Imagery Support Data (ISD) Documentation v. 1.1.2 Disclaimer & Copyright Copyright © 2014 DigitalGlobe, Inc. All rights reserved. Access to DigitalGlobe products and sensors is limited to existing re-seller terms and conditions. THIS PUBLICATION IS PROVIDED "AS IS" WITHOUT WARRANTY OF ANY KIND, EITHER EXPRESS OR IMPLIED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT. THIS PUBLICATION COULD INCLUDE TECHNICAL INACCURACIES OR TYPOGRAPHICAL ERRORS. CHANGES ARE PERIODICALLY ADDED TO THE INFORMATION HEREIN; THESE CHANGES WILL BE INCORPORATED IN NEW EDITIONS OF THE PUBLICATION. DIGITALGLOBE MAY MAKE IMPROVEMENTS AND/OR CHANGES TO THE PRODUCT(S) AND/OR THE PROGRAM(S) DESCRIBED IN THIS PUBLICATION AT ANY TIME. DigitalGlobe Imagery Support Data (ISD) Documentation v. 1.1.2 October 2014 2 Contents Disclaimer & Copyright ........................................................................................................................... 2 List of Figures .......................................................................................................................................... 4 List of Tables ........................................................................................................................................... 5 1 Introduction ......................................................................................................................................... 6 2 Image Support Data ............................................................................................................................. 7 2.1 ISD File Description ..................................................................................................................................... 8 2.2 File Layout ................................................................................................................................................... 8 3 General Format and Conventions ..................................................................................................... 10 3.1 General File Format ................................................................................................................................... 10 3.2 PVL Format ................................................................................................................................................ 10 3.3 XML Format ............................................................................................................................................... 10 3.4 Coordinate Conventions ........................................................................................................................... 10 3.4.1 Earth Coordinates (E) ..................................................................................................................... 10 3.4.2 Image Coordinates ......................................................................................................................... 11 3.4.3 Time ............................................................................................................................................... 12 4 Delivery Level Support Data .............................................................................................................. 13 4.1 Delivery Index (README) Contents ........................................................................................................... 13 4.2 Delivery Layout File ................................................................................................................................... 16 4.3 Delivery Geographic Location Map Files ................................................................................................... 16 5 Product Component-Level Support Data .......................................................................................... 21 5.1 Product Component Index (README) ....................................................................................................... 21 6 Image Metadata ................................................................................................................................ 23 6.1 Image Metadata Content .......................................................................................................................... 23 6.1.1 Heights Above Ellipsoid (HAE) ....................................................................................................... 40 6.1.2 Product Level to Product Type Relationships ................................................................................ 41 6.2 Product Browse File .................................................................................................................................. 41 6.3 Tile Map .................................................................................................................................................... 42 6.4 Rational Polynomial Coefficients .............................................................................................................. 46 6.5 Product Component XML File ................................................................................................................... 49 6.6 Manifest File .............................................................................................................................................. 51 6.7 Stereo File ................................................................................................................................................. 52 Appendix A: Example PVL Format ........................................................................................................ 55 Appendix B: Example XML Format ....................................................................................................... 58 Appendix C: Example Tile Map File ...................................................................................................... 61 Glossary ................................................................................................................................................ 62 Index ..................................................................................................................................................... 68 DigitalGlobe Imagery Support Data (ISD) Documentation v. 1.1.2 October 2014 3 List of Figures Figure 2.1 File Layout Diagram ................................................................................................................................................... 9 Figure 3.1 Earth Coordinate System ......................................................................................................................................... 11 Figure 3.2 Image Coordinate System ........................................................................................................................................ 11 Figure 6.1 Sample Product Browse File .................................................................................................................................... 41 Figure 6.2 Stereo Geometry Angles .......................................................................................................................................... 52 DigitalGlobe Imagery Support Data (ISD) Documentation v. 1.1.2 October 2014 4 List of Tables Table 2.1 Image Support Data (ISD) Files Delivered by Product Type ........................................................................................ 7 Table 4.1 Top-Level Delivery Index (README) Contents (ISDF.DEL.README) .......................................................................... 13 Table 4.2 STRIP Shapefile Delivery Names and Attributes ........................................................................................................ 16 Table 4.3 ORDER Shapefile Delivery Names and Attributes ..................................................................................................... 17 Table 4.4 TILE Shapefile Delivery Names and Attributes .......................................................................................................... 18 Table 4.5 PRODUCT Shapefile Delivery Names and Attributes ................................................................................................. 18 Table 4.6 PIXEL Shapefile Delivery Names and Attributes ........................................................................................................ 19 Table 4.7 MOSAIC_CLOSEDPOLYGONS Shapefile Delivery Names and Attributes ................................................................... 19 Table 5.1 Product Component Index (README) Contents ....................................................................................................... 21 Table 6.1 Image Metadata Contents ........................................................................................................................................ 23 Table 6.2 Product Level to Product Type Relationships ............................................................................................................ 41 Table 6.3 Tile Map Contents ..................................................................................................................................................... 42 Table 6.4 RPC Terms ................................................................................................................................................................. 47 Table 6.5 RPC00B Contents ......................................................................................................................................................