+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   4910 Kawasato (1953 PR) Classification: Mars-crossing Asteroid          SPK-ID: 2004910 [ 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 41 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3252275517862193 1.7005e-08   a 2.44062172966713 7.2902e-09 au q 1.646864299691242 4.0408e-08 au i 4.998673956033792 3.9131e-07 deg node 180.0088028668194 3.0324e-06 deg peri 155.0636168046155 3.3384e-06 deg M 239.0644025140541 3.0828e-06 deg tp 2459668.343705924532 (2022-Mar-29.84370592) 1.3938e-05 TDB period 1392.672940259831 3.81 6.2399e-06 1.708e-08 d yr n .2584957240088508 1.1582e-09 deg/d Q 3.234379159643019 9.6612e-09 au   Orbit Determination Parameters    # obs. used (total)      2561      data-arc span      24688 days (67.59 yr)      first obs. used      1953-08-11      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .45664      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 16:55:53   Additional Information  Earth MOID = .637191 au   Jupiter MOID = 2.17425 au   T_jup = 3.422  [ 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 13.51   n/a E2021B10   diameter diameter 4.326 km 0.567 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   rotation period rot_per 4.659 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Clark, M. (2015) Minor Planet Bull. 42, 15-20.] [Foylan, M.; Salvaggio, F. (2015) Minor Planet Bull. 42, 35-36.] [Stephens, R.D. (2015) Minor Planet Bull. 42, 70-74.] [Stephens, R. D.; Warner, B. D. (2019) MPB 46, 180-187.] [Pal, A.; Szakats, R.; Kiss, C.; Bodi, A.; et al. (2019) Ap. J. Supl. Ser. 247, id.26.] geometric albedo albedo 0.422   0.169 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2016AJ....152...63N)   SMASSII spectral type spec_B S   n/a EAR-A-5-DDR-TAXONOMY-V4.0 based on a high-resolution spectrum by Xu et al. (1995) or Bus and Binzel (2002) 4910 Kawasato (1953 PR)          Discovered 1953-Aug-11 by Reinmuth, K. at Heidelberg Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1953 PR = 1930 OJ = 1930 PA = 1934 TH = 1953 QF = 1976 SP5 = 1976 UE15  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-19 01:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin