+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   21238 Panarea (1995 WV7) Classification: Main-belt Asteroid          SPK-ID: 2021238 [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] [ 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 .1085049744808074 2.0009e-08   a 2.542139367916739 8.194e-09 au q 2.266304600674277 5.22e-08 au i 11.45103256844781 8.2087e-07 deg node 73.72203488976307 4.704e-06 deg peri 31.26517765462834 6.5208e-06 deg M 41.48565489249277 6.3955e-06 deg tp 2459029.894546035274 (2020-Jun-29.39454604) 2.6117e-05 TDB period 1480.462670445046 4.05 7.1579e-06 1.96e-08 d yr n .243167225480788 1.1757e-09 deg/d Q 2.8179741351592 9.0831e-09 au   Orbit Determination Parameters    # obs. used (total)      2453      data-arc span      10710 days (29.32 yr)      first obs. used      1991-11-13      last obs. used      2021-03-10      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .43353      source      ORB      producer      Otto Matic      solution date      2021-Apr-13 03:42:06   Additional Information  Earth MOID = 1.29038 au   Jupiter MOID = 2.36672 au   T_jup = 3.409  [ 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 13.2   n/a MPO502325   diameter diameter 5.221 km 0.211 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   geometric albedo albedo 0.373   0.072 urn:nasa:pds:neowise_diameters_albedos::2.0[mainbelt] (http://adsabs.harvard.edu/abs/2011ApJ...741...68M)   21238 Panarea           Discovered 1995 Nov. 28 by T. Kobayashi at Oizumi. Panarea is a volcanic island placed in the south of Italy. The V-type spectrum for this object, which is located far from Vesta, suggests that it may be a new example of a basaltic achondrite asteroid having no connection to Vesta. Name suggested by R. P. Binzel, S. Foglia and G. Masi. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20111012/MPCPages.arc Last Updated: 2011-10-13 [ show close-approach data ] Alternate Designations  1995 WV7 = 1991 VE16 = 1992 AL6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Apr-15 22:50 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin