+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   46265 (2001 HC51) Classification: Main-belt Asteroid          SPK-ID: 2046265 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1273001379235695 4.5347e-08   a 3.059376608573368 2.2132e-08 au q 2.669917544341835 1.3729e-07 au i 10.17879340270282 4.5293e-06 deg node 225.4704178503974 2.7129e-05 deg peri 68.80331994524198 3.2034e-05 deg M 130.4532384180426 1.8212e-05 deg tp 2458292.227787577372 (2018-Jun-22.72778758) 9.7219e-05 TDB period 1954.554747464828 5.35 2.1209e-05 5.807e-08 d yr n .1841851708001227 1.9986e-09 deg/d Q 3.448835672804899 2.4949e-08 au   Orbit Determination Parameters    # obs. used (total)      793      data-arc span      8430 days (23.08 yr)      first obs. used      1997-09-30      last obs. used      2020-10-29      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .5182      source      ORB      producer      Otto Matic      solution date      2020-Nov-12 23:48:06   Additional Information  Earth MOID = 1.67533 au   Jupiter MOID = 1.76539 au   T_jup = 3.198  [ 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 14.5   n/a MPO502464   46265 (2001 HC51)          Discovered 2001-Apr-23 by LINEAR at Socorro Reference: 20020822/Numbers.arc Last Updated: 2004-04-19 [ 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 1919-Jul-26 02:04 00:03 Jupiter 1.97099621613971 1.97099464563921 1.97099778665052 2.44445915822016 2.26183418427888 2422165.586351384 3.45908080447854 290.056220770481 39.4626487576108 -72.9818426426903 2533527.50565926 T 25 CATAB v2.0f-lin.ifort 2020-Nov-12 23:48:07 2020-Nov-12 23:48 1929-Feb-13 19:16 00:03 Jupiter 1.83319093981323 1.83318993707407 1.83319194256281 3.96067059136873 3.84224090822215 2425656.302654570 2.7787688922845 246.31478545558 16.81915807887 -80.0609737851728 3169387.9392292 T 25 CATAB v2.0f-lin.ifort 2020-Nov-12 23:48:07 2020-Nov-12 23:48 1977-Nov-17 03:30 00:01 Jupiter 1.79664968910356 1.79664909950533 1.79665027870211 3.10464807471284 2.94888937587547 2443464.645833589 1.25604740225632 103.581294053374 30.2607537391119 84.3467711405494 2527010.1264836 T 25 CATAB v2.0f-lin.ifort 2020-Nov-12 23:48:07 2020-Nov-12 23:48 2036-Apr-03 09:48 < 00:01 Jupiter 1.79454044649593 1.79453999840411 1.79454089458805 3.78903073658444 3.66234276980513 2464786.908263541 0.734889849403118 84.6421312373501 17.0039610279611 -83.1624643003528 2989864.23637774 T 25 CATAB v2.0f-lin.ifort 2020-Nov-12 23:48:07 2020-Nov-12 23:48 2085-Jan-14 05:57 00:03 Jupiter 1.85901043640599 1.85900962708227 1.85901124572991 2.72684466638953 2.55429444726118 2482604.748246909 2.50529164403415 108.018631996237 58.3067686994873 -89.738015139413 1752707.12944039 T 25 CATAB v2.0f-lin.ifort 2020-Nov-12 23:48:07 2020-Nov-12 23:48 2094-Aug-26 00:52 00:03 Jupiter 1.97789381535563 1.97789242807527 1.9778952026425 4.39706571896118 4.29856924626716 2486115.535971357 2.59940814055054 202.710966925335 18.0266953028478 -71.8285701695324 3648485.32040881 T 25 CATAB v2.0f-lin.ifort 2020-Nov-12 23:48:07 2020-Nov-12 23:48 2143-May-24 21:33 00:04 Jupiter 1.78524966524679 1.78524921073613 1.78525011976272 3.52857570008474 3.39145018516979 2503918.397934850 4.24141654457236 349.869484653966 18.3930143912173 89.3791508438167 2555992.33018416 T 25 CATAB v2.0f-lin.ifort 2020-Nov-12 23:48:07 2020-Nov-12 23:48 2192-Mar-23 08:50 00:07 Jupiter 1.92959217543787 1.92959007572349 1.92959427517682 2.33660536618434 2.14051292546786 2521753.867733251 6.52318894976569 411.945799421905 46.6565928536407 -66.5630029260981 2550922.91922077 T 25 CATAB v2.0f-lin.ifort 2020-Nov-12 23:48:07 2020-Nov-12 23:48 Alternate Designations  2001 HC51 = 1997 SF29  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-23 15:30 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin