... Up: FITS-Flexible Image Transport System . ... The FITS List Calculator and Bulk Data Processor (FLC) is an IDL program with a graphical user interface developed for processing large groups of Near Infrared Camera and Multi-Object Spectrometer (NICMOS) test data efficiently. ... Figure 1 shows the data structures used to hold lists and images. ... The IDL structures for images are similar to the structures for lists except that the image headers and image data arrays are kept in the structure. ...