urn:nasa:pds:context:telescope:goldstone.dss25_34m 1.0 1.13.0.0 Product_Context 2020-07-19 1.0 Original context file for the 34-m DSS-25 antenna at Goldstone. urn:nasa:pds:radiosci.documentation:dsn.810-005 instrument_to_document This reference is to a PDS collection containing several versions of the NASA Deep Space Network (DSN) Telecommunications Link Design Handbook (Document 810-005). The Handbook is maintained in a modular format to provide interface design data to flight projects using the DSN. Modules are updated as appropriate. Each member product in the PDS collection is the set of modules as they applied at that point in time. Modules include: 001 Handbook Introduction 101 70-m Subnet Telecommunications Interfaces 102 26-m Subnet Telecommunications Interfaces (omitted in 2009 and later versions) 103 34-m HEF Subnet Telecommunications Interfaces 104 34-m BWG Antennas Telecommunications Interfaces 105 Atmospheric and Environmental Effects 106 Solar Corona and Solar Wind Effects 107 Radio Source Catalog 201 Frequency and Channel Assignments 202 34-m and 70-m Doppler 203 Sequential Ranging 205 Command Service 206 Telemetry General Information 207 34-m and 70-m Telemetry Reception 208 Telemetry Data Decoding 209 Open-Loop Radio Science 210 Delta Differrential One-way Ranging 211 Wideband Very Long Baseline Interferometry 214 Pseudonoise and Regenerative Ranging 301 Coverage and Geometry 302 Antenna Positioning 303 Media Calibration 304 Frequency and Timing 305 Test Support 901 Handbook Glossary urn:nasa:pds:context:facility:observatory.dsn telescope_to_facility This context product provides more information on the NASA Deep Space Network as a whole. urn:nasa:pds:context:facility:observatory.goldstone telescope_to_facility This context product provides more information on the Goldstone Deep Space Communications Complex. urn:nasa:pds:context:instrument:dsn.rss telescope_to_instrument This context product provides more information on the commanding, radio tracking, and radio science instrumentation at the telescope. https://www.gdscc.nasa.gov/?page_id=40 An overview of antennas at the Goldstone Deep Space Communication Complex with photographs. Pull down the menu tab at the bottom of the page for more information on DSS-25. 34 243.124637 35.337612 959.634 WGS 84 Ellipsoid DSS-25 is one of three beam waveguide (BWG) antennas constructed between 1992 and 1996 in a cluster at "Apollo Valley" within the Goldstone Deep Space Communications Complex (GDSCC) . These antennas were the first DSN operational antennas to utilize the BWG design that moves environmentally sensitive electronic equipment into an underground pedestal instead of a centrally mounted feed cone structure. The use of the underground pedestal also allows for easier repair, maintenance, and upgrades. DSS-25 operates at both X-band and Ka-band (8 and 34 GHz, respectively) with a 20 kw transmitter at X-band and a 300 W transmitter at Ka-band. DSS-25 can receive right- and left-circular polarization (RCP and LCP, respectively) simultaneously on both bands. Antenna coordinates were converted from Table 5 in module 301 (revision L) of the DSN Telecommunications Link Design Handbook (DSN document 810-005).