+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100010 (1988 RN12) Classification: Main-belt Asteroid          SPK-ID: 2100010 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2660522567664972 5.7252e-08   a 2.756472176691591 1.5751e-08 au q 2.023106533368734 1.6001e-07 au i 16.91488026463534 7.1931e-06 deg node 358.4362560977586 1.2908e-05 deg peri 309.2430691591696 1.8137e-05 deg M 40.35708285608592 9.97e-06 deg tp 2459013.110128978084 (2020-Jun-12.61012898) 4.6783e-05 TDB period 1671.586467447477 4.58 1.4328e-05 3.923e-08 d yr n .2153642704165476 1.8459e-09 deg/d Q 3.489837820014447 1.9942e-08 au   Orbit Determination Parameters    # obs. used (total)      1062      data-arc span      11809 days (32.33 yr)      first obs. used      1988-09-14      last obs. used      2021-01-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .45852      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 08:24:04   Additional Information  Earth MOID = 1.05097 au   Jupiter MOID = 2.02657 au   T_jup = 3.230  [ 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 14.77   n/a E2021B55   diameter diameter 8.094 km 0.105 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.051   0.004 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   100010 (1988 RN12)          Discovered 1988-Sep-14 by Bus, S. J. at Cerro Tololo Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1988 RN12 = 2002 TA279  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-28 16:53 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin