+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   295507 (2008 RO64) Classification: Main-belt Asteroid          SPK-ID: 2295507 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1231662564548747 5.175e-08   a 3.056352049122539 3.6449e-08 au q 2.67991260882393 1.4738e-07 au i 2.754076755914805 5.8225e-06 deg node 78.66923413970129 0.00011826 deg peri 252.9535909284391 0.00012109 deg M 89.81011165600557 2.659e-05 deg tp 2458513.615186507621 (2019-Jan-30.11518651) 0.00014229 TDB period 1951.656997472797 5.34 3.4912e-05 9.558e-08 d yr n .1844586423055714 3.2997e-09 deg/d Q 3.432791489421148 4.0938e-08 au   Orbit Determination Parameters    # obs. used (total)      236      data-arc span      7151 days (19.58 yr)      first obs. used      2001-03-26      last obs. used      2020-10-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5929      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 19:49:08   Additional Information  Earth MOID = 1.67094 au   Jupiter MOID = 1.90901 au   T_jup = 3.222  [ hide covariance matrix ] Orbital Elements at Epoch 2457386.5 (2015-Dec-30.0) TDB Reference: JPL 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .126286833467215 5.253e-08   q 2.669056143798258 1.5015e-07 au tp 2456553.403826802163 (2013-Sep-17.90382680) 0.00013389 TDB node 78.84192748017526 0.00011849 deg peri 251.4064379961296 0.00012111 deg i 2.75237241102146 5.8103e-06 deg   Orbit Determination Parameters    # obs. used (total)      236      data-arc span      7151 days (19.58 yr)      first obs. used      2001-03-26      last obs. used      2020-10-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5929      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 19:49:08   Additional Information  Jupiter MOID = 1.90901 au   T_jup = 3.222  Orbit Covariance (6×6)   e q tp node peri i e 2.759407219120949E-15 -7.743370674367159E-15 1.660974239504031E-12 2.555589270826544E-15 2.84402134447417E-13 -8.017326000933784E-16 q -7.743370674367159E-15 2.254433801175875E-14 -5.188327200385013E-12 -8.509346334327521E-15 -8.260632877741596E-13 2.838517224921847E-15 tp 1.660974239504031E-12 -5.188327200385013E-12 1.792566123705889E-8 -4.070077577666122E-11 3.38611667646179E-9 -7.982388665705682E-13 node 2.555589270826544E-15 -8.509346334327521E-15 -4.070077577666122E-11 1.403958440613946E-8 -1.403069097574004E-8 -2.318846355867923E-10 peri 2.84402134447417E-13 -8.260632877741596E-13 3.38611667646179E-9 -1.403069097574004E-8 1.466734303068569E-8 2.31478354092269E-10 i -8.017326000933784E-16 2.838517224921847E-15 -7.982388665705682E-13 -2.318846355867923E-10 2.31478354092269E-10 3.375988700971771E-11 [ 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 16.0   n/a MPO455184   295507 (2008 RO64)          Discovered 2008-Sep-04 by Spacewatch at Kitt Peak Reference: 20110912/Numbers.arc Last Updated: 2011-09-14 [ show close-approach data ] Alternate Designations  2008 RO64 = 2006 DB173  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-19 00:16 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin