+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   20237 Clavius (1998 CC3) Classification: Main-belt Asteroid          SPK-ID: 2020237 [ 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 32 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06723837893798842 4.5794e-08   a 2.149548703639452 6.1598e-09 au q 2.005016533358481 9.9053e-08 au i 3.661625109932817 4.2531e-06 deg node 335.1163254172142 4.2395e-05 deg peri 1.565963047700806 4.7051e-05 deg M 201.1198014064551 2.0947e-05 deg tp 2459508.526813202129 (2021-Oct-21.02681320) 6.7287e-05 TDB period 1151.116717953278 3.15 4.948e-06 1.355e-08 d yr n .3127397894455842 1.3443e-09 deg/d Q 2.294080873920424 6.574e-09 au   Orbit Determination Parameters    # obs. used (total)      1896      data-arc span      9693 days (26.54 yr)      first obs. used      1993-10-14      last obs. used      2020-04-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48003      source      ORB      producer      Otto Matic      solution date      2020-May-20 05:10:12   Additional Information  Earth MOID = .995171 au   Jupiter MOID = 2.91142 au   T_jup = 3.701  [ 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 14.7   n/a MPO452456   diameter diameter 3.639 km 0.106 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.193   0.042 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   20237 Clavius           Discovered 1998 Feb. 6 by E. W. Elst at the European Southern Observatory. Christopher Clavius (1538-1612) was a German mathematician and astronomer. He figured out where to place the leap years in the Gregorian calendar. Pope Gregory XII revised the Julian calendar with the assistance of Clavius. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2018-05-29 Last Updated: 2018-09-17 Alternate Designations  1998 CC3 = 1993 TB12  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2020-Oct-26 05:47 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin