[AAVSO-HEN] GCN Report 263.1: Final Swift Observations of GRB 091221

[grb at aavso.org]

The following is a GCN Circular circulated via the AAVSO network.
For an archive and more information on circulars visit:
http://lheawww.gsfc.nasa.gov/docs/gamcosray/legr/bacodine/gcn3_archive.html

GCN_Report 263.1 has been posted:
   http://gcn.gsfc.nasa.gov/reports/report_263_1.pdf
by H.A. Krimm
at CRSST/GSFC/USRA
titled: "Final Swift Observations of GRB 091221"