+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   19960 (1986 CN1) Classification: Main-belt Asteroid          SPK-ID: 2019960 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 34 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1904602396279229 2.0064e-08   a 2.42001438766583 7.7008e-09 au q 1.959097867487975 4.8179e-08 au i 10.39601249238867 7.6368e-07 deg node 318.9407661790351 2.0127e-06 deg peri 255.6728005369687 4.8718e-06 deg M 45.91502175462789 5.2322e-06 deg tp 2459025.120978563670 (2020-Jun-24.62097856) 1.9917e-05 TDB period 1375.071715189052 3.76 6.5635e-06 1.797e-08 d yr n .2618045270100733 1.2496e-09 deg/d Q 2.880930907843685 9.1675e-09 au   Orbit Determination Parameters    # obs. used (total)      2041      data-arc span      12587 days (34.46 yr)      first obs. used      1986-02-03      last obs. used      2020-07-21      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .42783      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 03:10:16   Additional Information  Earth MOID = .983443 au   Jupiter MOID = 2.20303 au   T_jup = 3.467  [ 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 14.09   n/a E2021B10   diameter diameter 4.613 km 0.163 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.275   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   19960 (1986 CN1)          Discovered 1986-Feb-03 by Debehogne, H. at La Silla Reference: 20010109/Numbers.arc Last Updated: 2004-04-19 [ show close-approach data ] Alternate Designations  1986 CN1 = 1999 TZ203  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-21 09:40 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin