+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120176 (2003 KQ30) Classification: Main-belt Asteroid          SPK-ID: 2120176 [ 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 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08389090771562717 4.3943e-08   a 3.110572811388028 2.9874e-08 au q 2.849624034725136 1.3606e-07 au i 11.54946545401661 8.5388e-06 deg node 187.5293183383803 2.4329e-05 deg peri 263.6094115326876 5.8463e-05 deg M 204.4864658010244 5.4527e-05 deg tp 2460066.114803111937 (2023-May-01.61480311) 0.00030861 TDB period 2003.821279770967 5.49 2.8867e-05 7.903e-08 d yr n .1796567406655884 2.5882e-09 deg/d Q 3.37152158805092 3.238e-08 au   Orbit Determination Parameters    # obs. used (total)      315      data-arc span      8467 days (23.18 yr)      first obs. used      1997-04-16      last obs. used      2020-06-21      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .65521      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 17:05:16   Additional Information  Earth MOID = 1.89541 au   Jupiter MOID = 1.85745 au   T_jup = 3.182  [ hide covariance matrix ] Orbital Elements at Epoch 2456646.5 (2013-Dec-20.0) TDB Reference: JPL 14 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08774002752839939 4.4217e-08   q 2.830828617423603 1.3732e-07 au tp 2456063.367448316396 (2012-May-15.86744832) 0.00027472 TDB node 187.7233023327912 2.4333e-05 deg peri 262.6989243868372 5.6067e-05 deg i 11.55728446784044 8.5447e-06 deg   Orbit Determination Parameters    # obs. used (total)      315      data-arc span      8467 days (23.18 yr)      first obs. used      1997-04-16      last obs. used      2020-06-21      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .65521      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 17:05:16   Additional Information  Jupiter MOID = 1.85745 au   T_jup = 3.182  Orbit Covariance (6×6)   e q tp node peri i e 1.955157368373534E-15 -5.9495271848869E-15 -1.811277388495838E-12 -1.72838537483204E-15 -3.543220721099472E-13 1.443128473227316E-15 q -5.9495271848869E-15 1.885729888995444E-14 7.249798352681307E-12 -2.492061299938374E-16 1.438689604123411E-12 -3.266256581550767E-15 tp -1.811277388495838E-12 7.249798352681307E-12 7.547278040323117E-8 -6.12303921353743E-11 1.388532136621703E-8 -1.939108602102157E-11 node -1.72838537483204E-15 -2.492061299938374E-16 -6.12303921353743E-11 5.920901616163446E-10 -5.914329192846791E-10 6.460929381498834E-12 peri -3.543220721099472E-13 1.438689604123411E-12 1.388532136621703E-8 -5.914329192846791E-10 3.143547447381012E-9 -9.822366706997475E-12 i 1.443128473227316E-15 -3.266256581550767E-15 -1.939108602102157E-11 6.460929381498834E-12 -9.822366706997475E-12 7.301223560255112E-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 15.29   n/a E2021B55   120176 (2003 KQ30)          Discovered 2003-May-26 by Spacewatch at Kitt Peak Reference: 20051116/Numbers.arc Last Updated: 2005-11-21 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-18 03:56 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin