+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   7258 Pettarin (1994 EF) Classification: Main-belt Asteroid          SPK-ID: 2007258 [ 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 31 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .099754182242396 1.1851e-08   a 2.603344245228417 1.2888e-08 au q 2.343649768950208 2.8173e-08 au i 12.13515728146104 1.2513e-06 deg node 301.9603816802597 2.6505e-06 deg peri 212.590324147224 2.4087e-05 deg M 102.2738646098423 2.0719e-05 deg tp 2458764.628982559439 (2019-Oct-08.12898256) 8.798e-05 TDB period 1534.248919576872 4.20 1.1393e-05 3.119e-08 d yr n .2346424986235505 1.7424e-09 deg/d Q 2.863038721506625 1.4174e-08 au   Orbit Determination Parameters    # obs. used (total)      1506      data-arc span      11161 days (30.56 yr)      first obs. used      1989-12-30      last obs. used      2020-07-21      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50663      source      ORB      producer      Otto Matic      solution date      2021-Apr-12 19:32:50   Additional Information  Earth MOID = 1.36398 au   Jupiter MOID = 2.19787 au   T_jup = 3.375  [ 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 13.86   n/a E2021B10   diameter diameter 6.593 km 1.777 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   geometric albedo albedo 0.148   0.101 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2012ApJ...759L...8M)   7258 Pettarin           Discovered 1994 Mar. 5 at Santa Lucia Stroncone. Enrico Pettarin (b. 1970), Italian amateur astronomer, has been for many years the "factotum" at the CCAF (Circolo Culturale Astronomico di Farra d´Isonzo) observatory in Farra d´Isonzo. He likes software, maintains the telescopes and has participated in almost all of the more than 200 new discoveries at this site. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 19991123/MPCPages.arc Last Updated: 2010-06-11 Alternate Designations  1994 EF = 1989 YB2  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Apr-16 03:59 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin