[Iaude] CBET 5416: PSI-FORNACID METEORS 2024

[quai at eps.harvard.edu]

                                                  Electronic Telegram No. 5416
Central Bureau for Astronomical Telegrams
Mailing address:  Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbatiau at eps.harvard.edu (alternate cbat at iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


PSI-FORNACID METEORS 2024 = M2024-N1
     Further to CBET 5415, D. Segon, D. Vida, and P. Roggemans, Global Meteor
Network, report their independent detection of the new meteor shower with a
radiant in Fornax on 2024 July 4, given the IAU provisional identification
M2024-N1.  Fifty-one meteors (35 recorded by GMN cameras in New Zealand, 15
recorded by GMN cameras in Australia, and 1 recorded by GMN cameras in
Brazil) were imaged within a time interval corresponding to solar longitude
100-104 degrees with a distinct maximum at solar longitude 102.78 deg (equinox
J2000.0).  The meteors radiated from a mean radiant at R.A. = 44.0 +/- 1.6
degrees, Decl. = -38.3 +/- 1.3 degrees, with a geocentric velocity of 51.7 +/-
1.0 km/s.  The sun-centered ecliptic radiant corresponds to lambda = 281.6 +/-
1.8 deg, beta = -51.7 +/- 1.3.  The derived mean orbital elements for this
meteor shower are as follows:  a = 18.3 AU, q = 0.988 +/- 0.008 AU, e = 0.946
+/- 0.056, i = 92.7 +/- 2.0 deg, Peri = 340.7 +/- 3.0 deg, Node = 282.9 +/-
0.8 deg (equinox J2000.0; error margins are the standard deviation).  The
Tisserand parameter relative to Jupiter (0.3) indicates a long-period comet
as the parent body (in this case on a retrograde orbit).  Past GMN
observations yielded sixteen orbits for this shower in 2023 and five orbits in
2022, and indicate an activity period between solar longitudes 97 and 105 deg.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2024 CBAT
2024 July 16                     (CBET 5416)              Daniel W. E. Green