+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1741 Giclas (1960 BC) Classification: Main-belt Asteroid          SPK-ID: 2001741 [ 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 40 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06929659845637048 1.9825e-08   a 2.886835392057055 9.4539e-09 au q 2.686787519084038 6.1316e-08 au i 2.885143326844447 5.1762e-07 deg node 55.48623648112893 5.7486e-06 deg peri 337.6019797978733 1.2429e-05 deg M 260.475993060011 1.2757e-05 deg tp 2459695.786864813659 (2022-Apr-26.28686481) 6.4479e-05 TDB period 1791.560416577988 4.91 8.8006e-06 2.409e-08 d yr n .2009421489048226 9.8708e-10 deg/d Q 3.086883265030071 1.0109e-08 au   Orbit Determination Parameters    # obs. used (total)      3209      data-arc span      24468 days (66.99 yr)      first obs. used      1953-10-13      last obs. used      2020-10-09      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .42628      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 12:52:16   Additional Information  Earth MOID = 1.69187 au   Jupiter MOID = 2.23168 au   T_jup = 3.287  [ 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 11.55   n/a E2021B10   diameter diameter 13.107 km 0.182 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   rotation period rot_per 2.943 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Behrend, R. (2005) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Slivan, S.M.; Binzel, R.P.; Boroumand, S.C.; Pan M.W.; et al. (2008) Icarus 195, 226-276.] [Warner, B.D. (2008) Minor Planet Bull. 35, 67-71.] [Oey, J.; Williams, H.; Groom, R.; Pray, D.; Benishek, V. (2017) Minor Planet Bull. 44, 193-199.] [Oey, J.; Groom, R. (2018) Minor Planet Bull. 45, 363-366.] [Pravec, P.; Fatka, P.; Vokrouhlický, D.; Scheirich, P.; et al. (2019) Icarus 333, 429-463.] geometric albedo albedo 0.374   0.048 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   1741 Giclas (1960 BC)          Discovered 1960-Jan-26 by Goethe Link Observatory at Brooklyn Discovered by the Indiana Asteroid Program, Goethe Link Observatory, University of Indiana. This program was conceived and directed by F. K. Edmondson; the plates were blinked and measured astrometrically by B. Potter and, following her retirement, by D. Owings; and the photometry was performed under the direction of T. Gehrels. During the years 1947-1967, in which the plates were exposed, a large number of people participated in various aspects of the program. Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1960 BC = 1953 UY = 1953 VH1 = 1953 XN = 1963 YD  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-18 22:05 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin