+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   1132 Hollandia (1929 RB1) Classification: Main-belt Asteroid          SPK-ID: 2001132 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: JPL 11 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2778256371059625 4.6438e-08   a 2.683719767857655 1.1531e-08 AU q 1.938113613538737 1.2687e-07 AU i 7.21507568735834 7.2366e-06 deg node 29.90467595394903 4.1378e-05 deg peri 269.7538522284453 4.3518e-05 deg M 22.93043669796044 1.4244e-05 deg tp 2456298.214517177027 (2013-Jan-05.71451718) 6.3315e-05 JED period 1605.847036465093 4.40 1.035e-05 2.834e-08 d yr n .2241807543466021 1.4448e-09 deg/d Q 3.429325922176574 1.4735e-08 AU   Orbit Determination Parameters    # obs. used (total)      1250      data-arc span      30271 days (82.88 yr)      first obs. used      1929-09-13      last obs. used      2012-07-30      planetary ephem.      DE405      SB-pert. ephem.      SB405-CPV-2      condition code      0      fit RMS      .52797      data source      ORB      producer      Otto Matic      solution date      2013-Mar-29 14:19:39   Additional Information  Earth MOID = .939212 AU   T_jup = 3.308  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 10.6 mag n/a PDS3 (MPC 17261)   rotation period rot_per 5.568 h n/a Asteroid Lightcurve DataBase (Rev. 2013-May-01) Published Reference List: [Behrend, R. (2003) Observatoire de Geneve web site, http://obswww.unige.ch/~behrend/page_cou.html] [Sauppe, J.; Torno, S.; Lemke-Oliver, R.; Ditteon, R. (2007) Minor Planet Bul. 34, 119-122.] 1132 Hollandia (1929 RB1)          Discovered 1929-Sep-13 by Van Gent, H. at Johannesburg (LS) Reference: DISCOVERY.DB Last Updated: 2003-08-29 [ show close-approach data ] Alternate Designations  1929 RB1 = 1942 NC = 1946 JA = 1951 WA  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2013-May-26 01:04 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin