+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   19433 Naftz (1998 FG72) Classification: Main-belt Asteroid          SPK-ID: 2019433 [ 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 .03352818199007899 3.0971e-08   a 2.660623066504891 9.9905e-09 au q 2.571417212124113 8.0678e-08 au i 2.503219257379267 3.8902e-06 deg node 344.5070828816081 7.791e-05 deg peri 133.0933770972764 0.00010101 deg M 155.8046403957773 6.4234e-05 deg tp 2458514.456992276841 (2019-Jan-30.95699228) 0.00028162 TDB period 1585.161277308341 4.34 8.9283e-06 2.444e-08 d yr n .2271062289707786 1.2792e-09 deg/d Q 2.749828920885669 1.0325e-08 au   Orbit Determination Parameters    # obs. used (total)      1801      data-arc span      10540 days (28.86 yr)      first obs. used      1991-10-06      last obs. used      2020-08-14      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51334      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:53:54   Additional Information  Earth MOID = 1.58811 au   Jupiter MOID = 2.26 au   T_jup = 3.384  [ 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 14.3   n/a MPO337422   diameter diameter 4.028 km 0.193 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.227   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   19433 Naftz           Discovered 1998 Mar. 20 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Douglas Calvin Naftz (b. 1986) was awarded fourth place in the 2003 Intel International Science and Engineering Fair for his environmental science project. He attends the Park City High School, Park City, Utah, 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 Alternate Designations  1998 FG72 = 1999 NF24  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-17 06:19 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin