+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   3245 Jensch (1973 UL5) Classification: Main-belt Asteroid          SPK-ID: 2003245 [ 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 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1636956079384333 3.1812e-08   a 3.120655429621079 1.3614e-08 au q 2.609817841902883 9.7391e-08 au i .3295541762579167 4.0293e-06 deg node 348.2870383950543 0.00060626 deg peri 82.7044076184673 0.0006064 deg M 156.3045171771106 1.2719e-05 deg tp 2458326.248909481401 (2018-Jul-26.74890948) 6.9073e-05 TDB period 2013.571957297119 5.51 1.3177e-05 3.608e-08 d yr n .1787867568851323 1.17e-09 deg/d Q 3.631493017339274 1.5843e-08 au   Orbit Determination Parameters    # obs. used (total)      2233      data-arc span      17055 days (46.69 yr)      first obs. used      1973-10-27      last obs. used      2020-07-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50955      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 19:05:54   Additional Information  Earth MOID = 1.62386 au   Jupiter MOID = 1.65751 au   T_jup = 3.195  [ 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 13.25   n/a E2021B10   diameter diameter 12.696 km 0.919 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.052   0.011 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   3245 Jensch (1973 UL5)          Discovered 1973-Oct-27 by Borngen, F. and Kirsch, K. at Tautenburg Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1973 UL5 = 1981 EJ39  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-25 08:13 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin