TITLE: GCN CIRCULAR NUMBER: 9023 SUBJECT: IPN triangulation of GRB090323 DATE: 09/03/23 23:21:41 GMT FROM: Kevin Hurley at UCBerkeley/SSL K. Hurley and J. Goldsten, on behalf of the MESSENGER NS GRB team, A. von Kienlin, G. Lichti, and A. Rau, on behalf of the INTEGRAL SPI-ACS GRB team, and V. Connaughton, M. Briggs, and C. Meegan, on behalf of the Fermi GBM team, report: MESSENGER (GRNS) and INTEGRAL (SPI-ACS) have so far observed GRB090323 (Ohno et al. GCN 9021). We have triangulated this burst to a preliminary annulus centered at RA, Dec = 149.980, +11.232, whose radius is 39.826 +/- 0.286 degrees (3 sigma). This annulus intersects the GBM localization, and the LAT localization lies 0.007 degrees from the center line of this annulus. A map has been posted at ssl.berkeley.edu/ipn3/090323 showing the GBM contours and best-fit position, the IPN annulus, and the LAT best-fit position and error circle. The IPN localization may be improved.