PDS_VERSION_ID = PDS3 RECORD_TYPE = STREAM INSTRUMENT_HOST_NAME = {"MARS EXPLORATION ROVER 1", "MARS EXPLORATION ROVER 2"} TARGET_NAME = MARS OBJECT = TEXT PUBLICATION_DATE = 2004-07-15 NOTE = "MER Science and Operations Data Products" END_OBJECT = TEXT END MER SCIENCE AND OPERATIONS DATA PRODUCTS The archives of Experiment Data Record (EDR) and Reduced Data Record (RDR) Products associated with the cameras on board the Spirit and Opportunity Mars Exploration Rovers are divided into two categories, with two intended purposes. 1. The Operations Products Generation Subsystem (OPGS) archives for Descent Camera, Panoramic Camera (Pancam), Navigation Camera, Hazard Avoidance Camera, and Microscopic Imager (MI) observations were generated to support mission operations, including terrain visualization using mosaics and elevation maps, and numerous derived products that were produced in time to support planning on a daily basis. These OPGS products are released as a package to provide the user with a sol by sol archive to show what products were used in operations. This package is also expected to be of interest to researchers interested in machine vision and engineering operations. The products are not intended for radiometric or photometric analyses of Pancam or MI data. 2. Science EDR's and RDR's have been produced for Pancam and MI observations and provide the data sets to be used by the community interested in radiometric and photometric analyses. Further, it is expected that additional RDR's will be generated from Pancam and MI data and released to the community to support detailed analyses, including mosaics and terrain elevation maps. We also note that OPGS EDR's have been generated for observations from the Moessbauer and Alpha Particle X-Ray Spectrometers, and the Rock Abrasion Tool. These EDR's were designed to capture all information needed for scientific analyses of the observations. Thus, separate science EDR's are not included in the archives. For Mini-TES there are only science EDR's and RDR's in the archives, i.e., the OPGS package does not include Mini-TES products. Several other data sets are included in the archives, including atmospheric opacities derived from Pancam solar observations, accelerometry data acquired during descent through the atmosphere, and radio observations obtained after landing and used to establish the inertial coordinates of the Spirit and Opportunity landing sites.