+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   22407 (1995 SK2) Classification: Main-belt Asteroid          SPK-ID: 2022407 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 1 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1942636012471564 7.5994e-08   a 2.432004757499239 2.0239e-08 AU q 1.95955475505722 1.9128e-07 AU i 3.113660559019567 8.2452e-06 deg node 349.4434602900478 0.00012052 deg peri 355.5447441566643 0.00012205 deg M 228.6683659811352 2.7558e-05 deg tp 2456905.872846954898 (2014-Sep-05.37284695) 0.00011079 JED period 1385.303900792326 3.79 1.7293e-05 4.735e-08 d yr n .2598707762203642 3.2439e-09 deg/d Q 2.904454759941259 2.4171e-08 AU   Orbit Determination Parameters    # obs. used (total)      501      data-arc span      6424 days (17.59 yr)      first obs. used      1995-09-17      last obs. used      2013-04-19      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .60806      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 14:32:33   Additional Information  Earth MOID = .951806 AU   T_jup = 3.479  [ 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 15.3 mag n/a PDS3 (MPO 9987)   22407 (1995 SK2)          Discovered 1995-Sep-17 by Shimizu, Y., Urata, T. at Nachi-Katsuura (905) Reference: 20010309/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1995 SK2 = 1998 HR78  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-May-23 07:18 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin