+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   17927 Ghoshal (1999 GL20) Classification: Main-belt Asteroid          SPK-ID: 2017927 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .05577868163208213 3.6829e-08   a 2.236897692724642 6.6582e-09 au q 2.112126488478615 8.1147e-08 au i 4.64201934689047 2.859e-06 deg node 81.18346788734657 4.8722e-05 deg peri 82.69358471879592 5.6655e-05 deg M 209.7813482973041 3.0593e-05 deg tp 2459710.404644824022 (2022-May-10.90464482) 0.0001048 TDB period 1221.989879791696 3.35 5.4559e-06 1.494e-08 d yr n .2946014577971519 1.3153e-09 deg/d Q 2.361668896970669 7.0295e-09 au   Orbit Determination Parameters    # obs. used (total)      1783      data-arc span      11106 days (30.41 yr)      first obs. used      1990-09-14      last obs. used      2021-02-09      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .48688      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 02:17:51   Additional Information  Earth MOID = 1.12498 au   Jupiter MOID = 2.61006 au   T_jup = 3.631  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 14.96   n/a E2021B10   diameter diameter 2.248 km 0.316 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.319   0.083 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   17927 Ghoshal           Discovered 1999 Apr. 15 by the Lincoln Laboratory Near-Earth Asteroid Research Team at Socorro. Shivani Ghoshal (b. 1986) was awarded fourth place in the 2003 Intel International Science and Engineering Fair for her behavioral and social sciences project. She attends the Mira Loma High School, Sacramento, California, 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 Alternate Designations  1999 GL20 = 1990 RA14 = 1992 DO1  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-14 09:09 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin