2017 Total Solar Eclipse

Map of US Eclipses from 2017-2052

On 21 August 2017, a total solar eclipse caused the shadow of the moon to traverse the United States from Oregon to South Carolina in just over 90 minutes. Although the ionospheric effects of solar eclipses have been studied for over 50 years, many unanswered questions remain. HamSCI invited amateur radio operators to participate in a large-scale experiment which characterized the ionospheric response to the total solar eclipse and targeted open science questions.

Hundreds of ham radio operators helped out by getting on the air with the Solar Eclipse QSO Party, a contest-like operating event designed to generate data for studying the eclipse. Other HamSCI experiments included making HF Frequency Measurements, recording HF spectra, setting up a Reverse Beacon Network Receiver, participating in VLF/LF receiving experiments, and listening to AM broadcast stations. See our Eclipse Get Involved for more information.

Are you curious about how prior total solar eclipses affected the ionosphere? Read about radio experiments during the 1999 United Kingdom Total Solar Eclipse coordinated by the Rutherford Appleton Laboratory.

 

 

SEQP

Get on the air with the Solar Eclipse QSO Party!

Get Involved!

How can hams and the general public get involved?

The Experiment

Details of the plan to study the 2017 solar eclipse.

 

Join the HamSCI-Eclipse Mailing List

 

The April 8, 2024 HamSCI Total Solar Eclipse QSO Party (SEQP) first results are in! Over 52.7 million radio communications were observed over the continental United States using the PSKReporter, WSPRNet, and Reverse Beacon Network networks. Eclipse effects were observed between 18 to 21 UTC, particularly on the 1.8, 3.5, and 7 MHz bands.

Have you submitted your log? 

HamSCI's Festivals of Eclipse Ionospheric Science events are experiencing a tremendous response from the ham radio community. Only 4 days past the total solar eclipse over North America:

The agenda for the March 22-23, 2024 HamSCI workshop at Case Western Reserve University in Cleveland, Ohio has been published and can be viewed here! The workshop will focus on the theme of Alignments - between the Sun, Moon and Earth; between collegiate amateur radio recreation and STEM curriculum; between data collection and analysis; between professional and citizen science.