
April 13 - First navigation satellite (TRANSIT 1B) launched for US Navy. TRANSIT system was designed to meet Navy's need for accurately locating ballistic missile submarines and other ships.
June 29 - TRANSIT 4A launched, first satellite to carry a nuclear powerplant. The powerplant is a SNAP-3 (Systems for Nuclear Auxiliary Power).
December 19 - TRANSIT system declared operational with the launch of TRANSIT 5A1. However, the satellite fails to make orbit.
October 17 - First VELA satellite launched by U.S. to monitor the ban on space and atmospheric nuclear weapons tests.
November 22 - President Kennedy assasinated in Dallas.
August 2 - U.S. destroyers are attacked by North Vietnamese patrol boats in the Gulf of Tonkin.
October 16 - China announces first sucessful nuclear test.
March 9 (?) - SECOR 3 satellite launched.
March 11 - SECOR 2 satellite launched.
April 3 - SECOR 4 satellite launched.
August 10 - SECOR 5 satellite launched.
March 1 - Soviet Venus III makes first landing on another planet (Venus).
May 19 - OSCAR 9 (TRANSIT by any other name) launched.
June 9 - SECOR 6 satellite launched.
July 1 - France withdraws from NATO.
August 19 - SECOR 7 satellite launched.
October 5 - SECOR 8 satellite launched.
May 31 - TIMATION-I satellite launched.
June 5 - Six Day War begins as Israel pre-emptively strikes Egyptian, Syrian, Jordanian and Iraqi airfields.
June 8 - Israeli forces attack and damage USS Liberty, an electronic reconnaisance ship.
Novemeber(?), (?) - First Soviet navigation satellite, TSYKLON (Cosmos 192) placed in low earth orbit.
January 30 - North Vietnam launches Tet offensive.
July 1 - Non-Proliferation Treaty signed by U.S., U.K. and U.S.S.R.
July 20 - Apollo 11 lands on the moon.
September 30 - TIMATION-II satellite launched.
August - First attempt to get new DNSS system (still packaged as Air Force's 621B system) past the Defense System Acquisition and Review Council (DSARC) fails due to failure to account for views and needs of all services.
October 6 - Egyptian and Syrian forces attack Israel.
October 10 - Vice President Spiro Agnew resigns, pleads no contest to tax evasion charges.
October 25 - U.S. places military forces on alert, fearing that the Soviet Union might intervene in the middle east.
December 17 - Redesigned DNSS system passes DSARC. System includes the best elements of all existing radionavigation technologies. Ultimately, it will be renamed NAVSTAR.
June - Rockwell International selected as first satellite contractor.
July 14 - TIMATION II satellite launched. Renamed NTS-1 (Navigation Technology Satellite 1). Launched into a 7500 nm orbit, it carries the first atomic clocks (two rubidium oscillators) into space.
August 9 - President Nixon resigns, Gerald Ford sworn in as president.
August 17 - Deputy Secretary of Defense declares that tri-service program based on GPS concept be established. Air Force will be program manager.
May 14 - President Ford orders the rescue of the USS Mayaguez from Cambodian waters.
September 21 - US, USSR and 13 other nations sign nuclear non-proliferation treaty.
February 22 - NAVSTAR 1 (I-1, PRN 4) launched, declared operational March 29.
May 13 - NAVSTAR 2 (I-2, PRN 7) launched, declared operational July 14.
September 17 - Private talks between Egypt and Israel begin at Camp David. A timetable for for peace negotiations follows.
October 6 - NAVSTAR 3 (I-3, PRN 6) launched, declared operational November 9.
October 16 - Pope John Paul II is installed.
December 11 - NAVSTAR 4 (I-4, PRN 8) launched, declared operational January 8.
February 17 - Between 200.000 and 300,000 chinese troops invade Vietnam. Various border clashes and Vietnam's "agression" against Cambodia cited as reasons.
November 4 - Iranian militants seize U.S. embassy in Tehran.
December 12 - NATO members (except France & Greece) agree to install 572 intermediate range nuclear missiles by '83.
December 25 - Soviet forces are airlifted into Afganistan after a coup.
February 9 - NAVSTAR 5 (I-5, PRN 5) launched, declared operational February 27.
April 24 - U.S. forces attempt a commando raid to rescue American citizens being held hostage in Iran. Attempt ends in failure after mechanical difficulties and accidents result in loss of several helicopters.
April 26 - NAVSTAR 6 (I-6, PRN 9) launched, declared operational May 16.
November 4 - Ronald Reagan elected president.
March 30 - President Reagan is shot by John Hinckley but recovers.
April - Space shuttle Columbia makes first flight.
October 26 - A Soviet submarine runs aground near a restricted Swedish naval base. Captain blames navigation error, bad weather.
December 18 - NAVSTAR 7 (I-7) lost due to launch failure.
April 2 - Argentine forces invade the Falkland Islands. A British task force leaves England on April 5.
May 4 - Exocet missile launched from an Argentine aircraft strikes and sinks the British frigate "Sheffield".
June 6 - Israeli forces invade Lebanon.
June 14 - Argentine troops in Port Stanley surrender to British forces, Falkland Islands war essentially over.
October 12 - GLONASS 1 (Cosmos 1414) launched.
November 10 - Leonid Brezhnev dies. Will be succeeded by Yuri Andropov.
June 16 - Yuri Andropov elected president of the Presidium of the USSR.
June 28 - U.S. DoD news release announces NAVSTAR security policy changes and revised Standard Positioning Service (SPS) accuracy levels. From then on, SPS would then have 100 meters 95% maximum horizontal error. Precise Positioning Service (PPS) to be limited to military users only. The change was prompted by the results of a 1982 interagency study panel consisting of members of the following organizations:
July 14 - NAVSTAR 8 (I-8, PRN 11) launched, declared operational August 10.
April 4 - GLONASS 2, 3 launched.
September 1 - Korean Air Lines flight 007 crosses into Soviet airspace and is shot down.
October 23 - Car bomb destroys U.S. Marine barracks in Beruit.
October 25 - U.S. forces invade Grenada.
December 29 - GLONASS 4, 5 launched.
April 11 - Konstantin Chernenko elected president of the Supreme Soviet.
May 19 - GLONASS 6, 7 launched.
June 13 - NAVSTAR 9 (I-9, PRN 13) launched, declared operational July 19.
August - Several nations send minesweepers to Red Sea to clear mines that have been damaging ships. "Islamic Jihad" claims responsibility for mines.
September 4 - GLONASS 8, 9 launched.
September 8 - NAVSTAR 10 (I-10, PRN 12) launched, declared operational October 3.
November 4 - Ronald Reagan wins reelection.
May 17 - GLONASS 10, 11 launched.
October 9 - NAVSTAR 11 (I-11, PRN 3) launched, declared operational October 30. Last of the Block I satellites, average life has been about 7 years.
December 24 - GLONASS 12, 13 launched.
September 16 - GLONASS 14, 15, 16 launched.
February - U.S. Coast Guard assumes responsibility as lead agency within Department of Transportation for acting as civilian point of contact for NAVSTAR information.
February 14 - NAVSTAR 14 (II-1, PRN 14) launched, declared operational April 14.
May 31 - GLONASS 34, 35 launched.
June 10 - NAVSTAR 13 (II-2, PRN 2) launched, declared operational June 10.
June 21 - Contract for Navstar Block IIR satellites awarded to GE (General Electric) Astrospace.
August 17 - NAVSTAR 16 (II-3, PRN 16) launched, declared operational August 17.
October 21 - NAVSTAR 19 (II-4, PRN 19) launched, declared operational October 21.
December 11 - NAVSTAR 17 (II-5, PRN 17) launched, declared operational January 11.
March - U.S. DoD activates Selective Availability.
March 25 - NAVSTAR 20 (II-7, PRN 20) launched, declared operational April 19.
May 19 - GLONASS 36, 37, 38 launched.
August 2 - NAVSTAR 21 (II-8, PRN 21) launched, declared operational August 31.
October 10 - NAVSTAR 15 (II-9, PRN 15) launched, declared operational October 20.
November 26 - NAVSTAR 23 (IIA-10, PRN 23) launched, declared operational December 10.
December 8 - GLONASS 39, 40, 41 launched.
July 4 - SA activated at 0400 UT (ref: Notice advisory to NAVSTAR users 121-92282 DTG 011354Z Jul 91.
May 10 - Two men break into Rockwell International facility with an axe, attempt to destroy NAVSTAR SV 33. Men are apparently protesting use of GPS on Trident submarines.
July 7 - NAVSTAR 26 (IIA-14, PRN 26) launched, declared operational July 23.
July 30 - GLONASS 48, 49, 50 launched.
August 10 - TOPEX/Poseidon ocean observation satellite is launched. Satellite carries GPS to provide a reference between the satellite and the center of the earth.
September 9 - NAVSTAR 27 (IIA-15, PRN 27) launched, declared operational September 30.
November 22 - NAVSTAR 32 (IIA-16, PRN 1) launched, declared operational December 11.
December 18 - NAVSTAR 29 (IIA-17, PRN 29) launched, declared operational January 5.
May 27 - DoD and DoT issue a press release announcing a joint study group chartered to investigate management issues of NAVSTAR system.
June 26 - NAVSTAR 39 (IIA-21, PRN 9) launched, declared operational July 20.
July 9 - U.S. Federal Aviation Administration approves use of GPS by civil operators.
August 30 - NAVSTAR 35 (IIA-22, PRN 5) launched, declared operational September 28.
September 24 - GLONASS program officially placed under the auspices of the Russian Military Space Forces.
October 26 - NAVSTAR 34 (IIA-23, PRN 4) launched, declared operational November 29.
December 8 - Secretary of Defense Les Aspin sends a letter to Secretary of Transportation Les Pena that Navstar system has achieved Initial Operational Capacity (IOC).
December 21 - Joint DoD/DoT task force releases issues a press release stating that NAVSTAR system should be jointly managed. Statement is based on increasing civilian use of the system.
April 11 - GLONASS 54, 55, 56 launched.
August 11 - GLONASS 57, 58, 59 launched.
August 30 - NAVSTAR 36 (IIA-24, PRN 6) launched.
July 1 -U.S. Coast Guard's Navigation Center (NAVCEN) is commissioned. Event is announced in a press release issued on June 23.
July 17 - U.S. Air Force issues a press release announcing that NAVSTAR system officially reaches full operational capability.
August 3 - The FAA issued a press release announcing the award of a $475 million dollar contract to Wilcox Electric for the development and installation of a Wide Area Augmentation System.
Ivan A. Getting. "The Global Positioning System"
IEEE Spectrum (December 1993) : 36-47
Higbie, Paul R. and Norman K. Blocker. "Detecting Nuclear Detonations with GPS"
GPS World 5, no. 2 (February 1994) : 48-50
Johnson, Nicolas L. "GLONASS Spacecraft"
GPS World 5, no. 11 (November 1994) : 51-58
Curtis Peebles, Guardians: Strategic Reconnaissance Satellites
(Novato, CA: Presidio, 1987)
Wysocki, Joseph, Lt. Col. "GPS and Selective Availability - The Military
Perspective" GPS World 2, no. 7 (July/August 1991) : 38-44
Gouzhva, Yuri G. and Arvid G. Guevorkyan, Arkady B. Bassevich, Pyotr P. Bogdanov
"High-Precision Time and Frequency Dissemination With Glonass" GPS World
3, no. 7 (July/August) 1992 :40-49
"Newsfront: FAA approves GPS for IFR Operations"
GPS World 4, no. 7 (July 1993) :18
"Newsfront: Protesters invade Rockwell Plant, Damage GPS Satellite"
GPS World 3, no. 6 (June 1992) :12
"Newsfront: Satellite Set Healthy, Launch Planned for Mid-June"
GPS World 3, no. 6 (June 1992) :12
http://www.navcen.uscg.mil/loran/loranff.htm, U.S.C.G. Navigation Center
http://www.navcen.uscg.mil/omega/omegaff.htm, U.S.C.G. Navigation Center
http://www.navcen.uscg.mil/gps/gpsff.htm, U.S.C.G. Navigation Center
Wernher Von Braun and Frederick I. Ordway III, History of Rocketry & Space Travel
(1975)
The 1968 Aerospace Year Book
(Washington, D.C.: Books, Inc., 1968)
