+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   10168 Stony Ridge (1995 CN) Classification: Main-belt Asteroid          SPK-ID: 2010168 [ 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 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08404848439488841 4.1309e-08   a 2.762305203047069 1.6228e-08 au q 2.530137637294848 1.1475e-07 au i 7.409142838186597 4.6038e-06 deg node 118.7078549088894 3.5865e-05 deg peri 287.1739562028162 4.6402e-05 deg M 295.2937035312119 3.0985e-05 deg tp 2459501.904659232514 (2021-Oct-14.40465923) 0.00014545 TDB period 1676.895190192878 4.59 1.4777e-05 4.046e-08 d yr n .2146824691879476 1.8918e-09 deg/d Q 2.994472768799289 1.7592e-08 au   Orbit Determination Parameters    # obs. used (total)      828      data-arc span      13060 days (35.76 yr)      first obs. used      1984-11-15      last obs. used      2020-08-18      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .56701      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 21:54:27   Additional Information  Earth MOID = 1.55128 au   Jupiter MOID = 2.31079 au   T_jup = 3.324  [ 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 14.99   n/a E2021B10   10168 Stony Ridge           Discovered 1995 Feb. 4 by J. B. Child and J. E. Rogers at Stony Ridge Observatory. Named in honor and memory of the gifted and talented amateur astronomers who founded Stony Ridge Observatory, near Mount Wilson, in 1957. They are Anthony L. Bland, Norman L. Boltz, Charles Buzzetti, George A. Carroll, Roy R. Cook, Alvin E. Cram, Roy K. Ensign, W. H. Griffith, Harold J. Ireland, J. George Moyen, Norris A. Roberts, Easy Sloman, John Sousa, John Terlep and Dave Thomas. Starting in 1964, the observatory was used by the Aeronautical Chart and Information Center in St. Louis to map potential landing sites for the Apollo space program. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 19990728/MPCPages.arc Last Updated: 2010-06-11 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jun-15 16:10 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin