+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   305725 (2009 CD33) Classification: Main-belt Asteroid          SPK-ID: 2305725 [ 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 8 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1673242402858019 7.8098e-08   a 2.46014668487627 2.0067e-08 au q 2.048504509837714 1.8841e-07 au i 2.189119133648971 8.9507e-06 deg node 70.32573057837544 0.00017566 deg peri 4.335748371475505 0.00018328 deg M 38.07386108319515 4.0347e-05 deg tp 2458851.438890056164 (2020-Jan-02.93889006) 0.00015905 TDB period 1409.418379253 3.86 1.7244e-05 4.721e-08 d yr n .2554245107764254 3.1251e-09 deg/d Q 2.871788859914826 2.3424e-08 au   Orbit Determination Parameters    # obs. used (total)      125      data-arc span      6882 days (18.84 yr)      first obs. used      2001-01-30      last obs. used      2019-12-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .64485      source      ORB      producer      Otto Matic      solution date      2019-Dec-14 18:49:21   Additional Information  Earth MOID = 1.06355 au   Jupiter MOID = 2.38715 au   T_jup = 3.470  [ hide covariance matrix ] Orbital Elements at Epoch 2457409.5 (2016-Jan-22.0) TDB Reference: JPL 8 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1655382677812665 7.7778e-08   q 2.05305983218637 1.8724e-07 au tp 2457440.788331758489 (2016-Feb-22.28833176) 0.00017419 TDB node 70.34389071057907 0.00017569 deg peri 4.131918247554147 0.00018357 deg i 2.189068366992457 8.9459e-06 deg   Orbit Determination Parameters    # obs. used (total)      125      data-arc span      6882 days (18.84 yr)      first obs. used      2001-01-30      last obs. used      2019-12-04      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .64485      source      ORB      producer      Otto Matic      solution date      2019-Dec-14 18:49:21   Additional Information  Jupiter MOID = 2.38715 au   T_jup = 3.470  Orbit Covariance (6×6)   e q tp node peri i e 6.049377702437538E-15 -1.450857138696855E-14 -7.142219208764121E-12 -1.255929562355431E-13 -2.002778413366557E-12 -2.436472340379691E-15 q -1.450857138696855E-14 3.505717304898121E-14 1.560427864013778E-11 2.876898303709299E-13 4.331704343670171E-12 5.964538679090653E-15 tp -7.142219208764121E-12 1.560427864013778E-11 3.034167459756827E-8 2.940602577852098E-10 9.300159009517221E-9 5.074131918470023E-12 node -1.255929562355431E-13 2.876898303709299E-13 2.940602577852098E-10 3.086827401995258E-8 -3.075374061143697E-8 -8.579873406837752E-10 peri -2.002778413366557E-12 4.331704343670171E-12 9.300159009517221E-9 -3.075374061143697E-8 3.369774750382403E-8 8.589566709856302E-10 i -2.436472340379691E-15 5.964538679090653E-15 5.074131918470023E-12 -8.579873406837752E-10 8.589566709856302E-10 8.002948107111325E-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 17.9   n/a MPO503303   305725 (2009 CD33)          Discovered 2009-Feb-01 by Spacewatch at Kitt Peak Reference: 20111110/Numbers.arc Last Updated: 2011-11-14 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-08 07:28 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin