Visitor Information

IPAC comprises two buildings located in the southwest corner of the California Institute of Technology campus.

The main IPAC facility is the David W. Morrisroe Astroscience Laboratory on Wilson Avenue, immediately west of Tournament Park and the Caltech athletic track. It is labeled as Building 22 on this interactive Caltech campus map.

Morrisroe Astrosciences Laboratory
770 South Wilson Avenue
Pasadena, CA 91125
Phone (626) 395-1919

The Spitzer Science Center (SSC), an autonomously managed organization within IPAC, is located in the Keith Spalding Administration Building on the southeast corner of California Boulevard and Wilson Avenue. It is labeled as Building 6 on this interactive Caltech campus map.

Spitzer Science Center
1200 East California Boulevard
Pasadena, CA 91125
Phone (626) 395-8000

Hours: IPAC's normal operating hours are Monday-Friday from 8am-5pm. The buildings are locked between about 5:45pm and 7am on weekdays and all day on weekends. If you need to have access to the buildings during these hours you may request an access card or key for the duration of your visit.

Visitor Information:

For visitors coming to Caltech, Caltech maintains a visitor webpage with information about parking, hotels and more. Please see:

Parking is available in the underground parking structure just south-east of the Keith Spalding building - see the Caltech parking map. Visitors must have a Caltech Parking Permit, which can be obtained from the pay station located at the California St. parking structure, or from your IPAC/SSC/NExScI or other IPAC project. Parking permits, obtained from the projects MUST be dated the date you are parking, undated permits will result in a City of Pasadena parking ticket. Individuals with handicapped access, must also display a parking permit, but can then follow regular handicapped parking regulations. Hours of enforcement are Monday - Friday, 7am to 5 p.m. Red zones, fire lanes, no parking zones, handicapped spaces, and certain posted reserved spaces are enforced 24 hours a day, 7 days a week.

JPL personnel may use their JPL parking permits to park at Caltech. Colored JPL permits that are valid On-Lab are now valid in commuter spaces in all Caltech lots and structures. Qualified JPL personnel that do not have On-Lab parking privileges may obtain a temporary permit from the JPL Parking Office when they have a need to park at Caltech.

Limited parking may be available just south of the Morrisroe Bldg at the entry to Tournament Park. A Caltech parking permit is required to park in this area. No Caltech parking is permitted inside Tournament Park gates or at the extreme far end of the lot.

You may currently park without a permit on the east side of Wilson, north of Tournament Park, for an unlimited time. The west side of Wilson is now a one-hour parking zone from 7AM to 5PM and tickets are given frequently.  Please check signs carefully when parking on the street.  See the Caltech parking website for additional information.

Please do not walk to your car unescorted after dark. While Caltech is located in a safe neighborhood, please call Caltech Security, on any Caltech phone, at 4701, and request an escort to your car. If calling from your cell phone use 626-395-4701.

Phone: For local calls, dial 9 first and then the number. For long distance calls, dial 8 - area code - number.