PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 2018-12-31 NOTE = "Describes the DOCUMENT directory contents." END_OBJECT = TEXT END The document directory contains documentation files, where available, for the data set in this volume. All documentation files will have an accompanying label file to describe content and structure. Label files have the same name as the main document file, with an extension of LBL. Contents of the DOCUMENT subdirectory: DOCINFO.TXT - The file you are reading. MID_ANALYSTS_NBOOK.PDF - MIDAS Analysts Notebook in Adobe PDF format. MID_CALIBRATION.PDF - MIDAS Enhanced Calibration Report in Adobe PDF format. MID_COOR.ASC - The MIDAS co-ordinate systems document in ASCII text format.The purpose of this document is to define the co-ordinate systems to be used for the instrument MIDAS, and to establish the nominal relations between positions in the Unit Reference Frame and the readings of position sensors in the instrument, for both the mechanical dimensions and electrical signals. MID_COOR.PDF - The MIDAS co-ordinate systems document in Adobe PDF format. MID_EAICD.ASC - The MIDAS Experimenter to PSA Interface Control Document (EAICD) in ASCII text format. The purpose of this document is twofold. At first, it provides users of the MIDAS instrument with detailed description of the data products and a description of the methods by which they are generated, including data sources and destinations. Secondly, it is the official interface between the MIDAS instrument team and the archiving authority. MID_EAICD.PDF - The MIDAS Experimenter to PSA Interface Control Document in Adobe PDF format. MID_IMG_CATALOG.TAB - ASCII table providing the list of MIDAS dust sampling images taken during the comet escort phase. MID_REC_IMAGES.PDF - MIDAS Reconstructed Images Report in Adobe PDF format. MID_SCI_USER_GUIDE.PDF - MIDAS Science User Guide in Adobe PDF format. MID_SSRV.ASC - The MIDAS SSRv paper in ASCII text format. This paper describes the MIDAS scientific objectives dedicated to the collection of very small particles and the characterisation of materials by atomic force microscopy. Finally, it presents the technical solutions adopted for this in-augural implementation of the technique on a space mission and the capabilities as confirmed in the post-launch commissioning. MID_SSRV.PDF - The MIDAS SSRv paper in Adobe PDF format. MID_TIP_CATALOG.TAB - ASCII table providing the list of MIDAS tip mapping images taken during the comet escort phase. MID_TIP_IMAGES.PDF - The MIDAS Tip Image Catalogue in Adobe PDF format. MID_USER.ASC - The MIDAS Instrument User Manual in ASCII text format. This document provides all information needed to operate the MIDAS instrument on the ROSETTA spacecraft. Nominal operations as well as special calibrations are described. Known issues with the system are identified and explained in detail. Diagnostics and troubleshooting are explained in a dedicated section. MID_USER.PDF - The MIDAS Instrument User Manual in Adobe PDF format. *.PNG - Images extracted from the PDF documents. CODE/*.PRO - IDL source files of the MIDAS Data Set Browser software.