+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   29456 Evakrchova (1997 SN2) Classification: Main-belt Asteroid          SPK-ID: 2029456 [ 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 .1576441392464159 4.2426e-08   a 2.385646966084467 1.0073e-08 au q 2.009563703570258 1.042e-07 au i 1.590589837126203 4.7982e-06 deg node 230.1002461095742 0.00016567 deg peri 187.6403811856792 0.00016658 deg M 357.848820812479 1.9424e-05 deg tp 2459008.542327930967 (2020-Jun-08.04232793) 7.2649e-05 TDB period 1345.884188515528 3.68 8.5241e-06 2.334e-08 d yr n .2674821526784336 1.6941e-09 deg/d Q 2.761730228598676 1.1661e-08 au   Orbit Determination Parameters    # obs. used (total)      754      data-arc span      10962 days (30.01 yr)      first obs. used      1990-11-12      last obs. used      2020-11-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59134      source      ORB      producer      Otto Matic      solution date      2020-Dec-17 20:56:42   Additional Information  Earth MOID = 1.02169 au   Jupiter MOID = 2.56376 au   T_jup = 3.518  [ 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 15.5   n/a MPO257069   diameter diameter 4.495 km 0.088 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.050   0.018 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   29456 Evakrchová           Discovered 1997 Sept. 24 by L. Šarounová at Ondřejov. Since 1980 Slovak amateur astronomer Eva Krchová (b. 1953) has been a spiritus agens of amateur astronomy in Spišská Nová Ves, together with her late husband Dušan. In spite of a debilitating and incurable illness, she maintains contacts with Slovak and Czech astronomers. The name was suggested by J. Grygar. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20080520/MPCPages.arc Last Updated: 2008-05-22 [ show close-approach data ] Alternate Designations  1997 SN2 = 1990 VL15 = 1993 OK8  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-20 01:35 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin