+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14028 Nakamurahiroshi (1994 TZ14) Classification: Main-belt Asteroid          SPK-ID: 2014028 [ 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 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2073171462799063 2.9001e-08   a 2.551669117199411 7.9199e-09 au q 2.022664357571062 7.322e-08 au i 5.063555764763449 4.0083e-06 deg node 182.6442570173419 4.5097e-05 deg peri 202.1105811765901 4.6776e-05 deg M 151.8564529105905 1.3437e-05 deg tp 2458572.491222874794 (2019-Mar-29.99122287) 5.4172e-05 TDB period 1488.795210422745 4.08 6.9314e-06 1.898e-08 d yr n .2418062588324539 1.1258e-09 deg/d Q 3.080673876827761 9.5618e-09 au   Orbit Determination Parameters    # obs. used (total)      1971      data-arc span      9666 days (26.46 yr)      first obs. used      1994-10-05      last obs. used      2021-03-23      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .51328      source      ORB      producer      Otto Matic      solution date      2021-May-04 01:39:55   Additional Information  Earth MOID = 1.02604 au   Jupiter MOID = 2.37535 au   T_jup = 3.404  [ 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 14.29   n/a MPCxxxxx   diameter diameter 4.197 km 0.188 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.230   0.032 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   14028 Nakamurahiroshi           Discovered 1994 Oct. 5 by K. Endate and K. Watanabe at Kitami. Hiroshi Nakamura (b. 1955) is a well-known amateur astronomer in Kagawa Prefecture, Japan. He built an astronomical observatory in his garden in 1984. His main interests are observing comets and solar eclipses. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2015-01-05 Last Updated: 2015-01-07 Alternate Designations  1994 TZ14 = 1997 KF3  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jun-22 08:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin