+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   18105 (2000 NT3) Classification: Main-belt Asteroid          SPK-ID: 2018105 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 29 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .308278052070177 2.2416e-08   a 3.063479094658313 1.3493e-08 au q 2.119075726799339 7.43e-08 au i 1.284103998460745 1.0786e-06 deg node 22.14181488096057 2.7693e-05 deg peri 4.070280326197611 2.7572e-05 deg M 243.7022801469146 5.3141e-06 deg tp 2459833.187869212025 (2022-Sep-10.68786921) 3.2319e-05 TDB period 1958.487519824631 5.36 1.2939e-05 3.543e-08 d yr n .1838153148059047 1.2144e-09 deg/d Q 4.007882462517288 1.7653e-08 au   Orbit Determination Parameters    # obs. used (total)      1982      data-arc span      13055 days (35.74 yr)      first obs. used      1984-09-25      last obs. used      2020-06-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52061      source      ORB      producer      Otto Matic      solution date      2021-Mar-17 01:50:11   Additional Information  Earth MOID = 1.12223 au   Jupiter MOID = 1.4515 au   T_jup = 3.158  [ 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 13.16   n/a E2021B10   diameter diameter 11.822 km 0.465 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.096   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   18105 (2000 NT3)          Discovered 2000-Jul-07 by LINEAR at Socorro Reference: 20001013/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  2000 NT3 = 1984 SK2 = 1990 XT = 1995 UR49 = 1998 HL32 = 1999 JS116  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-11 17:15 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin