Page 28 - hisdeSAT annual report 2015
P. 28

HISDE S AT  ANNU AL REPOR T 2 015










             TERRASAR-X/PAZ
             RADAR SATELLITE CONSTELLATION


                                       In 2012, Hisdesat entered into an agreement with  ting applications and also
                                       Airbus Defence and Space (formerly Astrium GEO)  provide services for new
                                       for the creation of a constellation of radar satellites,  ones.
                                       by coordinating the resources that PAZ, TerraSAR-
                                       X and TanDEM-X make available to clients. Some of   The satellites will use the
                                       the advantages of this constellation are:    same orbit and will have iden-
                                                                                    tical scan width and imaging
                                           —  Significantly reduced revisit time (to between  modes, making them com-
                                           4 and 7 days), of importance to interferome-  pletely interchangeble for the
                                           tric processes and applications with strict time  end user. Coordination bet-
                                           requirements                             ween the ground segments
                                                                                    and their interconnection
                                           —  Improved capacity for surveillance applica-
                                                                                    with direct access stations
                                           tions and map generation                 (DAS) will allow users to re-

                                           —  A simplified client request process via a single   ceive and process data inter-
                                           portal and a single catalogue            changeably from the three
                                                                                    satellites and obtain equiva-
                                       The  creation  of  this  constellation  caters  for  lent final products.
                                       growing industry demand for Earth observation
                                       based on radar technology, and coordinates pri-  This new constellation will
                                       vate missions, thereby bringing products to the   provide benefits for nume-
                                       market that fully meet the expectations of exis-  rous activities that require

              PAZ, TerraSAR-X


             y TanDEM-X will


                  use the same


                   orbit and will


                  have identical


              scanning width


                        and image


                          aquisition


                                modes







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