+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   357116 Attivissimo (2001 WH) Classification: Main-belt Asteroid          SPK-ID: 2357116 [ 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 6 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .2351551567010766 7.3432e-08   a 2.974442503972145 2.5896e-08 au q 2.274987010852232 2.2598e-07 au i 6.767684570457605 9.9924e-06 deg node 202.4880471663047 4.3296e-05 deg peri 217.3085251904249 5.2425e-05 deg M 224.8489427446755 2.7162e-05 deg tp 2459703.934624164700 (2022-May-04.43462416) 0.00014866 TDB period 1873.729069102902 5.13 2.447e-05 6.7e-08 d yr n .1921302315987229 2.5091e-09 deg/d Q 3.673897997092057 3.1986e-08 au   Orbit Determination Parameters    # obs. used (total)      230      data-arc span      6404 days (17.53 yr)      first obs. used      2001-10-25      last obs. used      2019-05-08      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .6478      source      ORB      producer      Otto Matic      solution date      2019-Jul-13 15:47:51   Additional Information  Earth MOID = 1.29156 au   Jupiter MOID = 1.71149 au   T_jup = 3.209  [ 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 MPO476670   357116 Attivissimo           Discovered 2001 Nov. 16 at Cavezzo. Paolo Attivissimo (b. 1963) is an Italian writer, blogger and journalist. He is the author of eleven books on computers, the author of the Disinformatico.info blog, and a consultant and speaker for Swiss and Italian TV on information and space technology, conspiracism, hoaxes and misinformation in the media. 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 2013-11-17 Last Updated: 2014-11-10 [ show close-approach data ] [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-05 20:04 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin