+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   20376 Joyhines (1998 KB44) Classification: Main-belt Asteroid          SPK-ID: 2020376 [ 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 .1297323460792585 4.4869e-08   a 2.424613200925902 9.3721e-09 au q 2.110062442035044 1.1163e-07 au i 1.998199523000311 3.8248e-06 deg node 57.19598004100889 0.00012213 deg peri 147.0217849454023 0.00012318 deg M 23.36999414613497 1.7838e-05 deg tp 2459110.980380459836 (2020-Sep-18.48038046) 6.8146e-05 TDB period 1378.993200979854 3.78 7.9955e-06 2.189e-08 d yr n .2610600253461723 1.5136e-09 deg/d Q 2.739163959816759 1.0588e-08 au   Orbit Determination Parameters    # obs. used (total)      1174      data-arc span      9062 days (24.81 yr)      first obs. used      1995-08-20      last obs. used      2020-06-11      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .54961      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 03:18:57   Additional Information  Earth MOID = 1.10564 au   Jupiter MOID = 2.2173 au   T_jup = 3.499  [ 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 15.15   n/a E2021B10   20376 Joyhines           Discovered 1998 May 22 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Joy Ellen Hines (b. 1992) is a finalist in the 2004 Discovery Channel Young Scientist Challenge (DCYSC), a middle school science competition, for her biochemistry, medicine, health, and microbiology project. She attends the Orchard Day School, Ft. Wayne, Indiana. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20041028/MPCPages.arc Last Updated: 2004-10-29 [ show close-approach data ] Alternate Designations  1998 KB44 = 1999 TY23  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-18 00:55 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin