+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   134355 (1994 JL7) Classification: Main-belt Asteroid          SPK-ID: 2134355 [ 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 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08124988783189176 7.4979e-08   a 3.085108520392886 2.6221e-08 au q 2.83444379916175 2.3196e-07 au i 9.693347618216709 6.2783e-06 deg node 56.3095220782862 4.2256e-05 deg peri 271.0890060157608 5.7876e-05 deg M 199.4921026126579 4.214e-05 deg tp 2459882.966036175290 (2022-Oct-30.46603618) 0.00023398 TDB period 1979.265682214075 5.42 2.5233e-05 6.908e-08 d yr n .1818856373022602 2.3188e-09 deg/d Q 3.335773241624021 2.8351e-08 au   Orbit Determination Parameters    # obs. used (total)      519      data-arc span      9486 days (25.97 yr)      first obs. used      1994-05-01      last obs. used      2020-04-20      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58368      source      ORB      producer      Otto Matic      solution date      2020-May-20 22:18:56   Additional Information  Earth MOID = 1.84512 au   Jupiter MOID = 1.95034 au   T_jup = 3.200  [ 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 14.9   n/a MPO469409   diameter diameter 4.159 km 1.196 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.111   0.035 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   134355 (1994 JL7)          Discovered 1994-May-05 by Spacewatch at Kitt Peak Reference: 20060907/Numbers.arc Last Updated: 2006-09-10 [ show close-approach data ] Alternate Designations  1994 JL7 = 2001 TZ5  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-25 09:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin