+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   118081 (5206 T-2) Classification: Outer Main-belt Asteroid          SPK-ID: 2118081 [ 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 .116068402899381 6.8744e-08   a 3.237183956694863 2.8036e-08 au q 2.861449184949791 2.2646e-07 au i 16.20775328915206 7.7104e-06 deg node 345.6875219082096 1.6351e-05 deg peri 2.728652907429824 2.6742e-05 deg M 31.95646891548201 2.0579e-05 deg tp 2458811.654874006472 (2019-Nov-24.15487401) 0.00012187 TDB period 2127.401670612418 5.82 2.7637e-05 7.567e-08 d yr n .1692205120325802 2.1983e-09 deg/d Q 3.612918728439935 3.129e-08 au   Orbit Determination Parameters    # obs. used (total)      572      data-arc span      17110 days (46.84 yr)      first obs. used      1973-09-25      last obs. used      2020-07-30      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .52992      source      ORB      producer      Otto Matic      solution date      2020-Aug-25 10:01:46   Additional Information  Earth MOID = 1.8549 au   Jupiter MOID = 1.80971 au   T_jup = 3.112  [ 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 14.3   n/a MPO375848   diameter diameter 7.031 km 0.351 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.108   0.020 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   118081 (5206 T-2)          Discovered 1973-Sep-25 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  5206 T-2 = 2002 RN66  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-30 18:25 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin