+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   1598 Paloque (1950 CA) Classification: Main-belt Asteroid          SPK-ID: 2001598 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 38 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .08071837466720209 3.0061e-08   a 2.332367801724139 6.0467e-09 au q 2.144102863642851 6.9642e-08 au i 7.537188908342971 3.9041e-06 deg node 298.0281067058129 2.7675e-05 deg peri 300.6772390020502 4.0337e-05 deg M 273.7013693527367 3.1463e-05 deg tp 2459708.385645387522 (2022-May-08.88564539) 0.00011405 TDB period 1301.0499876694 3.56 5.0595e-06 1.385e-08 d yr n .2766995914160654 1.076e-09 deg/d Q 2.520632739805426 6.5348e-09 au   Orbit Determination Parameters    # obs. used (total)      2925      data-arc span      26040 days (71.29 yr)      first obs. used      1950-02-11      last obs. used      2021-05-29      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 12:33:29   Additional Information  Earth MOID = 1.14245 au   Jupiter MOID = 2.52324 au   T_jup = 3.554  [ 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 12.81   n/a MPCxxxxx   diameter diameter 9.660 km 0.111 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   rotation period rot_per 5.949 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Ditteon, R.; West, J. (2011) Minor Planet Bull. 38, 214-217.] [Higgins, D.J. (2011) http://www.david-higgins.com/Astronomy/asteroid/lightcurves.htm] geometric albedo albedo 0.244   0.016 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   1598 Paloque (1950 CA)          Discovered 1950-Feb-11 by Boyer, L. at Algiers Reference: DISCOVERY.DB Last Updated: 2003-08-29 Alternate Designations  1950 CA = 1962 RB  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jul-28 03:57 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin