+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   392943 (2012 WV7) Classification: Main-belt Asteroid          SPK-ID: 2392943 [ 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 .2098087357978116 6.2714e-08   a 2.537945147796725 2.8489e-08 au q 2.005462084813304 1.6306e-07 au i 14.7074846827707 6.8525e-06 deg node 46.02311398037678 1.7146e-05 deg peri 136.003431840435 2.2109e-05 deg M 216.1567032895933 1.5797e-05 deg tp 2459590.577291208113 (2022-Jan-11.07729121) 6.7764e-05 TDB period 1476.800307647232 4.04 2.4866e-05 6.808e-08 d yr n .2437702634105859 4.1045e-09 deg/d Q 3.070428210780145 3.4466e-08 au   Orbit Determination Parameters    # obs. used (total)      268      data-arc span      4381 days (11.99 yr)      first obs. used      2008-10-29      last obs. used      2020-10-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47498      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 16:21:18   Additional Information  Earth MOID = 1.03043 au   Jupiter MOID = 1.95141 au   T_jup = 3.371  [ hide covariance matrix ] Orbital Elements at Epoch 2457755.5 (2017-Jan-02.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2095174093437178 6.3005e-08   q 2.006627602491987 1.6386e-07 au tp 2458114.521088225148 (2017-Dec-27.02108823) 6.2936e-05 TDB node 46.02930392723564 1.714e-05 deg peri 136.1903652854167 2.2061e-05 deg i 14.70939366884694 6.8531e-06 deg   Orbit Determination Parameters    # obs. used (total)      268      data-arc span      4381 days (11.99 yr)      first obs. used      2008-10-29      last obs. used      2020-10-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .47498      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 16:21:18   Additional Information  Jupiter MOID = 1.95141 au   T_jup = 3.371  Orbit Covariance (6×6)   e q tp node peri i e 3.969578036038246E-15 -1.022596373400495E-14 2.475712066598203E-12 4.77789760276268E-14 4.480744448822495E-13 3.12693664534541E-15 q -1.022596373400495E-14 2.684848285237981E-14 -6.293824326202075E-12 -1.234417810357554E-13 -1.166073782162391E-12 -6.035538907765814E-15 tp 2.475712066598203E-12 -6.293824326202075E-12 3.960937638660625E-9 4.062608905034381E-11 8.763944134618878E-10 -3.442491519734139E-12 node 4.77789760276268E-14 -1.234417810357554E-13 4.062608905034381E-11 2.937704743574436E-10 -2.74602552031705E-10 -2.245966018467484E-12 peri 4.480744448822495E-13 -1.166073782162391E-12 8.763944134618878E-10 -2.74602552031705E-10 4.866928575572241E-10 1.110908795354394E-12 i 3.12693664534541E-15 -6.035538907765814E-15 -3.442491519734139E-12 -2.245966018467484E-12 1.110908795354394E-12 4.696511253602834E-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 16.2   n/a MPO450379   diameter diameter 3.834 km 0.107 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   392943 (2012 WV7)          Discovered 2008-Oct-29 by Spacewatch at Kitt Peak Reference: Last Updated: 2014-04-17 [ show close-approach data ] Alternate Designations  2012 WV7 = 2008 XL56 = 2010 DQ57  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Nov-24 16:30 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin