The 2nd column, named ``S/W Trg U.T.'', reports the off-line trigger times (U.T.); since they have been determined during the GRBM 1 s data off-line scan, the fractions of seconds have been omitted.
The following two columns give: the two equatorial coordinates, right ascension () and declination (), J, of the GRB arrival direction. The same direction has been expressed also in terms of the BeppoSAX local direction (), in the two next columns. The ``Tot. Err.'' column, that means ``total error'', is the mean error radius; another column reports the elevation angle on the Earth limb of the burst arrival direction (``Limb. Elev.''). The directions here reported have different origins: whenever a burst has been positioned by other experiments, its derived direction estimate has been used; as usual, when the burst has been detected by more than one experiment (except for the GRBM), only the more precise localization is taken into account; hence, when a burst has been detected by the one of the BeppoSAX WFCs, other possible detections of it, such as BATSE, are ignored. Only for the bursts detected by the only GRBM, and for which the localization procedure has given a unique position, the GRBM direction estimate is reported.
The ``Cat. Nam.'' column reports the GRB catalog sharing the burst, according to the following convention: ``W'' (WFC), ``I'' (IPN), ``A'' (ASM), ``P'' (PCA), ``H'' (HETE-II), ``B'' (BATSE 4B), ``K'' (Kommers' BATSE non-triggered GRB catalog), ``S'' (Stern's BATSE non-triggered GRB catalog), ``G'' (GRBM, only). The ``GRB Id.'' column reports the GRB identification number used in the BATSE (both triggered and non-triggered) catalogs: this is the trigger number in the case of BATSE 4B, or the name burst for the non-triggered catalogs, according to the Kommers' and Stern's catalogs classifications.
The last colums report the total fluence (in units of counts), that is the sum of the total counts over the four GRBM units, and the total peak count rate ( counts/s), summed over the GRBM units, respectively. These values refer to the 40-700 keV energy band; they have been reported only to give a rough idea of the burst intensity.
For some bursts, there is no information about the arrival direction: in these cases, no other positioning experiment detected the burst, except for the GRBM, which has not been able to estimate the direction anyhow (e.g., NTB 960703, UT 07:39:48). In some other cases, although the incoming direction is known from other detections, the BeppoSAX local direction is unkown, owing to the lack of knowledge about spacecraft attitude, as it happened during the period May - July 1997.