Arecibo Call for Ionospheric Modification (HF facility) Proposals:

Thursday, September 28, 2017 Deadline

Dear Colleagues,

The Arecibo Observatory invites you to submit proposals for the use of the HF facility during 2018. HF experiments at Arecibo are scheduled by demand in periods of 5-7 days around new moon. Proposals should specify the associated diagnostics required: the incoherent scatter radar (ISR), active and passive optical instruments and others.

Proposals should be submitted online using the HF Proposal Form by September 28, 2017 (21:00 UTC). See also the information about observing proposals and policies.

Technical information about our facilities and instrumentation as well as the contacts for specific support are found below. For any further information not addressed in this communication, contact Eliana Nossa (

Best regards,

Eliana Nossa

Please email any questions about this call for proposals to Eliana Nossa (

Arecibo Observatory | HC 3 Box 53995 | Arecibo, PR 00612
"The Arecibo Observatory is sponsored by the National Science Foundation. Any opinions, findings and conclusions or recommendations expressed in this publication are those of the author(s) and do not necessarily reflect the views of the National Science Foundation."
This website is managed by Dr Robert Minchin. Please address questions to him at