+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   22644 Matejbel (1998 OZ4) Classification: Main-belt Asteroid          SPK-ID: 2022644 [ 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 18 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1233684441133223 4.6499e-08   a 3.146899771387382 2.5455e-08 au q 2.758671642810751 1.5237e-07 au i 10.13376680865055 5.9385e-06 deg node 205.7720148497498 2.2598e-05 deg peri 212.6132211062865 3.202e-05 deg M 257.2814791907406 2.5002e-05 deg tp 2459582.293746904988 (2022-Jan-02.79374690) 0.00014511 TDB period 2039.026138963982 5.58 2.4741e-05 6.774e-08 d yr n .1765548725054177 2.1422e-09 deg/d Q 3.535127899964013 2.8596e-08 au   Orbit Determination Parameters    # obs. used (total)      791      data-arc span      9686 days (26.52 yr)      first obs. used      1993-10-12      last obs. used      2020-04-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .54166      source      ORB      producer      Otto Matic      solution date      2020-May-20 05:33:05   Additional Information  Earth MOID = 1.77628 au   Jupiter MOID = 1.87389 au   T_jup = 3.173  [ 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 14.3   n/a MPO435911   22644 Matejbel           Discovered 1998 July 27 by P. Pravec and U. Babiaková at Ondřejov. Matej Bel (1684-1749), Slovak historian and a great scholar of the eighteenth century, was a pioneer of collaborative research, member of numerous scholarly societies and author of the book Notitia Hungariae novae historico-geographica. The University of Banská Bystrica, Slovakia, bears his name. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010902/MPCPages.arc Last Updated: 2009-05-11 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-05 23:33 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin