+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70365 (1999 RF198) Classification: Main-belt Asteroid          SPK-ID: 2070365 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1928674952254516 3.3573e-08   a 2.344999795647059 9.2037e-09 au q 1.892725558756415 8.1838e-08 au i 7.044837696242619 3.4688e-06 deg node 260.39536365319 3.5384e-05 deg peri 39.13394149133993 3.7022e-05 deg M 1.211296481692935 1.1386e-05 deg tp 2459196.086729007445 (2020-Dec-12.58672901) 4.1481e-05 TDB period 1311.633923925164 3.59 7.7219e-06 2.114e-08 d yr n .2744668260200778 1.6158e-09 deg/d Q 2.797274032537704 1.0979e-08 au   Orbit Determination Parameters    # obs. used (total)      864      data-arc span      7667 days (20.99 yr)      first obs. used      1999-07-12      last obs. used      2020-07-08      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50234      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 22:01:00   Additional Information  Earth MOID = .880989 au   Jupiter MOID = 2.42001 au   T_jup = 3.526  [ 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 15.66   n/a E2021B10   diameter diameter 1.886 km 0.171 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.313   0.052 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   70365 (1999 RF198)          Discovered 1999-Sep-09 by LINEAR at Socorro Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 RF198 = 2002 JD46  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-08 13:44 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin