+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2663373737396557 5.9057e-08   a 2.757597648170523 1.8164e-08 au q 2.023146332726135 1.6621e-07 au i 16.91216474281327 7.7572e-06 deg node 358.4413873151693 1.9077e-05 deg peri 309.2661079579302 2.3471e-05 deg M 357.2682033001099 1.2969e-05 deg tp 2459013.192309453391 (2020-Jun-12.69230945) 6.0265e-05 TDB period 1672.610338611436 4.58 1.6526e-05 4.525e-08 d yr n .2152324374001323 2.1265e-09 deg/d Q 3.492048963614911 2.3001e-08 au   Orbit Determination Parameters    # obs. used (total)      712      data-arc span      11646 days (31.89 yr)      first obs. used      1988-09-14      last obs. used      2020-08-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51267      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 09:01:27   Additional Information  Earth MOID = 1.05282 au   Jupiter MOID = 2.0243 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 14.6   n/a MPO395884   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 ] 2020-Oct-19 22:21 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin