+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   14539 Clocke Roeland (1997 RU9) Classification: Main-belt Asteroid          SPK-ID: 2014539 [ 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 33 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1478808657243803 3.644e-08   a 2.562553029601412 9.5101e-09 au q 2.183600469119322 9.7018e-08 au i 4.244566875426606 4.2057e-06 deg node 178.4337402351638 4.3115e-05 deg peri 30.18082393422775 4.5462e-05 deg M 332.6746628387384 1.5574e-05 deg tp 2459114.228876171648 (2020-Sep-21.72887617) 6.5129e-05 TDB period 1498.330841452016 4.10 8.3409e-06 2.284e-08 d yr n .2402673628817037 1.3375e-09 deg/d Q 2.941505590083503 1.0916e-08 au   Orbit Determination Parameters    # obs. used (total)      1536      data-arc span      21747 days (59.54 yr)      first obs. used      1960-10-22      last obs. used      2020-05-07      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56217      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 02:39:17   Additional Information  Earth MOID = 1.18015 au   Jupiter MOID = 2.01939 au   T_jup = 3.415  [ 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 14.93   n/a E2020-QM5   14539 Clocke Roeland           Discovered 1997 Sept. 10 by T. Pauwels at Uccle. Klokke Roeland (or `Clocke Roeland', using the historic spelling) is the storm bell that is the symbol of the independent spirit of the city of Ghent. The name in fact refers to three successive bells, cast in 1314, 1660 and 1948 respectively. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20020921/MPCPages.arc Last Updated: 2003-10-02 [ hide close-approach data ] Close-Approach Data   ...sorted by Date/Time (TDB) Date/Time (TDB) Time Uncertainty (days_HH:MM) Body Nominal Distance (au) Minimum Distance (au) Maximum Distance (au) V-relative (km/s) V-infinity (km/s) JD (TDB) Time Uncertainty (minutes) Semi-major axis (km) Semi-minor axis (km) range-LOV angle (deg) N-sigma BP Orbit Ref. Reference Modified 2050-Mar-20 05:05 < 00:01 Iris 0.0376426970261169 0.0376385873206664 0.0376468069595658 7.6853967939766 7.68539677410531 2469885.711657042 0.46776493688466 254.136075604925 48.3846493317298 -37.0500174697629 72306.7182550524 T 33 CATAB v2.0f-lin.ifort 2020-Nov-13 02:39:21 2020-Nov-13 02:39 2157-Jan-13 16:28 < 00:01 Eunom 0.040058167987034 0.0400417677006168 0.0400745685136707 7.58435355414642 7.58435350794193 2508901.186077451 0.871869842324161 832.087985843644 39.3145009626976 10.7294795708872 29235.1700543508 T 33 CATAB v2.0f-lin.ifort 2020-Nov-13 02:39:21 2020-Nov-13 02:39 Alternate Designations  1997 RU9 = 1998 XE58 = 2028 T-1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Mar-01 19:54 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin