+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   268218 (2005 CX39) Classification: Main-belt Asteroid          SPK-ID: 2268218 [ 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 .1518545402727784 5.6305e-08   a 3.108114483658359 3.0738e-08 au q 2.636133187627255 1.8005e-07 au i 1.921473505376828 5.7648e-06 deg node 133.1078566212594 0.00016836 deg peri 244.0964639582818 0.00017006 deg M 28.38957490535176 1.9819e-05 deg tp 2458842.666085983687 (2019-Dec-25.16608598) 0.00011034 TDB period 2001.446278618332 5.48 2.969e-05 8.129e-08 d yr n .1798699289838149 2.6683e-09 deg/d Q 3.580095779689463 3.5406e-08 au   Orbit Determination Parameters    # obs. used (total)      368      data-arc span      6234 days (17.07 yr)      first obs. used      2003-10-23      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47316      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 00:22:08   Additional Information  Earth MOID = 1.6385 au   Jupiter MOID = 1.8818 au   T_jup = 3.201  [ hide covariance matrix ] Orbital Elements at Epoch 2457407.5 (2016-Jan-20.0) TDB Reference: JPL 17 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1517589500483687 5.834e-08   q 2.63783979104247 1.8645e-07 au tp 2456822.449423217652 (2014-Jun-13.94942322) 0.00011501 TDB node 133.2866104099844 0.00016792 deg peri 241.4347215171125 0.00016962 deg i 1.921871278407228 5.7856e-06 deg   Orbit Determination Parameters    # obs. used (total)      368      data-arc span      6234 days (17.07 yr)      first obs. used      2003-10-23      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47316      source      ORB      producer      Otto Matic      solution date      2020-Dec-18 00:22:08   Additional Information  Jupiter MOID = 1.8818 au   T_jup = 3.201  Orbit Covariance (6×6)   e q tp node peri i e 3.40351924895327E-15 -1.077709658286915E-14 -2.287364055743855E-12 1.878568622376372E-14 -5.757147546770404E-13 -1.74683738681527E-15 q -1.077709658286915E-14 3.476395847300137E-14 6.442987511481E-12 -6.059468449750246E-14 1.709082572198562E-12 6.004696113768168E-15 tp -2.287364055743855E-12 6.442987511481E-12 1.322805361699595E-8 -4.180583979482523E-11 2.777032204733657E-9 -4.276580146880338E-13 node 1.878568622376372E-14 -6.059468449750246E-14 -4.180583979482523E-11 2.819693844291354E-8 -2.818984062918485E-8 2.022326225038778E-10 peri -5.757147546770404E-13 1.709082572198562E-12 2.777032204733657E-9 -2.818984062918485E-8 2.877005851416535E-8 -2.021489412222553E-10 i -1.74683738681527E-15 6.004696113768168E-15 -4.276580146880338E-13 2.022326225038778E-10 -2.021489412222553E-10 3.347265033856966E-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 MPO494450   268218 (2005 CX39)          Discovered 2005-Feb-04 by Spacewatch at Kitt Peak Reference: 20110319/Numbers.arc Last Updated: 2011-03-23 [ show close-approach data ] Alternate Designations  2005 CX39 = 2003 UH291  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-24 20:11 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin