+ 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 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03277899708813407 3.0927e-08   a 2.662531821355753 1.0133e-08 au q 2.575256698536469 8.0453e-08 au i 2.503636425553012 3.8851e-06 deg node 344.4948580900906 7.7575e-05 deg peri 133.9380772139002 0.00010155 deg M 199.407397616035 6.5586e-05 deg tp 2460104.386569046063 (2023-Jun-08.88656905) 0.0002904 TDB period 1586.867396589545 4.34 9.0585e-06 2.48e-08 d yr n .2268620558804742 1.295e-09 deg/d Q 2.749806944175038 1.0465e-08 au   Orbit Determination Parameters    # obs. used (total)      1820      data-arc span      10867 days (29.75 yr)      first obs. used      1991-10-06      last obs. used      2021-07-07      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51411      source      ORB      producer      Otto Matic      solution date      2021-Jul-09 10:10:13   Additional Information  Earth MOID = 1.59241 au   Jupiter MOID = 2.25741 au   T_jup = 3.383  [ 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-Aug-02 07:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin