+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   101089 (1998 RR32) Classification: Main-belt Asteroid          SPK-ID: 2101089 [ 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 15 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1488948288573521 5.4158e-08   a 2.565507061459012 2.0194e-08 au q 2.183516326610744 1.3398e-07 au i 3.252336344378044 5.7272e-06 deg node 340.2880293704976 9.481e-05 deg peri 292.1922103866641 9.9862e-05 deg M 162.5545042434596 4.1526e-05 deg tp 2458322.773050380013 (2018-Jul-23.27305038) 0.00016676 TDB period 1500.922432132556 4.11 1.7721e-05 4.852e-08 d yr n .2398525015636558 2.832e-09 deg/d Q 2.94749779630728 2.3201e-08 au   Orbit Determination Parameters    # obs. used (total)      572      data-arc span      9534 days (26.10 yr)      first obs. used      1994-09-12      last obs. used      2020-10-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59172      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 20:02:29   Additional Information  Earth MOID = 1.16984 au   Jupiter MOID = 2.16703 au   T_jup = 3.415  [ 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 15.7   n/a MPO264058   diameter diameter 1.796 km 0.188 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.315   0.138 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   101089 (1998 RR32)          Discovered 1998-Sep-14 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1998 RR32 = 2001 FZ172  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Nov-28 12:31 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin