+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   26340 Evamarkova (1998 XY8) Classification: Main-belt Asteroid          SPK-ID: 2026340 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1925421862426734 3.2602e-08   a 2.365407924892676 6.6952e-09 au q 1.909967111678094 7.604e-08 au i 10.80658169848969 4.2111e-06 deg node 277.7696307360145 2.0552e-05 deg peri 135.0071270370103 2.527e-05 deg M 31.35310678415522 1.2148e-05 deg tp 2459084.772764452856 (2020-Aug-23.27276445) 4.4872e-05 TDB period 1328.79350948488 3.64 5.6416e-06 1.545e-08 d yr n .2709224551672874 1.1502e-09 deg/d Q 2.820848738107256 7.9843e-09 au   Orbit Determination Parameters    # obs. used (total)      1574      data-arc span      15686 days (42.95 yr)      first obs. used      1978-02-08      last obs. used      2021-01-19      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48654      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 03:18:56   Additional Information  Earth MOID = .93772 au   Jupiter MOID = 2.55367 au   T_jup = 3.500  [ 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 14.13   n/a E2021B10   diameter diameter 5.253 km 0.017 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.119   0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   26340 Evamarková           Discovered 1998 Dec. 13 by J. Ticha and M. Tichy at Klet. Eva Marková (b. 1949) is a Czech astronomer interested in solar astronomy. She led eight expeditions to observe total solar eclipses. Since 1986 she has served as director of the Úpice Observatory, where she is also engaged in astronomy education, including summer youth astronomy camps. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20030806/MPCPages.arc Last Updated: 2003-10-02 [ 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 1948-May-01 11:53 00:01 Iris 0.045568426552937 0.0455602586443241 0.0455765944889902 2.22293956511588 2.22293950836386 2432672.994802448 1.47455710185409 410.280359108471 27.8754511304234 7.76703315251817 36855.7615570759 T 28 CATAB v2.0f-lin.ifort 2021-Feb-24 03:18:59 2021-Feb-24 03:18 Alternate Designations  1998 XY8 = 1987 WM  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-27 22:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin