+ View the NASA Portal + Near-Earth Object (NEO) Program Search JPL JPL Small-Body Database Browser Search: [ help ]   9683 Rambaldo (4099 P-L) Classification: Main-belt Asteroid          SPK-ID: 2009683 [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] [ show orbit diagram ] Orbital Elements at Epoch 2456400.5 (2013-Apr-18.0) TDB Reference: MPO250306 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e 0.1546352 n/a   a 2.2756150 n/a AU q 1.9237248 n/a AU i 5.18738 n/a deg node 210.84102 n/a deg peri 193.71208 n/a deg M 80.02367 n/a deg tp 2456121.7835623 (2012-Jul-13.28356230) n/a JED period 1253.8529857 3.43 n/a n/a d yr n 0.28711500 n/a deg/d Q 2.6275052 n/a AU   Orbit Determination Parameters    # obs. used (total)      496      first obs. used      1960-??-??      last obs. used      2013-01-21      # oppositions      16      planetary ephem.      DE403      condition code      0      fit RMS      0.57      data source      MPC:mpn      producer      MPCLINUX   Additional Information  T_jup = 3.588  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 15.2 mag n/a PDS3 (MPC 32909)   9683 Rambaldo           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Alfred E. Rambaldo (1879-1911), born on the island of Java, did extensive research on the upper layers of the atmosphere. He was also a great promoter of aviation, especially balloons/airships in the Netherlands and in the Dutch East Indies, where he died during a balloon accident. The name was suggested by W. A. Fröger. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010309/MPCPages.arc Last Updated: 2009-05-11 Alternate Designations  4099 P-L = 1991 TV13 = 1993 FR22  [ Ephemeris | Orbit Diagram | Orbital Elements | Physical Parameters | Discovery Circumstances ] 2013-Jun-20 02:32 UT (server date/time)   Site Manager:   Donald K. Yeomans Webmaster:   Alan B. Chamberlin