Abstract
The orbits of (69230) Hermes and 2002 SY50 are similar and the Earth approaches both of them twice: at the end of October the local orbital minimum distances are smaller than 0.007 AU, and at the end of April the distances are smaller than 0.04 AU. This gives us opportunities to observe the meteors associated with these asteroids. Using the geocentric parameters of the orbital close encounters (the theoretical radiants) and our D N distance function (Valsecchi et al. Mon. Not. R. Astron. Soc. 304 (1999) 743), we searched for meteoroids originated by Hermes and 2002 SY50. A search among 1830 good quality photographic meteors gave negative results: we found no meteor dynamically similar to Hermes or 2002 SY50. In a second search, done in a set of 62150 radio meteors, we applied two methods (M1, M2) and in both cases we found two streams; the streams found with the M1 method had 43 and 30 members, those found with the M2 method had 39 and 14 members. However, these results do not look convincing, due to the small number of common members in the corresponding streams. We therefore conclude that amongst the IAU meteors used in our search there are no compact streams associated with Hermes and 2002 SY50.
Article PDF
Similar content being viewed by others
Avoid common mistakes on your manuscript.
References
Chesley, S. R. and Chodas, P. W.: 2003, 1937 UB (Hermes). MPEC 2003-U04
Gondolatsch, F.: 1937, Astron. Nachr. 264 (6322): 183–184
Hoffmeister, C.: 1948, Meteorströme. Verlag Johann Ambrosius Barth, Leipzig
Jopek T. J. and Froeschlé Cl.: 1997, Astron. Astrophys. 320, 631–641
Jopek T. J., Valsecchi G. B. and Froeschlé Cl.: 2003, Mon. Not. R. Astron. Soc. 344, 665–672
Kronk, G.: 2002, The October Cetids. At URL: http://comets.amsmeteors.org/meteors/showers/october_cetids.html
Lindblad B. A. and Steel D. I.: 1993, in A. Milani, M. Di Martino and A. Cellino (eds.), IAU Symp. 160: Asteroids, Comets, Meteors. Kluwer Acad. Publ., Dordrecht, Holland, pp. 497–501
Margot J. L.: 2004, Urey Prize lecture: Binary Minor Planets AAS Division for Planetary Science Meeting, 36
Margot J. L., Nolan M. C., Negron V., Hine A. A., Campbell D. B., Howell E. S., Benner L. A. M., Ostro S. J., Giorgini J. D. and Marsden B. G.: 2003, 1937 UB (Hermes). IAU Circ. 8227,2, (2003). (Edited by Green, O. W. E.)
NEO Dynamic Site (NEODyS).: 2004, At URL: http://newton.dm.unipi.it/cgi-bin/neodys/neoibo
Obrubov J.V.: 1991, Astronomitscheskij Zhurnal 68, 1063–1073
Plavec, M.: 1954, Bull. Astron. Inst. Czechosl. 5, 38–42
Povenmire, H.: 2004, Lunar Planet. Sci. XXXV, 1069–1069
Schmadel, L. D.: 1999, Dictionary of Minor Planet Names. Fourth Revised and Enlarged Edition, Springer
Sekanina, Z.: 1970, Icarus 13, 459–474
Sekanina, Z.: 1973, Icarus 18, 253–284
Sekanina, Z.: 1976, Icarus 27, 265–321
Skiff, B. A., Young, J., Spahr, T. B.: 2003, 1937 UB (Hermes). MPEC 2003-T74
Southworth, R. B. and Hawkins, G. S.: 1963, Smithson. Contrib. Astrophys. 7, 261–285
Valsecchi, G. B., Jopek, T. J. and Froeschlé Cl.: 1999, Mon. Not. R. Astron. Soc. 304, 743–750
Acknowledgements
TJJ’s work on this paper was partly supported by the KBN Project 2 PO3D 007 22; GBV and TJJ gratefully acknowledge the hospitality of the Observatoire de la Côte d’Azur. We thank P.A. Dybczyński for help with the JPL DE405 ephemeris.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Jopek, T.J., Valsecchi, G.B. & Froeschlé, C. Possible meteoroid streams associated with (69230) Hermes and 2002 SY50 . Earth Moon Planet 95, 5–10 (2004). https://doi.org/10.1007/s11038-005-9028-8
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11038-005-9028-8