Campaign: 2024 Total Solar Eclipse

April 8th, 2024 (CR2282)

This campaign focuses on the solar eclipse that will grace the skies above North America on April 8, 2024. This event offers ideal conditions for eclipse science, unique opportunities for cross-disciplinary collaborations, and an excellent occasion for public engagement. Efforts range from measuring the emission of the solar corona to quantifying the response of Earth’s different atmospheric layers and engaging citizen scientists in tracking the eclipse across the US.

For more information on how to get involved check this announcement. If you have any questions, are interested in participating in the campaign, or notice that something is missing please contact us at whpi_help@hao.ucar.edu.

Path of the 2024 total solar eclipse

Path of 2024 total solar eclipse. 
		Credit: Michael Zeiler, GreatAmericanEclipse.com
Credit: Michael Zeiler, GreatAmericanEclipse.com

Support

The list below aims to serve as a repository for existing or ongoing eclipse activities and foster collaboration across disciplines. The efforts are grouped by activity type. The list is not exhaustive and is being updated as we are made aware of different activities (See the most up-to-date list).

Observatories

MLSO K-Cor NRGF image example. Credit: HAO/NCAR.

Mauna Loa Solar Observatory (MLSO)

Contacts: Joan Burkepile, Ben Berkey

Institution: High Altitude Observatory NSF NCAR

Nominal observing time: 17:30 to ~21:30 UTC

UCoMP instrument:
1) Cross-calibration of Fe XIII with other experiments: [1074 nm-7pts, 1079 nm-7pts, 1074 nm-7pts, 1079 nm-7pts]
2) Waves [1074-3pts 30 second cadence] program to produce plane of sky magnetic field maps, and polarization maps
3) Emission lines: Fe X 637-3pts, Fe XV 706-3pts, Fe XI 789-3pts]
4) Repeat 1 and 3 above 5) S XII at 761 nm; S VIII at 991 nm, Ni XV 670 nm, Ni XV 802 nm 3pts

K-Cor instrument: 15 sec cadence polarization brightness

Solar Orbiter. Credit: ESA/MediaLab.

Solar Orbiter

Contacts: Chris Nelson, Miho Janvier

Institution: ESA Solar Orbiter team

Solar Orbiter will be in a position close to quadrature with the Earth during the April 2024 solar eclipse. Throughout the eclipse, the remote-sensing instruments on-board will be conducting a SOOP called ‘Eruption Watch’, with the primary aim of sampling the plasma of the solar corona out to distances of 3.1 solar radii (including the Sun-Earth line due to the position of Solar Orbiter). For 100 minutes around the totality of the eclipse, the Extreme Ultraviolet Imager (EUI) instrument will use its High-Resolution Imager (HRI) camera to sample the million-degree plasma within the solar corona close to the West limb of the Sun, as observed from Earth.

Artist rendering of Parker Solar Probe approaching the Sun. Credit: NASA/Johns Hopkins APL/Steve Gribben.

Parker Solar Probe

Contacts: Manolis Georgoulis, Sam Badman, Pete Riley

Institution: Johns Hopkins University APL; Center for Astrophysics - Harvard & Smithsonian; Predictive Science Inc.

Magnetic footpoint predictions for Parker Solar Probe's 19th perihelion prior to the eclipse will be issued from March 29-April 2. These predictions will include an identification of a source region that will subsequently be on the solar western limb during the eclipse. Please contact manolis.georgoulis@jhuapl.edu to receive email updates as these predictions are issued - they will be also available at the WHPI PSP 19 campaign. For more information on the successive encounters of the mission, please see the PSP Science Planning.

Artist rendering of STEREO orbiting Sun. Credit: NASA.

Solar TErrestrial RElations Observatory (STEREO)

Contact: Angelos Vourlidas

Institution: Johns Hopkins University APL

STEREO is planning a high telemetry campaign for SECCHI/Cor2 and HI1 instruments. The current plan is:
April 1-6: COR2 2.5-min + HI1 20-min
April 7-9: COR2 pB 5-min program
April 10: COR2 regular synoptic + 20-min HI1
April 11-15: COR2 2.5-min + HI1 20-min

Science experiments

Schematic of Airborne Coronal Emission Surveyor (ACES). Credit: Center for 
	Astrophysics - Harvard & Smithsonian.

Airborne Coronal Emission Surveyor (ACES)

Contact: Jenna Samra

Institution: Center for Astrophysics - Harvard & Smithsonian

The Airborne Coronal Emission Surveyor (ACES) is a new imaging Fourier transform spectrometer that will explore the large-scale coronal infrared (IR) emission spectrum during the April 8, 2024 total solar eclipse. ACES will fly at an altitude of 45,000 feet altitude on the NSF/NCAR Gulfstream V, above most of the IR-absorbing atmosphere. During the six-minute total eclipse, ACES will map emission line intensity in the 1–4 μm wavelength region over a 2000 x 100 arcsecond field of view, searching for lines that may be viable candidates for measuring the coronal magnetic field and plasma diagnostics at large solar radii.

The Coronal HElium Emission Spectrograph Experiment (CHEESE)

Contact: Momchil Molnar

Institution: High Altitude Observatory NSF NCAR

The Coronal HElium Emission Spectrograph Experiment (CHEESE) is going to measure the near infrared spectrum of the solar corona during the eclipse on April 8th. CHEESE is going to observe the spectral range between the Fe XIII 1074/1079 nm lines and the He I 1083 nm line with spectral resolution of R~10,000. The main goal of the experiment is to constrain the abundance of neutral helium in the solar corona, which is an important ingredient for Hanle effect-based coronal magnetometry.

FeSun - Infrared Fe XIII imaging experiment

Contact: Alin Paraschiv

Institution: National Solar Observatory; High Altitude Observatory

The FeSun experiment will observe the infrared Fe XIII corona during totality. The joint HAO/NSO observation will mosaic the entire disc via filtergram snapshots of the inner corona. Our small experiment can tentatively sample the Fe XIII lines up to heights of 1.3 Sun radius. We aim to capture both lines near-simultaneously at as many distinct spacial locations to gather a statistically significant data-point sample. An extended objective is to separate the samples into distinct AR, CH, or Streamer distributions. The experiment will further constrain the theoretical interpretation of the Fe XIII lines and determine the local plasma density.

Observational campaign of total solar eclipse on April 8, 2024 (ECLIPSE2024)

Contact: Lucia Abbo

Institution: INAF - Astrophysical Observatory of Turin

The scientific observational campaign at Torreon (Mexico) will bring three instruments: one telescope for observations of the K-solar corona (E-KPol); two telescope for spectro-polarimetric observations of Fe XIV at 530.3 nm and He I D3 at 587.6 nm coronal lines (E-CorMag and Strato-CorMag). The spectro-polarimetry of Fe XIV and He I D3 lines offers the unique opportunity to study the magnetic topology.

Coronacast

Contact: Daniel Welling

Institution: Climate and Space Sciences and Engineering, University of Michigan

A student group of Michigan and Texas students organizes and performs coronal emission forecasting for multiple instruments for the eclipse using the Space Weather Modeling Framework's solar corona models. The predictions will be live broadcasted and continuously released to the public the week leading to the eclipse.

Logo for the Nationwide Eclipse Ballooning Project.

Nationwide Eclipse Ballooning Project

Contact: Angela Des Jardins, Nationwide Eclipse Ballooning Project

Institution: Montana State University

NEBP, a NASA Science Activation project, involves 1,000 students and mentors from across the country in a NASA-mission-like adventure in data acquisition and analysis through scientific ballooning. Engineering teams use innovative larger balloon systems to live stream video, observe in situ perturbations in atmospheric phenomena, and conduct individually designed experiments. Atmospheric Science teams fly weather sensors every hour for 24 hours prior to eclipses and 6 hours after to provide data that enables analysis of the atmospheric response to the cold, dark shadow of eclipses.

ARIES eclipse imaging experiment

Contact: S. Krishna Prasad

Institution: Aryabhatta Research Institute of Observational Sciences

ARIES plans to carry a single refracting Vixen telescope to image the Sun using a narrowband green line filter (Fe XIV 530.3 nm). The goal is to study the high-frequency dynamics within the inner corona.

Surface Magnetic Assessment in Real Time (SMART) Ground-based Magnetometer Network

Contact: Peter Chi

Institution: Department of Earth, Planetary, and Space Sciences, UCLA

The SMART project is coordinating an geomagnetic field observation campaign for the April 8, 2024 total solar eclipse with partner networks in the continental United States and high schools along the path of totality.

Citizen Science projects

Logo for the Solar Eclipse QSO Party.

‘Listening Party’ for Amateur Radio Operators

Contact: Nathaniel Frissell

Institution: University of Scranton

Hundreds of amateur (ham) radio operators will be using their stations to contact one another over a 10 hour period: Before, during and after the eclipse. Their transmissions will be recorded by automated ’spotting’ networks, eventually totaling millions of data records. Those records, upon analysis, should reveal eclipse induced effects on the bottom side of the ionosphere, such as changes in height and in its ability to refract radio signals.

Grasshopper silhouetted against the Sun.

Eclipse Soundscapes

Contact: Henry Winter

Institution: ARISA Lab

Will animals and insects respond when the eclipse darkens the skies on April 8, 2024? This accessible and inclusive participatory science project invites the public to experience the eclipse in a multisensory manner by collecting audio data and sensory observations.

Numerical simulations

Prediction of the ionosphere during solar eclipses using SUPIM-INPE

Contact: Manuel Bravo

Institution: Centro de Instrumentación Científica, Universidad Adventista de Chile

After the good results obtained by the SUPIM-INPE model simulations of the ionospheric response to the total solar eclipses of July 2, 2019 and December 14, 2020 over South America, we have made a prediction of the eclipse effects of April 8, 2024 on the ionosphere. We provide simulation results that can be directly compared to future measurements obtained at North American ionospheric stations during this eclipse. In particular, we have evaluated the predicted ionospheric response for Millstone Hill (USA), Boulder (USA), Ramey (Puerto Rico), and Mexart (Mexico) stations. Additionally, we can provide predictions for any other geographic point if necessary. We encourage the scientific community to compare their measurements with our simulations.