PAGASA saw a lot of accomplishments during the Marcos regime. In 1973, the Pampanga River Basin Flood Forecasting and Warning Project, a joint undertaking of the PAGASA and the Ministry of Public Works, Transportation and Communications, was inaugurated, and upon recommendations of a survey mission, the Japanese Government provided the equipment and training of personnel for the project. Early in 1974, PAGASA, in cooperation with the Office of Civil Defense, put up a radio station with callsign DZCA. Through a network of automatic stations situated at strategic points along the Pampanga River and its major tributaries, data on the rise and fall of the river levels are sent to the Flood Forecasting Center in the Central Office via existing telemetry system. Impressed with the success of the Flood Forecasting System in the Pampanga River Basin, President Marcos instructed PAGASA to explore the possibility of putting up a similar system in the Agno, Bicol and Cagayan River Basins. The UNESCO-sponsored Regional Seismological Network in Southeast Asia set up an office in the PAGASA Geophysical Observatory in 1974. It sought to standardize the training of personnel and seismological equipment, as well as to improve the accuracy of determining the epicenters of earthquakes in the region. Subsequently, in 1977, a strong motion accelerograph network was put up in Metro Manila. The network was designed to record strong earthquake vibrations in the area. On April 18, 1979, the Science Garden Planetarium was opened to the public. Equipped with a Minolta planetarium projector, it has a seating capacity of 90 people. In June 1981, the Bicol flood forecasting sub-system based on the Pampanga River system was inaugurated. In May of the following year, all three sub-systems (Agno, Bicol and Cagayan) became fully operational. On the same occasion, the Ground Receiving Station for the Geostationary Meteorological Satellite was inaugurated, bringing the satellite meteorology of the Philippines to a giant leap forward.