+ 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 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1231662558720548 5.1802e-08   a 3.056352050696871 3.6775e-08 au q 2.679912611985661 1.4781e-07 au i 2.754077090352753 5.8739e-06 deg node 78.66922467391659 0.0001207 deg peri 252.9535988932963 0.00012356 deg M 89.81011274089653 2.683e-05 deg tp 2458513.615180249942 (2019-Jan-30.11518025) 0.00014377 TDB period 1951.65699898075 5.34 3.5225e-05 9.644e-08 d yr n .1844586421630489 3.3292e-09 deg/d Q 3.432791489408081 4.1305e-08 au   Orbit Determination Parameters    # obs. used (total)      233      data-arc span      6880 days (18.84 yr)      first obs. used      2001-03-26      last obs. used      2020-01-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59264      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 16:40:30   Additional Information  Earth MOID = 1.67094 au   Jupiter MOID = 1.90901 au   T_jup = 3.222  [ hide covariance matrix ] Orbital Elements at Epoch 2457332.5 (2015-Nov-06.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1264803167451172 5.259e-08   q 2.667958293750808 1.5059e-07 au tp 2456553.427179603749 (2013-Sep-17.92717960) 0.00013577 TDB node 78.84703074026869 0.00012092 deg peri 251.3619417556349 0.00012356 deg i 2.752602367297134 5.8621e-06 deg   Orbit Determination Parameters    # obs. used (total)      233      data-arc span      6880 days (18.84 yr)      first obs. used      2001-03-26      last obs. used      2020-01-26      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59264      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 16:40:30   Additional Information  Jupiter MOID = 1.90901 au   T_jup = 3.222  Orbit Covariance (6×6)   e q tp node peri i e 2.76575461621295E-15 -7.772460465824715E-15 1.71234074939872E-12 2.28729624096028E-15 2.945804739088654E-13 -8.057252945080197E-16 q -7.772460465824715E-15 2.2677671857612E-14 -5.458339802477925E-12 -8.517038979816662E-15 -8.786085537000526E-13 2.924731174520212E-15 tp 1.71234074939872E-12 -5.458339802477925E-12 1.843462099253187E-8 -4.255727340938454E-11 3.486713124967914E-9 -7.870144779143533E-13 node 2.28729624096028E-15 -8.517038979816662E-15 -4.255727340938454E-11 1.462098146875801E-8 -1.461182812426939E-8 -2.504924950648708E-10 peri 2.945804739088654E-13 -8.786085537000526E-13 3.486713124967914E-9 -1.461182812426939E-8 1.526733379182179E-8 2.50071250178803E-10 i -8.057252945080197E-16 2.924731174520212E-15 -7.870144779143533E-13 -2.504924950648708E-10 2.50071250178803E-10 3.436476013481448E-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 ] 2020-Sep-29 21:44 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin