+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   100553 Dariofo (1997 GD) Classification: Mars-crossing Asteroid          SPK-ID: 2100553 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ show orbit diagram ] Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB Reference: JPL 22 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1631182152934266 3.876e-08   a 1.784578955079808 4.227e-09 au q 1.493481620876982 6.9807e-08 au i 9.804315392334654 3.819e-06 deg node 33.08821348791771 2.035e-05 deg peri 165.2864587234255 2.2735e-05 deg M 249.4101913461691 1.1792e-05 deg tp 2459267.994393248246 (2021-Feb-22.49439325) 2.8933e-05 TDB period 870.7672320041821 2.38 3.0937e-06 8.47e-09 d yr n .4134285108219035 1.4689e-09 deg/d Q 2.075676289282634 4.9164e-09 au   Orbit Determination Parameters    # obs. used (total)      919      data-arc span      8307 days (22.74 yr)      first obs. used      1997-04-08      last obs. used      2020-01-05      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .59202      source      ORB      producer      Otto Matic      solution date      2020-Jan-29 14:57:33   Additional Information  Earth MOID = .492212 au   Jupiter MOID = 2.88084 au   T_jup = 4.054  [ show covariance matrix ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] Physical Parameter Table Parameter Symbol Value Units Sigma Reference Notes absolute magnitude H 16.6   n/a MPO493565   100553 Dariofo           Discovered 1997 Apr. 2 by V. Goretti at Pianoro. Dario Fo (b. 1926) is an Italian satirist, playwright, theatre director, actor, composer and recipient of the 1997 Nobel Prize in Literature. His dramatic work employs comedic methods of the ancient Italian "commedia dell'arte", a theatrical style popular with the working classes. Name suggested by Rodolfo Calanca. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20121228/MPCPages.arc Last Updated: 2013-01-02 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Oct-27 10:55 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin