+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   19495 Terentyeva (1998 KZ8) Classification: Main-belt Asteroid          SPK-ID: 2019495 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .07047800981335818 1.6496e-08   a 2.550042026156322 9.7106e-09 au q 2.370320139212401 4.3629e-08 au i 15.95142963844715 1.1508e-06 deg node 96.301426805117 2.5575e-06 deg peri 322.670885172751 1.5145e-05 deg M 13.86342625637825 1.6e-05 deg tp 2459143.222044251498 (2020-Oct-20.72204425) 6.6159e-05 TDB period 1487.371425225691 4.07 8.4959e-06 2.326e-08 d yr n .2420377276949329 1.3825e-09 deg/d Q 2.729763913100244 1.0395e-08 au   Orbit Determination Parameters    # obs. used (total)      2266      data-arc span      16535 days (45.27 yr)      first obs. used      1975-12-06      last obs. used      2021-03-14      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .42084      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:55:23   Additional Information  Earth MOID = 1.39948 au   Jupiter MOID = 2.51641 au   T_jup = 3.383  [ 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 13.0   n/a MPO439228   diameter diameter 5.958 km 0.261 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 2.33 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Result based on fragmentary lightcurve(s), may be completely wrong. Published Reference List: [Kim, M.-J.; Choi, Y.-J.; Moon, H.-K.; Byun, Y.-I.; et al. (2014) Astron. J. 147, A56.] geometric albedo albedo 0.377   0.054 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   19495 Terentyeva           Discovered 1998 May 23 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station. Alexandra K. Terentyeva (b. 1933) has been a meteor astronomer for more than 50 years at the Institute of Astronomy of the Russian Academy of Sciences. Her achievements include contributing new understanding of the dynamics of meteoroid streams and publishing a catalogue of minor streams. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2014-07-12 Last Updated: 2014-08-13 Alternate Designations  1998 KZ8 = 1975 XT6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-18 00:17 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin