+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   26549 Tankanran (2000 DZ57) Classification: Main-belt Asteroid          SPK-ID: 2026549 [ 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 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1965491256955204 4.2028e-08   a 2.281167567115026 8.733e-09 au q 1.83280607623359 9.3797e-08 au i 5.419580553077305 5.395e-06 deg node 187.4071604505537 3.7341e-05 deg peri 135.6644598398697 3.9452e-05 deg M 220.906642126238 1.4548e-05 deg tp 2459686.725912655658 (2022-Apr-17.22591266) 5.2515e-05 TDB period 1258.444912336508 3.45 7.2265e-06 1.979e-08 d yr n .2860673490519354 1.6427e-09 deg/d Q 2.729529057996461 1.0449e-08 au   Orbit Determination Parameters    # obs. used (total)      925      data-arc span      15832 days (43.35 yr)      first obs. used      1977-09-09      last obs. used      2021-01-13      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .56172      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 19:14:46   Additional Information  Earth MOID = .823646 au   Jupiter MOID = 2.61372 au   T_jup = 3.574  [ 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 15.60   n/a E2021B10   diameter diameter 3.080 km 0.808 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.098   0.039 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   26549 Tankanran           Discovered 2000 Feb. 29 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Tan Kan-Ran (b. 1992) was awarded second place in the 2010 Intel International Science and Engineering Fair for his energy-and-transportation team project. He attends the Beijing No. 4 High School, Beijing, China. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20110319/MPCPages.arc Last Updated: 2011-03-23 [ show close-approach data ] Alternate Designations  2000 DZ57 = 1977 RP19 = 1998 WX33  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Feb-27 20:02 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin