+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   19430 Kristinaufer (1998 FO69) Classification: Main-belt Asteroid          SPK-ID: 2019430 [ 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 .1451595944766969 3.0059e-08   a 2.413538545332843 8.7819e-09 au q 2.06319026883845 7.4072e-08 au i 3.519431691833402 3.5894e-06 deg node 162.5409141232286 5.8452e-05 deg peri 336.3796678913262 5.9834e-05 deg M 62.56839465946132 1.3544e-05 deg tp 2458962.469670928785 (2020-Apr-22.96967093) 5.1172e-05 TDB period 1369.555970422831 3.75 7.4749e-06 2.047e-08 d yr n .2628589176160906 1.4347e-09 deg/d Q 2.763886821827235 1.0057e-08 au   Orbit Determination Parameters    # obs. used (total)      1655      data-arc span      15599 days (42.71 yr)      first obs. used      1977-09-09      last obs. used      2020-05-25      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50317      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:53:52   Additional Information  Earth MOID = 1.07686 au   Jupiter MOID = 2.25739 au   T_jup = 3.501  [ 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 14.52   n/a E2021B10   diameter diameter 2.788 km 0.499 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.328   0.084 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   19430 Kristinaufer           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Kristina Ann Ufer (b. 1984) was awarded fourth place in the 2003 Intel International Science and Engineering Fair for her environmental science project. She attends the Bellarmine Preparatory School, Tacoma, Washington, U.S.A. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20040830/MPCPages.arc Last Updated: 2004-09-06 [ show close-approach data ] Alternate Designations  1998 FO69 = 1977 RW11 = 1996 TU67  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-17 23:07 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin