PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM OBJECT = TEXT PUBLICATION_DATE = 2017-03-09 NOTE = "Description of the DOCUMENT directory contents." END_OBJECT = TEXT END The DOCUMENT directory contains copies of documents that are necessary or useful for users to understand the archive data set. These documents are orgainized in the subdirectories listed below. CERES_COORD_SYS This document describes updates to the Ceres coordinate system made as a result of observation made by the NASA Dawn mission. ENVI_TUTORIAL VIR ENVI Tutorial document. This document describes the procedure to manually open Dawn VIR .QUB files using ENVI. Please use the ASCII version of this document (DAWNVIR_ENVI_TUTORIAL_V3.ASC) when copying and pasting lines from the IDL routine included in this document. ISIS_TUTORIAL VIR ISIS Tutorial document. The document describes the procedure for reading and processing VIR data qubes using ISIS. SCIENCE_PLAN The Dawn Science Plan document. This document provides a description of the planned Dawn observations throughout the mission from launch through Vesta. It is provided as a source of information on the intent of the observations made by the instrument teams at Vesta. Note that not all of the planned observations actually occurred due to a variety of instrument resets and spacecraft safings. SIS The Dawn VIR Software Interface Specification (SIS). This document describes the contents and types of archive volumes belonging to all of the VIR NASA level 1 (CODMAC levels 2 and 3) data sets. This includes detailed descriptions of the data formats to allow users to read the data products. VIR_CALIBRATION The Dawn VIR Calibration document describes the algorithms used to calibrate VIR raw (EDR) data in physical units (RDR, spectral radiance), in order to give the final user a detailed view of the method used to remove instrumental effects on the data. A discussion of known data and calibration issues which may affect data quality is included in the data set catalog file which is located in the CATALOG directory of this volume. VIR_LAMP_DESCRIPTION This document describes the properties of the Dawn VIR internal calibration lamp. All material in this document has been extracted from [MELCHIORRIETAL2003].