Mission Details

Picture of NEEMO 4
September 23, 2002 to September 27, 2002
Orgainizational lead or sponsor
Lead Person
No information in the database.
Contact Person
No information in the database.
The fourth NASA Extreme Environment Mission Operations (NEEMO) mission began on September 23, 2002 on board the underwater research vessel Aquarius. NEEMO missions are a cooperative project between NASA, the National Oceanic and Atmospheric Administration (NOAA), the National Undersea Research Center (NURC) and the University of North Carolina at Wilmington (UNCW). The NEEMO 4 crew consisted of two UNCW live-aboard operations specialists, James Talacek and Ryan Snow, and four aquanaut specialists. These four specialists were mission commander Scott Kelly, Rex Walheim, Paul Hill, and Jessica Meir. During their 5-day mission, the aquanaut crew lived underwater using the Aquarius undersea laboratory as a space analogue for working and training under environmental conditions that are surprisingly similar to the challenging conditions of outer space.
Among the many mission objectives planned for the NEEMO 4 crew were coral science, Waterlab construction, a communication task, and site-map tagging. The coral science experiment involved setting up transect lines perpendicular to excursion lines and measuring the size and health of the coral. Each coral was photo-documented and the results compiled and given to NOAA.

Five separate dives were performed to construct the Waterlab. During the first exercise, the aquanauts worked as a team to locate and transport pieces of the Waterlab and required tools, which were located in another area. They also constructed the base unit of the structure, which was in the form of a stack built of PVC. For the second dive, the buddy pair constructed the truss section. During the third dive, the buddy team constructed the antenna and connected cables. The fourth dive included construction of the solar array and cable connections. During the final dive, the crew disassembled the Waterlab.

Aquanauts also tested the power and clarity of the underwater communications system by venturing away from the habitat, measuring their distance traveled and provided voice tests at given intervals. The aquanaut buddy pairs transit to many areas on a certain site and provide voice checks, which are documented and used to characterize the useful range of the communications system.

NASA tags were deployed along the excursion lines that systematically identify each location. These tags will eventually become the basis for an entire grid network of the Aquarius site and are used in conjunction with the Communication Task.
No information in the database.
Lessons Learned
No information in the database.

Cross-References in the Database

NASA Extreme Environment Mission Operations (NEEMO)
No information in the Database.
Exploration Planning and Opercations Center (ExPOC)
No information in the Database.

Alphabetical list of all missions.
Gantt Chart of all missions.