+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   48736 Ehime (1997 DL) Classification: Main-belt Asteroid          SPK-ID: 2048736 [ 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 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1601015076724643 4.4649e-08   a 2.254935791059212 9.3766e-09 au q 1.893917171206031 1.0299e-07 au i 4.970608218335868 5.0841e-06 deg node 326.6263053993744 4.279e-05 deg peri 158.3125159597425 4.472e-05 deg M 330.7940434125896 1.4393e-05 deg tp 2459100.838737279339 (2020-Sep-08.33873728) 4.9742e-05 TDB period 1236.800627038285 3.39 7.7144e-06 2.112e-08 d yr n .2910735911107006 1.8155e-09 deg/d Q 2.615954410912392 1.0878e-08 au   Orbit Determination Parameters    # obs. used (total)      881      data-arc span      8376 days (22.93 yr)      first obs. used      1997-02-27      last obs. used      2020-02-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47756      source      ORB      producer      Otto Matic      solution date      2020-Feb-23 09:12:39   Additional Information  Earth MOID = .91023 au   Jupiter MOID = 2.44316 au   T_jup = 3.602  [ 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 15.8   n/a MPO502481   diameter diameter 2.578 km 0.262 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.127   0.036 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   48736 Ehime           Discovered 1997 Feb. 27 by A. Nakamura at Kuma Kogen. Ehime prefecture, where this minor planet was discovered, is located on the island of Shikoku. It is well known for its fisheries and culture of mandarin oranges and pearls, as well as for Japan's oldest hot spring spa, "Dogo Onsen". Ehime became a sister state of Hawaii in 2003. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20040928/MPCPages.arc Last Updated: 2004-09-28 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Aug-14 20:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin