+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08145235525246987 6.7209e-08   a 3.084370285018568 2.5063e-08 au q 2.833141060833074 2.1132e-07 au i 9.694068634580848 6.2748e-06 deg node 56.30277393399025 4.0566e-05 deg peri 271.2056878478043 5.6195e-05 deg M 235.7636326562689 4.1024e-05 deg tp 2459883.301451987664 (2022-Oct-30.80145199) 0.00022676 TDB period 1978.555297222013 5.42 2.4116e-05 6.603e-08 d yr n .1819509419349853 2.2178e-09 deg/d Q 3.335599509204062 2.7105e-08 au   Orbit Determination Parameters    # obs. used (total)      530      data-arc span      9815 days (26.87 yr)      first obs. used      1994-05-01      last obs. used      2021-03-15      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .58521      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 18:08:02   Additional Information  Earth MOID = 1.84196 au   Jupiter MOID = 1.95058 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 14.92   n/a E2021B55   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 ] 2021-Apr-19 13:59 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin