+ 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 ] [ show orbit diagram ] Orbital Elements at Epoch 2459396.5 (2021-Jul-01.0) TDB Reference: JPL 37 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1084833439740823 1.7877e-08   a 2.541679507962609 7.7765e-09 au q 2.265949615628425 4.5733e-08 au i 11.45135314405005 8.171e-07 deg node 73.71712325809634 4.6951e-06 deg peri 31.1745590576559 6.4372e-06 deg M 89.24457799353522 5.9829e-06 deg tp 2459029.590507638717 (2020-Jun-29.09050764) 2.436e-05 TDB period 1480.060976473328 4.05 6.7925e-06 1.86e-08 d yr n .2432332219567086 1.1163e-09 deg/d Q 2.817409400296794 8.6201e-09 au   Orbit Determination Parameters    # obs. used (total)      2806      data-arc span      10817 days (29.62 yr)      first obs. used      1991-11-13      last obs. used      2021-06-25      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .41391      source      ORB      producer      Otto Matic      solution date      2021-Jul-08 05:06:24   Additional Information  Earth MOID = 1.29035 au   Jupiter MOID = 2.36753 au   T_jup = 3.409  [ 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 13.21   n/a MPCxxxxx   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 Alternate Designations  1995 WV7 = 1991 VE16 = 1992 AL6  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances ] 2021-Jul-29 17:59 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin