+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   312304 (2008 CB51) Classification: Main-belt Asteroid          SPK-ID: 2312304 [ 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 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1521605299922078 8.7592e-08   a 2.645017205899745 3.2401e-08 au q 2.242549986011531 2.522e-07 au i 7.064428982018027 4.552e-06 deg node 92.32505990701954 5.8088e-05 deg peri 279.3619727870914 6.3781e-05 deg M 37.49650944202677 2.0429e-05 deg tp 2458836.844909215415 (2019-Dec-19.34490922) 8.9271e-05 TDB period 1571.235124526466 4.30 2.8871e-05 7.904e-08 d yr n .2291191142436405 4.21e-09 deg/d Q 3.047484425787958 3.7331e-08 au   Orbit Determination Parameters    # obs. used (total)      167      data-arc span      7702 days (21.09 yr)      first obs. used      1998-12-22      last obs. used      2020-01-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60342      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 18:45:14   Additional Information  Earth MOID = 1.25603 au   Jupiter MOID = 2.44878 au   T_jup = 3.366  [ hide covariance matrix ] Orbital Elements at Epoch 2457679.5 (2016-Oct-18.0) TDB Reference: JPL 13 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1539354015608004 8.8027e-08   q 2.236972667183112 2.5357e-07 au tp 2457261.701223817553 (2015-Aug-27.20122382) 9.2487e-05 TDB node 92.43604833796195 5.8248e-05 deg peri 278.5010817329254 6.3684e-05 deg i 7.057145104488822 4.5463e-06 deg   Orbit Determination Parameters    # obs. used (total)      167      data-arc span      7702 days (21.09 yr)      first obs. used      1998-12-22      last obs. used      2020-01-23      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60342      source      ORB      producer      Otto Matic      solution date      2020-Feb-25 18:45:14   Additional Information  Jupiter MOID = 2.44878 au   T_jup = 3.366  Orbit Covariance (6×6)   e q tp node peri i e 7.748833903948416E-15 -2.225850753089041E-14 1.569417798673164E-12 -3.490894655529359E-14 3.478055050563269E-13 -3.548578666629784E-14 q -2.225850753089041E-14 6.429679128029315E-14 -5.043572167329448E-12 1.059938277668812E-13 -1.129174640463273E-12 1.033881689878096E-13 tp 1.569417798673164E-12 -5.043572167329448E-12 8.553778648910356E-9 -6.412080438095817E-11 2.440863459362795E-9 -6.93867578097334E-12 node -3.490894655529359E-14 1.059938277668812E-13 -6.412080438095817E-11 3.392864815510656E-9 -3.384117557235E-9 -2.332930669840706E-11 peri 3.478055050563269E-13 -1.129174640463273E-12 2.440863459362795E-9 -3.384117557235E-9 4.055600131379324E-9 2.18536431739996E-11 i -3.548578666629784E-14 1.033881689878096E-13 -6.93867578097334E-12 -2.332930669840706E-11 2.18536431739996E-11 2.066928660813169E-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 17.1   n/a MPO446476   312304 (2008 CB51)          Discovered 2008-Feb-07 by Spacewatch at Kitt Peak Reference: 20120109/Numbers.arc Last Updated: 2012-01-11 [ show close-approach data ] Alternate Designations  2008 CB51 = 1998 YY14  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-28 00:41 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin