+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11804 Zambon (1981 EE13) Classification: Main-belt Asteroid          SPK-ID: 2011804 [ 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 25 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2005135856359051 3.4956e-08   a 2.593864360898939 1.0099e-08 au q 2.073759317241908 9.0943e-08 au i 7.471706866113315 4.1917e-06 deg node 325.1648212565519 3.7853e-05 deg peri 323.5874177331465 3.9752e-05 deg M 142.4300671094112 1.3808e-05 deg tp 2458792.803722179363 (2019-Nov-05.30372218) 5.7083e-05 TDB period 1525.876273360747 4.18 8.9111e-06 2.44e-08 d yr n .235930007094939 1.3778e-09 deg/d Q 3.11396940455597 1.2124e-08 au   Orbit Determination Parameters    # obs. used (total)      1692      data-arc span      14586 days (39.93 yr)      first obs. used      1981-02-12      last obs. used      2021-01-19      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .4407      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 22:58:16   Additional Information  Earth MOID = 1.06275 au   Jupiter MOID = 2.10622 au   T_jup = 3.378  [ 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 14.88   n/a E2021B10   11804 Zambon           Discovered 1981 Mar. 1 by S. J. Bus at Siding Spring. Francesca Zambon (b. 1981) is a researcher at the Istituto di Astrofisica e Planetologia Spaziali (IAPS-Rome) who uses Dawn spacecraft spectral data to map the mineralogy of both Vesta and Ceres. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: MPC batch dated 2017-03-12 Last Updated: 2017-04-19 Alternate Designations  1981 EE13 = 1998 FE119  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jul-25 12:51 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin