+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   18102 Angrilli (2000 LN34) Classification: Main-belt Asteroid          SPK-ID: 2018102 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1346488004349164 3.1052e-08   a 2.428776759883195 8.5644e-09 au q 2.101744882640719 7.4841e-08 au i 5.103957612628332 3.4414e-06 deg node 210.2050894227101 3.9226e-05 deg peri 6.855976143739846 4.2165e-05 deg M 273.5422520078615 1.8016e-05 deg tp 2459728.532995194458 (2022-May-29.03299519) 7.0106e-05 TDB period 1382.546747353099 3.79 7.3127e-06 2.002e-08 d yr n .2603890253181124 1.3773e-09 deg/d Q 2.75580863712567 9.7175e-09 au   Orbit Determination Parameters    # obs. used (total)      1660      data-arc span      10038 days (27.48 yr)      first obs. used      1993-10-10      last obs. used      2021-04-04      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .54277      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 17:58:15   Additional Information  Earth MOID = 1.09528 au   Jupiter MOID = 2.21135 au   T_jup = 3.491  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.71   n/a MPCxxxxx   diameter diameter 2.919 km 0.693 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.273   0.120 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   18102 Angrilli           Discovered 2000 June 3 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station. Francesco Angrilli (b. 1937), of the University of Padua, is a pioneer in research on tethered satellites. He is project manager and co-investigator of the Huygens Atmospheric Structure Instrument. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20050721/MPCPages.arc Last Updated: 2005-07-21 Alternate Designations  2000 LN34 = 1993 TH45 = 1999 CJ73  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Aug-03 15:29 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin