BeppoSAX GRB Alert: GRB991217 On Dec.17, 04:12:20 UT a faint X-ray rich event with a marginal detection in GRBM (GRB991217) was detected by BeppoSAX WFC2. Preliminary coordinates from WFC are: R.A.(2000)= 345.867 DEC (2000)= 0.228 with an error radius of about 6'. The position error is the standard statistics+systematics, but the satellite was in testing mode, so the estimate is very preliminary. For the same technical reason an NFI observation is not being planned. Giangiacomo Gandolfi on behalf of BeppoSAX Mission Scientist #----------------------------------#------------------------------------------# Luigi Piro | E-mail: Istituto Astrofisica Spaziale | piro@ias.rm.cnr.it C.N.R. | SAX program: saxsci@ias.rm.cnr.it Via Fosso del Cavaliere | phone: -39-06-4993-4007 I-00133 Roma | phone BeppoSAX center: -39-06-4079-6393 Italy | fax(CNR) : -39-06-20660188 #__________________________________#___________________________________________#