The major data sources are the worldwide network of ionosondes, the powerful incoherent scatter radars ( Jicamarca, Arecibo, Millstone Hill, Malvern, St. Santin ), the ISIS and Alouette topside sounders, and in situ instruments on several satellites and rockets.

These were Arecibo ( 1614 ), Aguada ( 1692 ) and Ponce ( 1692 ).

As of 2010, after 10 years of data collection, SETI @ home has listened to that one frequency at every point of over 67 percent of the sky observable from Arecibo with a least 3 scans ( out of the goal of 9 scans ), which covers about 20 percent of the full celestial sphere.

The Joint Space Operations Center, part of United States Strategic Command ( formerly the United States Space Command ), currently tracks more than 8, 500 objects larger than 10 cm in LEO, however a limited Arecibo Observatory study suggested there could be approximately one million objects larger than 2 millimeters, which are too small to be visible from Earth.

* Arecibo Science Advocacy Partnership ( ASAP ), established to protect the future of the Arecibo Observatory in response to NSF funding threats

By the late 90's the team was about to face one of its worst decades since the 50's, From 1999-2008 the team could hardly make it into the semi-finals ( except in 2005 when they reached the finals and lost the title against the Capitanes de Arecibo in four games ), as a consequence the franchise's quality and prestige as well as the fanbase began to decrease.

Arecibo, settled in 1556, was the island's third Spanish settlement, after Caparra ( which later became San Juan ), and San German.

Caves include Cueva Ventana, which overlooks a valley formed by the Rio Grande de Arecibo, and La Cueva del Indio ( Cave of the Indian ), where paintings made by Indians have been sighted.

Still other configurations are possible-the Arecibo Observatory uses a combination of a line feed with an enormous spherical reflector ( as opposed to a more usual parabolic reflector ), to achieve extremely high gains at specific frequencies.

Because of its location ( shielded from radio emissions from the Earth ), it has been proposed as the site of a future giant radio telescope, which would be scooped out of the crater itself, much like the Arecibo radio telescope, but on a vastly larger scale.

The Rio Abajo State Forest ( Bosque Estatal Rio Abajo ) is a forest reserve shared with Arecibo and home to 223 plants and wildlife species including: native Ceiba ( Ceiba pentandra ), Asian teaks ( Tectona spp.

Antonio de los Reyes Correa ( c. 1665 – June 9, 1758 ), also known as El Capitán Correa, was a Puerto Rican soldier who defended the town of Arecibo from a British invasion.

Arecibo is known as the " Villa del Capitan Correa " ( Captain Correa's Village ), an honour bestowed by the people of the town.

Entire works may be based on radio telescope recordings ( Arecibo Trans-Plutonian Transmissions ), the babbling of newborn babies ( Nocturnal Emissions Mouths of Babes ), or sounds recorded through contact microphones on telegraph wires ( e. g. Alan Lamb's Primal Image ).

The University of Puerto Rico at Arecibo ( UPRA ), is located in the north of the island, next to the largest pharmaceutical and biotechnology complex in the Caribbean, the largest radio telescope in the world, and agricultural areas of intense commercial activity.

On October 30, 1950, the Nationalists staged uprisings in the towns of Ponce, Mayagüez, Naranjito, Arecibo, Utuado ( Utuado Uprising ), San Juan ( San Juan Nationalist revolt ), and Jayuya ( Jayuya Uprising ).

* Various other shootouts took place throughout island-including those at Mayagüez, Naranjito, Arecibo, and Ponce, where Antonio Alicea, Jose Miguel Alicea, Francisco Campos ( Albizu Campos's nephew ), Osvaldo Perez Martinez and Ramon Pedrosa Rivera were arrested and accused of the murder of police corporal Aurelio Miranda during the revolt.

The cooperative has offices and warehouses in Ponce ( main offices ), San Juan, Mayagüez, Arecibo, Yauco, San Sebastian, Utuado, Adjuntas, Jayuya and Ciales.

On October 30, the nationalists were ordered to stage uprisings in the towns of Ponce, Mayagüez, Naranjito, Arecibo, Utuado ( Utuado Uprising ), Nationalist attack of San Juan and Jayuya.

On October 30, the Nationalists staged uprisings in the towns of Ponce, Mayagüez, Naranjito, Arecibo, Utuado ( Utuado Uprising ), San Juan ( San Juan Nationalist revolt ), and Jayuya.

The latter extended from a line from Arecibo in the north to Ponce in the south, westward to the sea.

After the playoffs, Diogu signed a one year contract to play for the Capitanes de Arecibo.

At that time, there is still 1: 42 to play, but the game was largely dominated by Arecibo 73-62.

MOP was to be performed by radio antennas associated with the NASA Deep Space Network, as well as the radio telescope of the National Radio Astronomy Observatory at Green Bank, West Virginia and the radio telescope at the Arecibo Observatory in Puerto Rico.

** The asteroid 4769 Castalia is the first asteroid directly imaged by radar from Arecibo.

On 1989-Aug-25 Castalia passed ( within eleven lunar distances ) of Earth, allowing it to be observed with radar from the Arecibo Observatory by Scott Hudson ( Washington State University ) and Steven J. Ostro ( JPL ).

Radar results from the Arecibo Observatory indicated that the comet nucleus was about across, and surrounded by a flurry of pebble-sized particles ejected at a few metres per second.

The Arecibo Observatory, established by Cornell University and the National Science Foundation during Gold's tenure as director of the Center for Radiophysics and Space Research.

) Today, that idea has expanded to encompass the National Optical Astronomy Observatory, the National Radio Astronomy Observatory, the National Solar Observatory, the Gemini Observatory and the Arecibo Observatory, all of which are funded in whole or in part by NSF.

* Arecibo, Puerto Rico, a municipality located by the Atlantic Ocean

Arecibo () is a municipality in the northern midwest coast of Puerto Rico and located by the Atlantic Ocean, north of Utuado and Ciales ; east of Hatillo ; and west of Barceloneta, and Florida.

Arecibo is located on the north coast of the island of Puerto Rico, about 50 miles ( 80 km ) west of San Juan, or approximately a 1-hour trip by car.

Arecibo is also known as La Villa del Capitán Correa ( Captain Correa's Villa ) after the Puerto Rican hero Captain Antonio de los Reyes Correa, who as a member of the Spanish Army defended Arecibo from a British invasion led by rear-admiral William Whetstone on August 5, 1702.

Arecibo was officially founded as a city by the Spanish crown May 1, 1616, under the governorship of Captain Felipe de Beaumont y Navarra, when the King of Spain granted the land ( and the Tainos living there ) to Lope Conchillos.

Originally a residence built by Spanish immigrant Francisco Ulanga, it was later used as a bank, store, city hall of Arecibo, hospital, jail, tribunal, and now the Arecibo Cultural Center.

The people of Arecibo also honored Captain Antonio de los Reyes Correa by including a gold colored belt in their Coat of Arms with the words " Muy Leal ", which means " Very Faithful ", in representation of Correa.

Arecibo does not have a high bandwidth Internet connection, so data must go by postal mail to Berkeley.

In 1992, coached by legendary Julio Toro, the Leones returned to the throne, beating the Capitanes de Arecibo for the title.

* The SETI @ home project uses a sneakernet to overcome bandwidth limitations: data recorded by the radio telescope in Arecibo, Puerto Rico is stored on magnetic tapes which are then shipped to Berkeley, California for processing.

At MIT, Ostro was advised by Gordon Pettengill and studied the radar scattering properties of Saturn's rings and the Galilean satellites using the Arecibo Observatory.

Following the further development of imaging and shape reconstruction techniques by Ostro, Hudson, and Christopher Magri and the upgrade of Arecibo in the mid-1990s, the number of radar observations has increased dramatically.

Another M-type, 216 Kleopatra, was imaged by radar by the Arecibo Observatory in Puerto Rico and has a dog bone-like shape.