+ 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 | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1347824835226429 3.1392e-08   a 2.428434265428096 8.5878e-09 au q 2.101123864062212 7.5564e-08 au i 5.104342609509207 3.4876e-06 deg node 210.212964295896 3.9579e-05 deg peri 6.892598558792962 4.2499e-05 deg M 222.4637256274337 1.7882e-05 deg tp 2459728.583636286566 (2022-May-29.08363629) 7.0087e-05 TDB period 1382.254317491416 3.78 7.3322e-06 2.007e-08 d yr n .2604441132463569 1.3815e-09 deg/d Q 2.755744666793979 9.7452e-09 au   Orbit Determination Parameters    # obs. used (total)      1637      data-arc span      9962 days (27.27 yr)      first obs. used      1993-10-10      last obs. used      2021-01-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54066      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 02:36:49   Additional Information  Earth MOID = 1.09301 au   Jupiter MOID = 2.21256 au   T_jup = 3.491  [ 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 14.7   n/a MPO395177   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 [ show close-approach data ] Alternate Designations  2000 LN34 = 1993 TH45 = 1999 CJ73  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-11 08:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin