+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   58600 Iwamuroonsen (1997 TC17) Classification: Main-belt Asteroid          SPK-ID: 2058600 [ 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 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .181720281647836 2.9704e-08   a 2.228370343616371 6.286e-09 au q 1.823430257158719 6.7933e-08 au i 1.82144209746716 3.1119e-06 deg node 188.3506674161903 9.7126e-05 deg peri 149.3022187849054 9.7608e-05 deg M 319.7053450993265 8.3202e-06 deg tp 2459136.495463567705 (2020-Oct-13.99546357) 2.7968e-05 TDB period 1215.0089634731 3.33 5.1411e-06 1.408e-08 d yr n .2962941104326843 1.2537e-09 deg/d Q 2.633310430074023 7.4282e-09 au   Orbit Determination Parameters    # obs. used (total)      1515      data-arc span      8434 days (23.09 yr)      first obs. used      1997-10-05      last obs. used      2020-11-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47027      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 03:57:10   Additional Information  Earth MOID = .814519 au   Jupiter MOID = 2.74433 au   T_jup = 3.621  [ 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 15.6   n/a MPO385193   diameter diameter 2.108 km 0.167 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.302   0.086 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   58600 Iwamuroonsen           Discovered 1997 Oct 5 by T. Okuni at Nanyo. Iwamuroonsen is a town of 10~000 people to the southwest of Niigata City. It is famous for its hot springs. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20090409/MPCPages.arc Last Updated: 2009-04-10 [ show close-approach data ] Alternate Designations  1997 TC17 = 2000 OY10  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-20 11:12 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin