+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   120592 (1995 SM52) Classification: Main-belt Asteroid          SPK-ID: 2120592 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 20 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .04163250144886325 4.1334e-08   a 2.807067514233457 1.9086e-08 au q 2.690202271880076 1.2058e-07 au i 3.083542610802881 4.5915e-06 deg node 209.8566775964426 8.9093e-05 deg peri 34.63658004387469 0.00010811 deg M 260.7405762633892 6.3129e-05 deg tp 2459674.138462782371 (2022-Apr-04.63846278) 0.00030251 TDB period 1717.820234924081 4.70 1.7519e-05 4.796e-08 d yr n .2095679121022289 2.1373e-09 deg/d Q 2.923932756586838 1.988e-08 au   Orbit Determination Parameters    # obs. used (total)      335      data-arc span      10164 days (27.83 yr)      first obs. used      1993-03-25      last obs. used      2021-01-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .55939      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 09:25:28   Additional Information  Earth MOID = 1.67614 au   Jupiter MOID = 2.06312 au   T_jup = 3.319  [ 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 16.0   n/a MPO453676   120592 (1995 SM52)          Discovered 1995-Sep-29 by Spacewatch at Kitt Peak Reference: 20060314/Numbers.arc Last Updated: 2006-03-23 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Mar-07 05:48 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin