+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   523135 (2016 SL54) Classification: Main-belt Asteroid          SPK-ID: 2523135 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 5 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .0393611972928446 1.011e-07   a 2.791346271993769 5.0521e-08 au q 2.681475540669176 3.1371e-07 au i 7.050913006114731 7.2565e-06 deg node 128.0444551970556 4.9746e-05 deg peri 240.7039264563308 9.3653e-05 deg M 302.0770725578803 7.6692e-05 deg tp 2459274.573472038262 (2021-Mar-01.07347204) 0.0003616 TDB period 1703.409242089295 4.66 4.6245e-05 1.266e-07 d yr n .2113408751724551 5.7376e-09 deg/d Q 2.901217003318362 5.251e-08 au   Orbit Determination Parameters    # obs. used (total)      103      data-arc span      3305 days (9.05 yr)      first obs. used      2011-09-21      last obs. used      2020-10-08      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5707      source      ORB      producer      Otto Matic      solution date      2020-Nov-11 22:46:09   Additional Information  Earth MOID = 1.68638 au   Jupiter MOID = 2.29382 au   T_jup = 3.317  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.8   n/a MPO448157   523135 (2016 SL54)          Discovered 2014-Feb-27 by Mt. Lemmon Survey at Mount Lemmon Reference: Last Updated: 2018-05-31 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-25 07:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin