+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   7504 Kawakita (1997 AF1) Classification: Main-belt Asteroid          SPK-ID: 2007504 [ 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 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1955872454684758 3.2292e-08   a 3.173968994162398 1.4236e-08 au q 2.553181141391825 1.0035e-07 au i 1.239634064160551 3.7191e-06 deg node 51.28246055540697 0.0001793 deg peri 81.17250415520959 0.00017965 deg M 78.41718834814745 1.0047e-05 deg tp 2458750.604952360699 (2019-Sep-24.10495236) 5.7145e-05 TDB period 2065.391791798088 5.65 1.3895e-05 3.804e-08 d yr n .1743010703487843 1.1727e-09 deg/d Q 3.79475684693297 1.702e-08 au   Orbit Determination Parameters    # obs. used (total)      1895      data-arc span      15234 days (41.71 yr)      first obs. used      1978-10-27      last obs. used      2020-07-12      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .483      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 19:46:57   Additional Information  Earth MOID = 1.56793 au   Jupiter MOID = 1.25713 au   T_jup = 3.171  [ 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 13.59   n/a E2021B10   diameter diameter 10.304 km 0.223 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.073   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   7504 Kawakita           Discovered 1997 Jan. 2 by T. Kobayashi at Oizumi. Hideyo Kawakita (b. 1970) is on the staff at the Gunma Astronomical Observatory. His scientific interests include comets, planets, and formation of our solar system. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20030501/MPCPages.arc Last Updated: 2003-10-02 [ show close-approach data ] Alternate Designations  1997 AF1 = 1978 UR7 = 1981 JX5 = 1995 TP3  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jun-25 02:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin