+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   70077 (1999 JJ59) Classification: Main-belt Asteroid          SPK-ID: 2070077 [ 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 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1539051250131141 2.8066e-08   a 2.305762526769598 6.2233e-09 au q 1.950893856836569 6.5366e-08 au i 5.153134205281815 3.67e-06 deg node 174.2762470306269 3.963e-05 deg peri 111.0634967794571 4.2177e-05 deg M 328.7062127350241 1.305e-05 deg tp 2459111.667008032010 (2020-Sep-19.16700803) 4.6342e-05 TDB period 1278.85201470371 3.50 5.1775e-06 1.418e-08 d yr n .2815024692934519 1.1397e-09 deg/d Q 2.660631196702627 7.1811e-09 au   Orbit Determination Parameters    # obs. used (total)      960      data-arc span      8673 days (23.75 yr)      first obs. used      1996-09-17      last obs. used      2020-06-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55399      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 23:33:41   Additional Information  Earth MOID = .941855 au   Jupiter MOID = 2.4966 au   T_jup = 3.567  [ 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 16.0   n/a MPO267920   diameter diameter 1.512 km 0.195 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.256   0.055 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   70077 (1999 JJ59)          Discovered 1999-May-10 by LINEAR at Socorro Reference: 20031109/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1999 JJ59 = 2002 EE18  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Sep-24 19:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin