Data type: numb
Related item: '_reflns_number_observed'
Related function: alternate
Enumeration range: 0 -> infinity
The number of reflections in the _refln_ list (not the _diffrn_refln_ list) that are significantly intense, satisfying the criterion specified by _reflns_threshold_expression. It may include Friedel equivalent reflections (i.e. those which are symmetry equivalent under the Laue symmetry but inequivalent under the crystal class) according to the nature of the structure and the procedures used. The special characteristics of the reflections included in the _refln_ list should be given in the item _reflns_special_details.