+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   413998 (2007 EU222) Classification: Main-belt Asteroid          SPK-ID: 2413998 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1348130789723685 7.9221e-08   a 2.72105163269233 5.0049e-08 au q 2.354218284046286 2.2987e-07 au i 13.23139144200414 9.5452e-06 deg node 183.9514473781217 2.3922e-05 deg peri 317.1334024119845 4.5264e-05 deg M 44.6126097101174 3.057e-05 deg tp 2458997.330398324269 (2020-May-27.83039832) 0.00013963 TDB period 1639.470478829129 4.49 4.5233e-05 1.238e-07 d yr n .2195830938396058 6.0583e-09 deg/d Q 3.087884981338373 5.6797e-08 au   Orbit Determination Parameters    # obs. used (total)      153      data-arc span      7089 days (19.41 yr)      first obs. used      2000-08-30      last obs. used      2020-01-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60302      source      ORB      producer      Otto Matic      solution date      2020-Feb-26 07:03:41   Additional Information  Earth MOID = 1.38238 au   Jupiter MOID = 1.96438 au   T_jup = 3.307  [ hide covariance matrix ] Orbital Elements at Epoch 2457128.5 (2015-Apr-16.0) TDB Reference: JPL 16 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .135158047234385 8.0043e-08   q 2.353014072071914 2.3254e-07 au tp 2457360.527465510575 (2015-Dec-04.02746551) 0.00014847 TDB node 183.9789687985062 2.3932e-05 deg peri 317.7965213214358 4.482e-05 deg i 13.22882951239103 9.5456e-06 deg   Orbit Determination Parameters    # obs. used (total)      153      data-arc span      7089 days (19.41 yr)      first obs. used      2000-08-30      last obs. used      2020-01-27      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .60302      source      ORB      producer      Otto Matic      solution date      2020-Feb-26 07:03:41   Additional Information  Jupiter MOID = 1.96438 au   T_jup = 3.307  Orbit Covariance (6×6)   e q tp node peri i e 6.406870857471543E-15 -1.830903018590656E-14 7.153575469083378E-12 -9.163381909867375E-14 1.802655518253488E-12 -1.341477584441529E-14 q -1.830903018590656E-14 5.407507750033005E-14 -2.199271436228034E-11 2.6676665242822E-13 -5.600447791537018E-12 4.561985776523665E-14 tp 7.153575469083378E-12 -2.199271436228034E-11 2.20443253918199E-8 -1.559586656824742E-10 5.646437816284033E-9 -2.20346672122324E-11 node -9.163381909867375E-14 2.6676665242822E-13 -1.559586656824742E-10 5.727168895935595E-10 -5.94230806632308E-10 -4.840139967587882E-11 peri 1.802655518253488E-12 -5.600447791537018E-12 5.646437816284033E-9 -5.94230806632308E-10 2.008867811518421E-9 4.180355511390508E-11 i -1.341477584441529E-14 4.561985776523665E-14 -2.20346672122324E-11 -4.840139967587882E-11 4.180355511390508E-11 9.111800494437421E-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 16.6   n/a MPO455949   413998 (2007 EU222)          Discovered 2000-Aug-30 by Spacewatch at Kitt Peak Reference: Last Updated: 2014-11-10 [ show close-approach data ] Alternate Designations  2007 EU222 = 2012 HB46  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-12 08:04 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin