+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   32294 Zajonc (2000 QN9) Classification: Main-belt Asteroid          SPK-ID: 2032294 [ 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 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1444665794382146 4.7245e-08   a 2.631582438901424 1.2392e-08 au q 2.25140672544366 1.2571e-07 au i 12.8363128569948 4.8607e-06 deg node 7.922675331519521 1.928e-05 deg peri 247.4812197304745 2.5414e-05 deg M 339.8233036511025 1.6405e-05 deg tp 2459087.891954749772 (2020-Aug-26.39195475) 7.0985e-05 TDB period 1559.279238081858 4.27 1.1013e-05 3.015e-08 d yr n .2308759016395632 1.6307e-09 deg/d Q 3.011758152359187 1.4182e-08 au   Orbit Determination Parameters    # obs. used (total)      1341      data-arc span      10569 days (28.94 yr)      first obs. used      1991-09-15      last obs. used      2020-08-22      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4838      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 00:56:33   Additional Information  Earth MOID = 1.27417 au   Jupiter MOID = 2.12423 au   T_jup = 3.349  [ 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 14.1   n/a MPO468125   diameter diameter 4.140 km 0.746 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.236   0.076 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   32294 Zajonc           Discovered 2000 Aug. 26 by P. Kušnirák and P. Pravec at Ondřejov. Czech zoologist and amateur astronomer Ivo Zajonc (b. 1933) spent most of his professional life in Slovakia, where he served for 35 years as chair of the Nitra branch of the Slovak Union of Amateur Astronomers. A member of the Jihlava Astronomical Society, he was also elected an honorary fellow of the Slovak Astronomical Society. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20080321/MPCPages.arc Last Updated: 2008-03-26 Alternate Designations  2000 QN9 = 1991 RA23 = 1994 CW14  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jan-23 11:58 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin