+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1957242685090385 3.2427e-08   a 3.174457637018125 1.4316e-08 au q 2.553139238099821 1.0081e-07 au i 1.239595981485459 3.722e-06 deg node 51.28289848885471 0.00017996 deg peri 81.19723503763954 0.00018031 deg M 43.52397781972909 9.9992e-06 deg tp 2458750.736592887870 (2019-Sep-24.23659289) 5.7125e-05 TDB period 2065.868770836685 5.66 1.3975e-05 3.826e-08 d yr n .1742608267679067 1.1788e-09 deg/d Q 3.795776035936429 1.7118e-08 au   Orbit Determination Parameters    # obs. used (total)      1879      data-arc span      15234 days (41.71 yr)      first obs. used      1978-10-27      last obs. used      2020-07-12      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48383      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 03:27:40   Additional Information  Earth MOID = 1.56797 au   Jupiter MOID = 1.25657 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-Mar-01 02:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin