+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   102001 (1999 RG79) Classification: Main-belt Asteroid          SPK-ID: 2102001 [ 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 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .01527346039918128 5.0915e-08   a 3.129047810764071 2.8602e-08 au q 3.081256422939221 1.6904e-07 au i 10.50192520599514 7.9843e-06 deg node 358.5220909959555 2.858e-05 deg peri 262.4138380012724 0.00026699 deg M 28.43255642693295 0.00026559 deg tp 2459040.827496579834 (2020-Jul-10.32749658) 0.0014919 TDB period 2021.700066927837 5.54 2.772e-05 7.589e-08 d yr n .1780679567108359 2.4416e-09 deg/d Q 3.176839198588921 2.9039e-08 au   Orbit Determination Parameters    # obs. used (total)      526      data-arc span      8505 days (23.29 yr)      first obs. used      1997-03-05      last obs. used      2020-06-17      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .62096      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 19:57:15   Additional Information  Earth MOID = 2.08904 au   Jupiter MOID = 1.82374 au   T_jup = 3.188  [ 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 14.57   n/a E2021B55   diameter diameter 4.817 km 0.992 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.121   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   102001 (1999 RG79)          Discovered 1999-Sep-07 by LINEAR at Socorro Reference: 20051019/Numbers.arc Last Updated: 2005-10-26 [ show close-approach data ] Alternate Designations  1999 RG79 = 1997 EN22  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-07 08:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin