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Mysterious Radio Signals Focus of New Solar Mission

Discussion in 'Amateur Radio News' started by AE0TO, Jul 9, 2024 at 2:46 PM.

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  1. AE0TO

    AE0TO XML Subscriber QRZ Page

    Huh² Better Late Than Never...


    CURIE will investigate where solar radio waves originate in coronal mass ejections, like this one seen in 304- and 171-angstrom wavelengths by NASA’s Solar Dynamics Observatory. (Credit: NASA/Goddard Space Flight Center)
    SPACE (KXAN) — Radio signals are coming from somewhere within our sun and NASA wants to find out from where. On July 9, the space administration will launch the first mission designed to locate these signals: CURIE.

    The CubeSat Radio Interferometry Experiment (CURIE) will use two small cube satellites to locate the source of these radio signals, emitted during solar storms, solar flares and coronal mass ejections (CME).

    Understanding more about these forms of space weather is extremely important. Storms on the sun can impact technology on Earth, including our communication networks.

    According to NASA, scientists first detected these radio signals decades ago. While they know that they occur during solar storms, they don’t know where from.

    Solar storms and flares could soon be detected in advance of communication blackouts
    According to the European Space Agency, these radio waves must be observed from space. The Earth’s ionosphere absorbs them before they reach the ground. The ionosphere extends 30 to 600 miles above the Earth’s surface and is filled with charged gasses.

    How will NASA track mystery radio signals?
    CURIE, once in orbit, will separate into two. The two cube satellites will then move two miles apart.

    CURIE team members work on integrating the satellites into the CubeSat deployer. (Credit: ExoLaunch)
    When the sun emits a radio wave, the two satellites will capture the signal and then triangulate where it came from.

    CURIE will fly into orbit onboard the Ariane 6 rocket. This rocket is operated by the European Space Agency. It will be its first flight.

    CURIE is sponsored by NASA’s Heliophysics Flight Opportunities for Research and Technology (H-FORT) Program. NASA later plans to launch the SunRISE mission, which will track radio signals with six satellites.


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    KO4RUL, KF7PCL, VK5FUSE and 6 others like this.
  2. KL7KN

    KL7KN Ham Member QRZ Page

    Thanks for the link!
  3. DO1FER

    DO1FER Ham Member QRZ Page

    To be on the right track, to get to know the mechanism in and of the Sun. Basic research, not only for space weather.
    VK5FUSE likes this.
  4. KR3DX

    KR3DX Ham Member QRZ Page

    Last edited: Jul 10, 2024 at 3:01 PM
    KF7PCL, VK5FUSE and KQ4GUI like this.
  5. W1YW

    W1YW Ham Member QRZ Page

    AT any given time, this is a 2 element interometer with a fixed baseline. If you ASSUME the area of eruption is not changing over a large frequency range---say 1 MHz to 10 MHz--then you can let the spatial frequency spectrum be deteremined by measurements at different frequencies and actually 'image the region. In that case all you have is a single data point of fringe at each frequency and each frequency must be regarded as independent.

    IMO that is a poor assumption.

    The grating lobes are a major PITA and will clearly pick up on other regions of the sun's low freq emission. I would bet the the optical thickness also changes as a function of frequency.IOW the region looks 'different' as you change frequency.

    Or worse, they will resolve the region and get no fringes.

    I would see this as a technology demonstrator and nothing else. MO.

    It DOES bring up an interesting question if, at solar MIN, one of these regions erupts AND hams set up their own earth baed interferometer (you have to observe below the ionosphere's MUF) to 'image ' it.

    Chip W1YW
    VK5FUSE and KR3DX like this.
  6. W1YW

    W1YW Ham Member QRZ Page

    I HATE AI guessing at my words... that's ABOVE the MUF, IOW the MUF us far lower than 10 MHz.
    VK5FUSE likes this.

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