+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1231917881896843 5.1615e-08   a 3.05693849857973 3.4639e-08 au q 2.680348778553804 1.4575e-07 au i 2.753817455900757 5.3884e-06 deg node 78.66767400746228 0.00010442 deg peri 253.0538111069141 0.00010702 deg M 126.5839182474172 2.5474e-05 deg tp 2458514.056949210144 (2019-Jan-30.55694921) 0.0001339 TDB period 1952.218747102895 5.34 3.3181e-05 9.084e-08 d yr n .1844055644554394 3.1343e-09 deg/d Q 3.433528218605656 3.8906e-08 au   Orbit Determination Parameters    # obs. used (total)      267      data-arc span      7238 days (19.82 yr)      first obs. used      2001-03-26      last obs. used      2021-01-18      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .58928      source      ORB      producer      Otto Matic      solution date      2021-Apr-14 05:14:47   Additional Information  Earth MOID = 1.66948 au   Jupiter MOID = 1.90856 au   T_jup = 3.222  [ hide covariance matrix ] Orbital Elements at Epoch 2457608.5 (2016-Aug-08.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1251349220473146 5.2298e-08   q 2.675348121584952 1.4839e-07 au tp 2458506.155524282648 (2019-Jan-22.65552428) 0.00013138 TDB node 78.79401513137994 0.00010469 deg peri 251.6037408424632 0.00010716 deg i 2.751506688972966 5.3764e-06 deg   Orbit Determination Parameters    # obs. used (total)      267      data-arc span      7238 days (19.82 yr)      first obs. used      2001-03-26      last obs. used      2021-01-18      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .58928      source      ORB      producer      Otto Matic      solution date      2021-Apr-14 05:14:47   Additional Information  Jupiter MOID = 1.90856 au   T_jup = 3.222  Orbit Covariance (6×6)   e q tp node peri i e 2.735048863227702E-15 -7.632821288502414E-15 2.253099505329201E-12 -3.005576735010713E-15 2.500636071137196E-13 -4.63534445515142E-16 q -7.632821288502414E-15 2.202018073744762E-14 -5.412871692963611E-12 9.96736368207821E-15 -6.076715563845415E-13 1.390374165263065E-15 tp 2.253099505329201E-12 -5.412871692963611E-12 1.726044534111204E-8 -2.605756075180166E-11 2.997516710389868E-9 -1.044398849952694E-12 node -3.005576735010713E-15 9.96736368207821E-15 -2.605756075180166E-11 1.096085761865099E-8 -1.09528504770173E-8 -1.107333754627349E-10 peri 2.500636071137196E-13 -6.076715563845415E-13 2.997516710389868E-9 -1.09528504770173E-8 1.148388067816286E-8 1.104018885189236E-10 i -4.63534445515142E-16 1.390374165263065E-15 -1.044398849952694E-12 -1.107333754627349E-10 1.104018885189236E-10 2.890592016852874E-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-Apr-23 15:19 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin