+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3250482100902336 4.012e-08   a 2.441024454398487 8.2192e-09 au q 1.64757382470977 9.5256e-08 au i 4.997795819411986 3.8146e-06 deg node 180.0104213969882 3.5873e-05 deg peri 155.0425613269065 3.6168e-05 deg M 187.3958443611078 5.9833e-06 deg tp 2459668.390658311691 (2022-Mar-29.89065831) 2.5353e-05 TDB period 1393.017659987505 3.81 7.0357e-06 1.926e-08 d yr n .2584317559931216 1.3052e-09 deg/d Q 3.234475084087205 1.0891e-08 au   Orbit Determination Parameters    # obs. used (total)      2383      data-arc span      24367 days (66.71 yr)      first obs. used      1953-08-11      last obs. used      2020-04-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .44935      source      ORB      producer      Otto Matic      solution date      2020-May-20 02:14:04   Additional Information  Earth MOID = .639768 au   Jupiter MOID = 2.17363 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 13.5   n/a MPO492809   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. 2019-August); 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.] 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 ] 2020-Jul-07 03:51 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin