+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   2603 Taylor (1982 BW1) Classification: Main-belt Asteroid          SPK-ID: 2002603 [ 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 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04426107860127403 2.9463e-08   a 2.779728743227067 1.0668e-08 au q 2.656694950832873 8.5062e-08 au i 3.050283377565798 4.3419e-06 deg node 37.7659788106017 6.0652e-05 deg peri 281.6551015686798 7.8644e-05 deg M 280.4573752639268 5.0294e-05 deg tp 2459374.524000051023 (2021-Jun-09.02400005) 0.00023653 TDB period 1692.785980663072 4.63 9.7445e-06 2.668e-08 d yr n .2126671676823472 1.2242e-09 deg/d Q 2.90276253562126 1.114e-08 au   Orbit Determination Parameters    # obs. used (total)      2786      data-arc span      30812 days (84.36 yr)      first obs. used      1936-03-23      last obs. used      2020-08-01      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .45475      source      ORB      producer      Otto Matic      solution date      2020-Aug-24 22:54:19   Additional Information  Earth MOID = 1.64568 au   Jupiter MOID = 2.2263 au   T_jup = 3.330  [ 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 12.5   n/a MPO473800   diameter diameter 18.069 km 0.137 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 3.905 h n/a LCDB (Rev. 2019-August); Warner et al., 2009 Result based on less than full coverage, so that the period may be wrong by 30 percent or so. Published Reference List: [Odden, C.E.; Cohen, A.J.; Davis, S.; Eldracher, E.A.; et al. (2018) Minor Planet Bull. 45, 278-279.] geometric albedo albedo 0.065   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   2603 Taylor (1982 BW1)          Discovered 1982-Jan-30 by Bowell, E. at Flagstaff (AM) Discovered at the Anderson Mesa station, which is operated by the Lowell Observatory. Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1982 BW1 = 1927 HC = 1936 FS = 1952 UX = 1970 QU = 1978 GD2 = 1978 JT2 = 1980 XS  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Sep-23 20:12 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin