+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   58387 (1995 SZ78) Classification: Main-belt Asteroid          SPK-ID: 2058387 [ 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 19 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .03490940985545981 4.1017e-08   a 2.853894761331152 1.8258e-08 au q 2.754266979423494 1.1383e-07 au i 1.248735789663161 4.8605e-06 deg node 219.6528983421485 0.00020921 deg peri 75.41700339069602 0.00022376 deg M 120.1737998840175 8.0118e-05 deg tp 2458412.655240058242 (2018-Oct-21.15524006) 0.00039123 TDB period 1760.983790004777 4.82 1.6899e-05 4.627e-08 d yr n .2044311833211273 1.9618e-09 deg/d Q 2.953522543238811 1.8895e-08 au   Orbit Determination Parameters    # obs. used (total)      448      data-arc span      9189 days (25.16 yr)      first obs. used      1995-09-20      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .58558      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 21:40:25   Additional Information  Earth MOID = 1.73855 au   Jupiter MOID = 2.10457 au   T_jup = 3.303  [ 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 15.9   n/a MPO502540   58387 (1995 SZ78)          Discovered 1995-Sep-20 by Spacewatch at Kitt Peak Reference: 20030614/Numbers.arc Last Updated: 2004-04-19 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-20 11:51 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin