Question: The 611th Air and Space Operations Center is based at the military facility in what city?

Context paragraphs:
Air and Space Operations Center: An Air and Space Operations Center (AOC) is a type of command center used by the United States Air Force.  It is the senior agency of the Air Force component commander to provide command and control of air and space operations.

614th Space Intelligence Squadron: The United States Air Force's 614th Space Intelligence Squadron was a unit located at Vandenberg AFB, California.  It was inactivated on 18 June 2007 when the 614th Space Operations Group was redesignated the 614 Air and Space Operations Center.

614th Space Operations Squadron: The 614th Space Operations Squadron (614 SOPS) was a squadron of the United States Air Force (USAF) under Air Force Space Command (AFSPC).  By AFSPC order the unit inactivated 24 May 2007.  Its mission and members moved to the Combat Operations Division of the 614th Air and Space Operations Center (614 AOC).  The inactivation was part of the larger USAF plan to implement the Numbered Air Force-Component structure.  The unit's members became the plankholders of the 614th Air and Space Operations Center and the Joint Space Operations Center.

614th Air and Space Operations Center: The 614th Air and Space Operations Center (614 AOC) is a United States Air Force operations center.

Robert J. Elder, Jr: Lieutenant General Robert J. "Bob" Elder Jr. (born October 15, 1952) is the former Commander, 8th Air Force; Commander, Barksdale Air Force Base, Louisiana; and Commander, Joint Functional Component Command for Space and Global Strike, U.S. Strategic Command, Offutt AFB, Nebraska.  He is now a member of the research faculty at George Mason University.  As one of three active-duty numbered air forces in Air Combat Command, 8th Air Force provides long-range global strike, battle management, surveillance and reconnaissance, intelligence, information operations, tactical air control, and expeditionary heavy construction capabilities to combatant commanders.  The “Mighty Eighth” also conducted computer network operations as the Air Force component to the Joint Task Force for Global Network Operations before that duty was transferred to 24th Air Force, and trains Air and Space Operations Center personnel for worldwide deployment and participation in the multinational Joint Expeditionary Force Experiment.

611th Air and Space Operations Center: The 611th Air and Space Operations Center is the most recent designation of a unit that has served with Alaskan Air Command and Eleventh Air Force as a command and control organization since the late 1940s, based at Joint Base Elmendorf–Richardson.

601st Air Operations Center: The 601 Air Operations Center (AOC) (previously designated as the Air and Space Operations Center) plans, directs, and assesses air operations for the North American Aerospace Defense (NORAD) Command, and the United States Northern Command (NORTHCOM).  The AOC provides aerospace warning and control for NORAD Defensive Counter Air (DCA) activities.  As well as it directs Air Force air capabilities in support of NORTHCOM homeland security and civil support missions.

1st Space Control Squadron: The United States Air Force's 1st Space Control Squadron was a space situational awareness unit last located at Vandenberg Air Force Base, California.  The squadron commanded the United States Space Surveillance Network to detect, track, identify and catalog positional data for all man-made objects in Earth orbit.  The squadron was established in 1989 as the 1st Command and Control Squadron at Cheyenne Mountain Air Force Base, Colorado.  It was inactivated in 2008 and its personnel and equipment were integrated into the 614th Air and Space Operations Center.

Joint Base Elmendorf–Richardson: Joint Base Elmendorf–Richardson (IATA: EDF, ICAO: PAED, FAA LID: EDF) , or J-BER as it is known to most military members, is a United States military facility in Anchorage, the largest city in Alaska.  It is an amalgamation of the United States Air Force's Elmendorf Air Force Base and the United States Army's Fort Richardson, which were merged in 2010.

9th Combat Operations Squadron: The United States Air Force's 9th Combat Operations Squadron (9 COS), previously known as the 9th Space Operations Squadron (9 SOPS), is a Air Force Reserve Command space operations unit located at Vandenberg AFB, California.  9 COS augments the 614th Air and Space Operations Center in operating the Joint Space Operations Center, or JSpOC, performing combat operations, plans, strategy and intelligence assessments that enable the Commander, Joint Functional Component Command for Space (JFCC-SPACE) to command and control space forces by providing worldwide space effects and theater support to combatant commanders.

Supporting paragraphs: 611th Air and Space Operations Center Joint Base Elmendorf–Richardson
Answer: Anchorage