+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   26193 (1997 CL20) Classification: Main-belt Asteroid          SPK-ID: 2026193 [ 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 23 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2390948781015534 3.4107e-08   a 2.307167468636442 9.0708e-09 au q 1.755535543962942 7.7594e-08 au i 3.039852927172142 4.8038e-06 deg node 53.94240560062894 7.7782e-05 deg peri 220.3145567138862 7.9235e-05 deg M 142.8563091180878 1.708e-05 deg tp 2458492.558109913383 (2019-Jan-09.05810991) 6.0104e-05 TDB period 1280.021033442963 3.50 7.5487e-06 2.067e-08 d yr n .2812453784698229 1.6586e-09 deg/d Q 2.858799393309941 1.124e-08 au   Orbit Determination Parameters    # obs. used (total)      1226      data-arc span      8364 days (22.90 yr)      first obs. used      1997-02-12      last obs. used      2020-01-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .50249      source      ORB      producer      Otto Matic      solution date      2020-Jan-29 02:31:09   Additional Information  Earth MOID = .740621 au   Jupiter MOID = 2.2678 au   T_jup = 3.547  [ show covariance matrix ] [ 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 15.0   n/a MPO502353   26193 (1997 CL20)          Discovered 1997-Feb-12 by Kobayashi, T. at Oizumi Reference: 20010705/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1997 CL20 = 1998 SM70  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-11 16:31 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin