+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   19674 (1999 RN160) Classification: Main-belt Asteroid          SPK-ID: 2019674 [ 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 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1554034584135666 2.3556e-08   a 2.804291975290739 1.2498e-08 au q 2.368495303929146 6.5609e-08 au i 9.325513220287716 4.1648e-07 deg node 12.93792256508194 2.9585e-06 deg peri 41.54628212988872 3.0942e-06 deg M 134.8118190646762 5.8234e-06 deg tp 2458558.169212337879 (2019-Mar-15.66921234) 2.47e-05 TDB period 1715.273075926867 4.70 1.1467e-05 3.139e-08 d yr n .2098791178223735 1.4031e-09 deg/d Q 3.240088646652332 1.4441e-08 au   Orbit Determination Parameters    # obs. used (total)      1825      data-arc span      11111 days (30.42 yr)      first obs. used      1990-10-13      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .49184      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 03:01:54   Additional Information  Earth MOID = 1.38725 au   Jupiter MOID = 2.20433 au   T_jup = 3.287  [ 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 13.48   n/a E2021B10   diameter diameter 4.591 km 0.162 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.440   0.046 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   19674 (1999 RN160)          Discovered 1999-Sep-09 by LINEAR at Socorro Reference: 20001211/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 RN160 = 1990 TS15  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-19 17:23 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin