+ 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 2459200.5 (2020-Dec-17.0) TDB Reference: JPL 28 (heliocentric ecliptic J2000)  Element Value Uncertainty (1-sigma)   Units  e .1654171700335283 3.1917e-08   a 4.001736078354474 3.0093e-08 au q 3.339780221052008 1.2523e-07 au i 3.541812077577651 4.5098e-06 deg node 223.2966253676665 6.1946e-05 deg peri 229.1359562158989 6.3611e-05 deg M 127.6700602178087 1.4869e-05 deg tp 2458163.550387969833 (2018-Feb-14.05038797) 0.00011777 TDB period 2923.957736794333 8.01 3.2982e-05 9.03e-08 d yr n .1231207946236201 1.3888e-09 deg/d Q 4.663691935656941 3.507e-08 au   Orbit Determination Parameters    # obs. used (total)      1886      data-arc span      22094 days (60.49 yr)      first obs. used      1960-09-24      last obs. used      2021-03-22      planetary ephem.      DE441      SB-pert. ephem.      SB441-N16      condition code      0      norm. resid. RMS      .50674      source      ORB      producer      Otto Matic      solution date      2021-May-04 03:56:47   Additional Information  Earth MOID = 2.35769 au   Jupiter MOID = .608447 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 12.38   n/a E2021B10   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-May-08 20:51 UT (server date/time)   Site Manager:   Ryan S. Park Webmaster:   Alan B. Chamberlin