+ View the NASA Portal + Center for Near-Earth Object Studies JPL Small-Body Database Browser Search: [ help ]   26761 Stromboli (2033 P-L) Classification: Outer Main-belt Asteroid          SPK-ID: 2026761 [ 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 26 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1654586239464443 3.2101e-08   a 4.002467071708278 3.0637e-08 au q 3.340224377632472 1.264e-07 au i 3.541485542449872 4.6655e-06 deg node 223.2969601800365 6.4076e-05 deg peri 229.2164107515538 6.5821e-05 deg M 102.9477309011621 1.5286e-05 deg tp 2458164.118619004097 (2018-Feb-14.61861900) 0.000122 TDB period 2924.758948282234 8.01 3.3582e-05 9.194e-08 d yr n .1230870667859431 1.4133e-09 deg/d Q 4.664709765784084 3.5706e-08 au   Orbit Determination Parameters    # obs. used (total)      1852      data-arc span      21847 days (59.81 yr)      first obs. used      1960-09-24      last obs. used      2020-07-18      planetary ephem.      DE431      SB-pert. ephem.      SB431-N16      condition code      0      norm. resid. RMS      .51043      source      ORB      producer      Otto Matic      solution date      2020-Nov-13 01:27:08   Additional Information  Earth MOID = 2.3584 au   Jupiter MOID = .607092 au   T_jup = 3.027  [ 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 12.4   n/a MPO474117   diameter diameter 16.835 km 0.271 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)   rotation period rot_per 15.96 h n/a LCDB (Rev. 2020-October); Warner et al., 2009 Published Reference List: [Warner, B.D.; Stephens, R.D.; Coley, D.R. (2017) Minor Planet Bull. 44, 130-137.] geometric albedo albedo 0.075   0.014 urn:nasa:pds:neowise_diameters_albedos::2.0[hildas] (http://adsabs.harvard.edu/abs/2012ApJ...744..197G)   26761 Stromboli           Discovered 1960 Sept. 24 by C. J. van Houten and I. van Houten-Groeneveld on Palomar Schmidt plates taken by T. Gehrels. Stromboli is a volcanic island off northern Sicily, in the Mediterranean Sea. In antiquity the volcano was called "the lighthouse of Mediterrania". The most recent eruptions were in 1951 and 2000. NOTE: some special characters may not display properly (any characters within {} are an attempt to place the proper accent above a character) Reference: 20040713/MPCPages.arc Last Updated: 2004-07-14 [ show close-approach data ] Alternate Designations  2033 P-L = 1999 RW127  [ Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ] 2021-Jan-23 18:32 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin