+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   7900 Portule (1996 CV8) Classification: Main-belt Asteroid          SPK-ID: 2007900 [ 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 30 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1380965297656676 3.0357e-08   a 2.26703544396142 7.3796e-09 au q 1.953965716294579 7.0432e-08 au i 4.239854631979855 3.7551e-06 deg node 41.5639625867099 5.1461e-05 deg peri 230.8929674993277 5.3734e-05 deg M 293.2877421801115 1.5511e-05 deg tp 2459231.540986670487 (2021-Jan-17.04098667) 5.3901e-05 TDB period 1246.768703675606 3.41 6.0877e-06 1.667e-08 d yr n .2887464201970116 1.4099e-09 deg/d Q 2.580105171628262 8.3987e-09 au   Orbit Determination Parameters    # obs. used (total)      2042      data-arc span      10874 days (29.77 yr)      first obs. used      1990-07-21      last obs. used      2020-04-28      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .4823      source      ORB      producer      Otto Matic      solution date      2020-May-20 02:51:50   Additional Information  Earth MOID = .941177 au   Jupiter MOID = 2.51227 au   T_jup = 3.599  [ 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 14.2   n/a MPO358708   diameter diameter 3.983 km 0.034 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.289   0.012 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   7900 Portule           Discovered 1996 Feb. 14 by U. Munari and M. Tombelli at Cima Ekar. Named for the highest mountain peak in the Asiago tableland, near the Asiago Astrophysical Observatory. The wild mountain range is a trekking favorite for local astronomers. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 19980808/MPCPages.arc Last Updated: 2009-11-17 [ show close-approach data ] Alternate Designations  1996 CV8 = 1990 OZ5  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2020-Aug-15 06:18 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin