+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   305213 (2007 WV47) Classification: Main-belt Asteroid          SPK-ID: 2305213 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0683354105302348 5.1585e-08   a 2.627140427850192 2.5541e-08 au q 2.447613708192472 1.4327e-07 au i 8.379738783516153 6.1453e-06 deg node 23.99067038892298 3.3198e-05 deg peri 305.058109423168 5.8385e-05 deg M 60.10524523737219 4.4255e-05 deg tp 2458740.823151969666 (2019-Sep-14.32315197) 0.00019227 TDB period 1555.332898513723 4.26 2.2681e-05 6.21e-08 d yr n .2314617020857825 3.3754e-09 deg/d Q 2.806667147507911 2.7286e-08 au   Orbit Determination Parameters    # obs. used (total)      221      data-arc span      6792 days (18.60 yr)      first obs. used      2001-03-23      last obs. used      2019-10-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46889      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 19:12:57   Additional Information  Earth MOID = 1.44892 au   Jupiter MOID = 2.42984 au   T_jup = 3.383  [ hide covariance matrix ] Orbital Elements at Epoch 2457429.5 (2016-Feb-11.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07005281942944648 5.1803e-08   q 2.443224496486048 1.4432e-07 au tp 2457186.194735743362 (2015-Jun-12.69473574) 0.00019462 TDB node 24.0339324362428 3.3145e-05 deg peri 305.281422938045 5.7318e-05 deg i 8.387987637320292 6.15e-06 deg   Orbit Determination Parameters    # obs. used (total)      221      data-arc span      6792 days (18.60 yr)      first obs. used      2001-03-23      last obs. used      2019-10-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .46889      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 19:12:57   Additional Information  Jupiter MOID = 2.42984 au   T_jup = 3.383  Orbit Covariance (6×6)   e q tp node peri i e 2.683501379381892E-15 -7.379589445906183E-15 3.586597788651447E-12 -1.141901885817162E-14 8.994595843585948E-13 -4.31886724038035E-15 q -7.379589445906183E-15 2.082729328086496E-14 -1.128738367524851E-11 3.066786169859278E-14 -2.79720479395228E-12 1.258129998527632E-14 tp 3.586597788651447E-12 -1.128738367524851E-11 3.787826064192177E-8 -3.884058872383207E-11 9.118444850875142E-9 -1.028975569123988E-11 node -1.141901885817162E-14 3.066786169859278E-14 -3.884058872383207E-11 1.098558067252519E-9 -1.095758116485435E-9 -9.349128792420743E-12 peri 8.994595843585948E-13 -2.79720479395228E-12 9.118444850875142E-9 -1.095758116485435E-9 3.285372391217801E-9 6.827454791343938E-12 i -4.31886724038035E-15 1.258129998527632E-14 -1.028975569123988E-11 -9.349128792420743E-12 6.827454791343938E-12 3.782228389757935E-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 16.4   n/a MPO494621   305213 (2007 WV47)          Discovered 2007-Nov-20 by Mt. Lemmon Survey at Mount Lemmon 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 ] 2021-Jan-21 09:38 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin