+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   8734 Warner (1997 AA) Classification: Main-belt Asteroid          SPK-ID: 2008734 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2457000.5 (2014-Dec-09.0) TDB Reference: JPL 6 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04978009352810484 5.4549e-08   a 2.869495100482673 2.4584e-08 AU q 2.726651366002206 1.6734e-07 AU i 3.328052372166086 5.3375e-06 deg node 92.91208931725215 9.2274e-05 deg peri 292.7676961419425 0.00011023 deg M 320.3794344971362 5.9917e-05 deg tp 2457195.900120560803 (2015-Jun-22.40012056) 0.00029603 JED period 1775.442690155558 4.86 2.2816e-05 6.247e-08 d yr n .2027663308965822 2.6057e-09 deg/d Q 3.012338834963138 2.5808e-08 AU   Orbit Determination Parameters    # obs. used (total)      1274      data-arc span      12440 days (34.06 yr)      first obs. used      1980-07-12      last obs. used      2014-08-03      planetary ephem.      DE431      SB-pert. ephem.      SB431-BIG16      condition code      0      fit RMS      .50476      data source      ORB      producer      Otto Matic      solution date      2014-Aug-13 14:13:14   Additional Information  Earth MOID = 1.73241 AU   T_jup = 3.294  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 13.4 mag n/a MPO263427   8734 Warner           Discovered 1997 Jan. 1 by P. G. Comba at Prescott. Named in honor of Brian D. Warner (b. 1952). For more than eight years he has published the Minor Planet Observer, a monthly newsletter with minor-planet finder charts and other news of interest to minor planet observers. In recent years he has taken up CCD imaging and contributed hundreds of astrometric observations. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 19990402/MPCPages.arc Last Updated: 2010-06-11 Alternate Designations  1997 AA = 1990 QJ17 = 1993 HN8  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2014-Aug-15 02:27 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin