+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   18004 Krystosek (1999 JD86) Classification: Main-belt Asteroid          SPK-ID: 2018004 [ 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 24 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1649290077005182 3.1931e-08   a 2.249429037836901 8.3629e-09 au q 1.87843293873373 7.3632e-08 au i 6.714455705731103 3.6831e-06 deg node 113.034174812089 3.2152e-05 deg peri 297.2725890034627 3.4608e-05 deg M 303.2918893213389 1.2257e-05 deg tp 2459394.610733245789 (2021-Jun-29.11073325) 4.2284e-05 TDB period 1232.272828916153 3.37 6.872e-06 1.881e-08 d yr n .2921430965224141 1.6292e-09 deg/d Q 2.620425136940073 9.7422e-09 au   Orbit Determination Parameters    # obs. used (total)      1675      data-arc span      11049 days (30.25 yr)      first obs. used      1990-09-22      last obs. used      2020-12-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .48058      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:19:47   Additional Information  Earth MOID = .899709 au   Jupiter MOID = 2.74313 au   T_jup = 3.601  [ 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 14.98   n/a E2021B10   diameter diameter 3.446 km 0.730 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.127   0.097 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   18004 Krystosek           Discovered 1999 May 12 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Rebecca Jennifer Krystosek (b. 1984) was awarded first place in the 2003 Intel International Science and Engineering Fair for her environmental science project. She attends the Bagley High School, Bagley, Minnesota, U.S.A. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20040614/MPCPages.arc Last Updated: 2009-12-11 [ show close-approach data ] Alternate Designations  1999 JD86 = 2000 QY133  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-22 15:36 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin