+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   10115 (1992 SK) Classification: Apollo [NEO, PHA]          SPK-ID: 2010115 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 107 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .3248781551835309 2.1299e-08   a 1.24843563265022 1.3555e-09 AU q .8428461674494319 2.6234e-08 AU i 15.32255458295658 7.3867e-06 deg node 8.949650367321279 1.2112e-05 deg peri 233.6134374826216 1.4371e-05 deg M 356.8995216816948 8.3364e-06 deg tp 2456404.888073146316 (2013-Apr-22.38807315) 1.1804e-05 JED period 509.5040734029242 1.39 8.2983e-07 2.272e-09 d yr n .7065694246477713 1.1508e-09 deg/d Q 1.654025097851007 1.7959e-09 AU   Orbit Determination Parameters    # obs. used (total)      620      # delay obs. used      10      # Doppler obs. used      7      data-arc span      21689 days (59.38 yr)      first obs. used      1953-10-12      last obs. used      2013-02-28      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .5146      data source      ORB      producer      Otto Matic      solution date      2013-Apr-29 15:37:54   Additional Information  Earth MOID = .0461468 AU   T_jup = 5.061  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 17.0 mag n/a PDS3 (MPC 33885)   rotation period rot_per 7.319 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Pravec, P.; Wolf, M.; Sarounova, L. (1999) http://www.asu.cas.cz/~ppravec/neo.htm] [Pravec, P.; Wolf, M.; Sarounova, L. (1999) http://www.asu.cas.cz/~ppravec/neo.htm] [Pravec, P.; Wolf, M.; Sarounova, L. (1999) http://www.asu.cas.cz/~ppravec/neo.htm] [Busch, M.W.; Ostro, S.J.; Benner, L.A.M.; Giorgini, J.D.; et al. (2007) Icarus 181, 145-155.] [Polishook, D. (2012) Minor Planet Bul. 39, 187-192.] SMASSII spectral type spec_B S:   n/a Binzel et al. (2004) Icarus 170, 259-294 SMASSIR data only, classification consistent with specified type, but uncertain 10115 (1992 SK)          Discovered 1992-Sep-24 by Helin, E. F., Alu, J. at Palomar (675) Reference: 19990302/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1992 SK = 1985 SD = 1985 TO2  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-May-18 22:51 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin