GPS SPS Performance Standard

• GPS SPS Performance Standard 4th Edition September 2008 (PDF)

GPS Technical References

GPS Satellite Antenna Panel Patterns

These documents describe technical characteristics of the antenna panels on the GPS Block IIR and Block IIR-M satellites. The satellite manufacturer, Lockheed Martin, compiled the information based on its design specifications and ground test measurements of the antenna panels. This link to LockHeed Martin's GPS Antenna page does not construe in any manner an endorsement of any company products or views.

IS-GPS-200 Navstar GPS Space Segment/Navigation User Interfaces

• Interface Specification (IS-GPS-200H, 28 July 2016)
• Interface Specification (IS-GPS-200H, 24 Sep 2013)
• Interface Specification (IS-GPS-200G, 05 Sep 2012)
• Interface Specification (IS-GPS-200F, 21 Sep 2011)
• Interface Specification (IS-GPS-200E, 08 June 2010)
• Interface Specification (IS-GPS-200D, 07 December 2004)
• Interface Control Document (ICD-GPS-200C, 10 October 1993, with IRN 200C 001-004)

IS-GPS-800 Navstar GPS Space Segment/User Segment L1C Interface

• Interface Specification (IS-GPS-800D, 24 Sep 2013)
• Interface Specification (IS-GPS-800C, 05 Sep 2012)
• Interface Specification (IS-GPS-800B, 21 Sep 2011)
• Interface Specification (IS-GPS-800A, 08 June 2010)
• Interface Specification (IS-GPS-800, 04 Sep 2008)

IS-GPS-705 Navstar GPS Space Segment/User Segment L5 Interface

• Interface Specification (IS-GPS-705D, 24 Sep 2013)
• Interface Specification (IS-GPS-705C, 05 Sep 2012)
• Interface Specification (IS-GPS-705B, 21 Sep 2011)
• Interface Specification (IS-GPS-705A, 08 June 2010)
• Interface Specification (IS-GPS-705, 24 Nov 2003, includes IRN 705 001-003)

Navstar GPS Control Segment to User Support Community Interfaces

• Interface Control Document (ICD-GPS-240A, 12 Jan 2010)
• Interface Control Document (IRN-240A-002, 21 Sep 2016)
• Interface Control Document (ICD-GPS-240B, 22 May 2018)
• Interface Control Document (ICD-GPS-870A, 15 Jun 2011)
• Interface Control Document (ICD-GPS-870B, 24 Sep 2013)
• Interface Control Document (IRN-870B-001, 21 Mar 2017)
• Interface Control Document (ICD-GPS-870C, 22 May 2018)

ICD-GPS-060 GPS User Equipment (Phase III) Interface Control Document for the Precise Time and Interval (PTTI)

• Interface Control Document (ICD-GPS-060B, 12 Feb 2002)
• Interface Control Document (ICD-GPS-060A, 02 Jun 1986)

GPS User Equipment Introduction

• GPS User Equipment Introduction, September 1996