1 Wide-field Infrared Survey Explorer (WISE) WSDC Archive Design Version 2.0 4-September-2009 Prepared by: Lin Yan Infrared Processing and Analysis Center California Institute of Technology WSDC D-D0072 Concurred By: Lin Yan, WISE Science Data Center Lead Archive Scientist Roc Cutri, WISE Science Data Center Manager3 Revision History Date Version Author Description 2/26/08 0.1 R.M. Cutri Initial Draft 11/06/08 1.0 Lin Yan Version 1 12/01/08 1.1 Lin Yan Version 1.1 02/24/09 1.2 Lin Yan Version 1.2 03/30/09 1.3 Lin Yan Version 1.3 09/04/2009 2.0 Lin Yan Version 2.04 Table of Contents 1 INTRODUCTION .......................................................................................................7 1.1 Driving Requirements……………………………………………………………….5 2 OVERVIEW............................................................................................................................ 7 2.1 Scope of this document ……………………………………………………………..7 2.2 Applicable Documents…….………………………………………………………...7 3 FUNCTIONALITY OF WISE/IRSA DATA ARCHIVE…………………………………8 4 WISE DATA PRODUCTS SERVED BY IRSA…………………………………………...9 4.1 Data Products for general users…………………………………………………...10 4.2 Data Products for the WISE Science Team……………..………………………...12 5 IMPLEMENTATION……………………………………………………………………..15 5.1 Archive Load Module………………………………………………………………15 5.2 Verification Plan and Maintenance………………………………………………..21 5.3 Development Schedule……….……………………………………………………..21 6 STAFFING PLAN…………………………………………………………………………285 1 INTRODUCTION The Wide-field Infrared Survey Explorer (WISE) will carry out an all sky survey in 3.35, 4.60, 11.56 and 22.24 micron mid-infrared bands. WISE will produce a digital Image Atlas and a Source Catalog that will contain approximately 300 million objects. These products will enable a broad variety of research ranging from studies of solar system asteroids, the closest stars and brown dwarfs to the most luminous, and distant galaxies in the Universe. The WISE science data will serve as an important reference for planning observations and interpreting data obtained with future ground and space-borne observatories such as TMT and JWST. WISE is designed to achieve a minimum point source sensitivity on the ecliptic corresponding to signal-to-noise ratios greater than 5 at flux densities of 0.12, 0.16, 0.85 and 4.0 mJy at 3.4, 4.6, 11 and 22 microns, respectively, in regions of the sky not confused by Milky Way stars and diffuse emission. The expected sensitivities are 0.08, 0.095, 0.76 and 3.7 mJy at the corresponding four bands. WISE is scheduled to launch in December 2009 and will have an in-orbit checkout (IOC) phase of one month, followed by a six month baseline on-orbit data acquisition operations period. A preliminary Source Catalog and Image Atlas constructed from data acquired from the first 50% of the sky surveyed will be released six months after the end of the on-orbit operation phase. The final Catalog and Atlas will be released 17 months after the end of on-orbit operations. The Infrared Processing and Analysis Center (IPAC) at the California Institute of Technology is the WISE Science Data Center (WSDC). The WSDC is responsible for ingesting raw wise science and engineering data and ancillary files from the WISE Mission Operations system, processing those data into the calibrated image products, archiving those products and distributing them to the Scientific and Public Communities. This document describes the plan and implementation of the WSDC ARCHIVE subsystem that is responsible for the storage and distribution of the WISE image and tabular data during and following the WISE mission. 1.1 Driving Requirements Table 1 contains a listing of the requirements derived from the WSDC Functional Requirements Document (WSDC D-R001) that define the design and functionality of the WISE Archive. Table 1 - WISE Archive Driving Requirements ID Requirement L4WSDC-050 The WSDC shall create a copy of the Level 0 science data in a medium appropriate for permanent long-term storage. L4WSDC-051 The WSDC shall make the WISE catalog and image products available to the community via the internet through appropriate web-based tools. L4WSDC-052 As a goal, the WSDC will maintain the data products in a way that6 distribution of the complete WISE Source Catalog to users via portable media would be possible. L4WSDC-053 The WSDC shall make the Image Atlas and Catalog products accessible to the astronomical community in collaboration with the NASA/IPAC Infrared Science Archive (IRSA) to ensure long-term availability beyond the end WISE missions operations and data processing phase, and to insure interoperability with other NASA mission archives. L4WSDC-054 The WSDC shall maintain a complete copy of the WISE science data set and software source code at a secure off-site location during the WISE mission to ensure survivability in case of major catastrophe. L4WSDC-055 After the WISE mission, a copy of the Level 0 science data shall be delivered to the National Space Science Data Center (NSSDC) for permanent archive. L4WSDC-056 The WSDC shall maintain an archive of metadata derived from data processing for the individual science images for the duration of the project for the purpose of analysis and support of image access tools. L4WSDC-057 The WSDC shall provide an online repository for operations products for the life of the project. L4WSDC-058 The MOS shall capture and archive the following data sets received or created by the EOS during the mission: (a) all telemetry data received on the ground, (b) all commands sent to the spacecraft, (c) all sequence products, (d) all data processing logs. L4WSDC-059 Sample WISE images shall be made available for outreach purposes within 1 month of start of normal operations. 2.2.3.1 Data Access L4WSDC-060 The WSDC archive shall provide a web-based interface to enable selection, display and retrieval of any or all