+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   816 Juliana (1916 YV) Classification: Main-belt Asteroid          SPK-ID: 2000816 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO244178 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1103046 n/a   a 3.0004554 n/a AU q 2.6694914 n/a AU i 14.32903 n/a deg node 127.88756 n/a deg peri 22.11091 n/a deg M 235.59008 n/a deg tp 2457056.5420930 (2015-Feb-03.04209300) n/a JED period 1898.3627149 5.20 n/a n/a d yr n 0.18963710 n/a deg/d Q 3.3314194 n/a AU   Orbit Determination Parameters    # obs. used (total)      862      first obs. used      1926-??-??      last obs. used      2012-11-25      # oppositions      30      planetary ephem.      DE403      condition code      0      fit RMS      0.52      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.197  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 10.50 mag n/a IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 23 diameter diameter 59.85 km 1.2 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 23 rotation period rot_per 10.58 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Stephens, R.D. (2005) Minor Planet Bul. 32, 82-83.] [Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Behrend, R. (2010) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] geometric albedo albedo 0.0311   0.001 IRAS-A-FPA-3-RDR-IMPS-V6.0 IRAS observations used: 23 816 Juliana (1916 YV)          Discovered 1916-Feb-08 by Wolf, M. at Heidelberg (024) Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-20 12:22 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin