+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   11695 Mattei (1998 FA74) Classification: Main-belt Asteroid          SPK-ID: 2011695 [ 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 35 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .06823934575935692 3.709e-08   a 2.234616098056496 6.3502e-09 au q 2.082127357501794 8.336e-08 au i 6.519789060720464 4.0437e-06 deg node 24.99279427789862 3.038e-05 deg peri 116.2926222391955 4.0414e-05 deg M 336.2632683488485 2.6756e-05 deg tp 2459280.949107561556 (2021-Mar-07.44910756) 9.0722e-05 TDB period 1220.120745677943 3.34 5.2009e-06 1.424e-08 d yr n .2950527652900214 1.2577e-09 deg/d Q 2.387104838611198 6.7835e-09 au   Orbit Determination Parameters    # obs. used (total)      1692      data-arc span      16160 days (44.24 yr)      first obs. used      1976-10-24      last obs. used      2021-01-21      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .49296      source      ORB      producer      Otto Matic      solution date      2021-Feb-24 02:01:59   Additional Information  Earth MOID = 1.1029 au   Jupiter MOID = 2.60859 au   T_jup = 3.628  [ 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 14.7   n/a MPO502258   11695 Mattei           Discovered 1998 Mar. 22 by the Lowell Observatory Near-Earth Object Search at the Anderson Mesa Station. Janet Akyüz Mattei (b. 1943), a tireless promoter of the observation of variable stars by amateurs, has been the director of the American Association of Variable Star Observers since 1973. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20010109/MPCPages.arc Last Updated: 2009-05-11 Alternate Designations  1998 FA74 = 1976 UL19 = 1996 TH65  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Feb-25 08:42 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin