58:39   Additional Information  Earth MOID = .735896 au   Jupiter MOID = 2.52569 au   T_jup = 3.669  [ 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 14.63   n/a E2021B10   diameter diameter 2.530 km 0.319 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   geometric albedo albedo 0.418   0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   19576 (1999 LP22)          Discovered 1999-Jun-09 by LINEAR at Socorro Reference: 20001211/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 LP22 = 1993 SV2 = 2000 QO217  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-19 16:34 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin