+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   58497 (1996 UK4) Classification: Main-belt Asteroid          SPK-ID: 2058497 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1190807348775474 4.2553e-08   a 2.15750307738415 7.3259e-09 au q 1.900586025428675 9.1792e-08 au i 3.211341881791323 4.1839e-06 deg node 43.75657413176329 6.5251e-05 deg peri 281.7534401040248 6.738e-05 deg M 211.5633961548248 1.7627e-05 deg tp 2459477.769928205564 (2021-Sep-20.26992821) 5.711e-05 TDB period 1157.512161442434 3.17 5.8956e-06 1.614e-08 d yr n .3110118510991591 1.5841e-09 deg/d Q 2.414420129339625 8.1983e-09 au   Orbit Determination Parameters    # obs. used (total)      1017      data-arc span      8572 days (23.47 yr)      first obs. used      1996-10-29      last obs. used      2020-04-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .53642      source      ORB      producer      Otto Matic      solution date      2020-May-20 11:36:21   Additional Information  Earth MOID = .891909 au   Jupiter MOID = 2.85731 au   T_jup = 3.688  [ 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 16.26   n/a E2021B10   58497 (1996 UK4)          Discovered 1996-Oct-29 by BAO Schmidt CCD Asteroid Program at Xinglong Reference: 20030614/Numbers.arc Last Updated: 2004-04-19 Alternate Designations  1996 UK4 = 1999 RZ173  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-01 11:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin