Paid Observations


Use of the Arecibo is available on a competitive basis, equal to all the world's scientists, to conduct research in astronomy, planetary sciences and atmospheric sciences. Observing time is granted based on the most promising research as ascertained by peer review of proposals. Now, the Observatory wants to open its doors to an even wider community of scientists, researchers and educators.


The Arecibo Observatory (AO) is a multi-disciplinary facility that performs cutting-edge research in the areas of radio astronomy, atmospheric sciences and planetary science. AO is the largest and most sensitive radar facility in the World and houses unique capabilities in the areas of near earth object characterization, space weather events and the study of gravitational waves, among others. It also houses the Angel Ramos Foundation Science and Visitor Center, which hosts about 90,000 students and tourists annually, and is a key economic and STEM education driver in Puerto Rico. The facility is currently owned by the National Science Foundation and managed by University of Central Florida, Yang Enterprises Inc and UMET through a cooperative support agreement.

The AO Administration welcomes partnerships with institutions who wish to conduct research or educational activities and have not bad the opportunity to use the facilities.

Time Allocation
Paid Time proposals will not be ranked by scientific merit and the time allocation procedure will be different than the Non-Paid observations. Paid time observations will have a guaranteed allotment but always subject to practical constraints.

Contact Us
Inquiries regarding the terms and conditions for Paid Observations can be made to AO Administration's office using the information request form. Click on the 'Price your Project' link so you fill out relevant information about your interests. After submission, our staff will contact you promptly.

Radio Astronomy

Over 12 different receivers including:
X-band, C-band, C-wide (5.9-8.1GHz, due position survey early 2020), S-high, S-wide, L-wide, ALFA, 430, 327

Backend Systems: Interim Correlator, WAPP correlator, Mock spectrometer., PUPPI- Puerto Rico Ultimate Pulsar Processing Instrument, GALFA spectrometer, RI - Radar Interface, Portable Fast Sampler, Ecotek Data Acquisition,2 x USRP N210, Mk 5A recorder, 2 x Mk 5C recorder., Mark6 recorder, VLBA 4 data acquisition rack, 4 x RDBE VLBI backends (2 pairs, one for each Mk 5C)

Atmospheric Sciences studies

Use of the 430MHz Incoherent Scatter Radar
Use of the Ionospheric heater for research of plasma turbulence
Optics supports, including the use of the onsite LIDAR and remote optic facilities around the island
Access to long-term space weather datasets

Planetary Radar

Observing time and data analysis while using the most powerful planetary radar in the world
2380 MHz (S band) transmitter with up to 1 MW of power and beam size of ~2 arcmin, and a corresponding S-band (narrow) 12.6 cm receiver (2.33 - 2.43GHz); 1 MW output power)