+ 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 2459000.5 (2020-May-31.0) TDB Reference: JPL 21 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1652626091108773 3.2599e-08   a 2.250159565405321 8.3955e-09 au q 1.87829232471064 7.5144e-08 au i 6.714349926677117 3.7182e-06 deg node 113.0347051109441 3.2901e-05 deg peri 297.1629071004275 3.542e-05 deg M 245.029972265735 1.224e-05 deg tp 2459394.231840249919 (2021-Jun-28.73184025) 4.2522e-05 TDB period 1232.873169497605 3.38 6.8999e-06 1.889e-08 d yr n .2920008391022896 1.6342e-09 deg/d Q 2.622026806100002 9.7829e-09 au   Orbit Determination Parameters    # obs. used (total)      1599      data-arc span      10860 days (29.73 yr)      first obs. used      1990-09-22      last obs. used      2020-06-16      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .48506      source      ORB      producer      Otto Matic      solution date      2020-Jun-23 18:18:05   Additional Information  Earth MOID = .900362 au   Jupiter MOID = 2.74176 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 15.0   n/a MPO384909   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 ] 2020-Aug-05 00:24 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin