+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   523057 (2016 QB91) Classification: Main-belt Asteroid          SPK-ID: 2523057 [ 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 4 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1864239378623694 2.044e-07   a 3.054685163691106 1.8269e-07 au q 2.485218726546054 6.4947e-07 au i 19.66847844968819 2.2593e-05 deg node 46.10476939106569 2.569e-05 deg peri 4.945131595528114 3.9396e-05 deg M 233.8157624836394 2.9029e-05 deg tp 2459684.019198259441 (2022-Apr-14.51919826) 0.00019491 TDB period 1950.060611504623 5.34 0.00017494 4.79e-07 d yr n .1846096464264421 1.6561e-08 deg/d Q 3.624151600836159 2.1675e-07 au   Orbit Determination Parameters    # obs. used (total)      61      data-arc span      2243 days (6.14 yr)      first obs. used      2013-04-06      last obs. used      2019-05-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .62922      source      ORB      producer      Otto Matic      solution date      2019-Sep-24 08:40:21   Additional Information  Earth MOID = 1.49611 au   Jupiter MOID = 1.79061 au   T_jup = 3.121  [ hide covariance matrix ] Orbital Elements at Epoch 2457489.5 (2016-Apr-11.0) TDB Reference: JPL 4 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1895077624652249 2.0433e-07   q 2.471283846215967 6.5004e-07 au tp 2457737.742058231499 (2016-Dec-15.24205823) 0.00013843 TDB node 46.14796097874583 2.5665e-05 deg peri 4.988840139085994 3.8805e-05 deg i 19.7072715803888 2.2622e-05 deg   Orbit Determination Parameters    # obs. used (total)      61      data-arc span      2243 days (6.14 yr)      first obs. used      2013-04-06      last obs. used      2019-05-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .62922      source      ORB      producer      Otto Matic      solution date      2019-Sep-24 08:40:21   Additional Information  Jupiter MOID = 1.79061 au   T_jup = 3.121  Orbit Covariance (6×6)   e q tp node peri i e 4.175279181690109E-14 -1.292025915242627E-13 -1.654344810536161E-11 -5.930247428101361E-13 -2.818425993862643E-12 -7.673837344960854E-14 q -1.292025915242627E-13 4.225525170547162E-13 4.501248179205696E-11 1.86086571975828E-12 6.816910942732739E-12 3.298953408005081E-13 tp -1.654344810536161E-11 4.501248179205696E-11 1.91614858676613E-8 2.507115267766371E-10 4.053260740978885E-9 -2.161636408493341E-11 node -5.930247428101361E-13 1.86086571975828E-12 2.507115267766371E-10 6.586719813374724E-10 -5.674280446287005E-10 -3.02649802774045E-10 peri -2.818425993862643E-12 6.816910942732739E-12 4.053260740978885E-9 -5.674280446287005E-10 1.50582324485554E-9 2.784681512665258E-10 i -7.673837344960854E-14 3.298953408005081E-13 -2.161636408493341E-11 -3.02649802774045E-10 2.784681512665258E-10 5.117762377149015E-10 [ 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 16.5   n/a MPO448138   523057 (2016 QB91)          Discovered 2014-May-08 by Pan-STARRS 1 at Haleakala Reference: Last Updated: 2018-05-31 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-16 10:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin