NASA: Roobka Radio-guud ee Farsamada SpEED Demon Weydiiyay Mabdaada Kuwa Ku Jira Sidaas
NASA waxay soo saartay natiijo cusub oo muujinaysa in roobka radio-guud ee farsamada SpEED Demon uu ka gudbay midabka caadiga ah ee la filayay, isagoo muujiyay inuu yahay mid aad u xasaasi ah oo ku jira sifooyin kala duwan.
Maxaa Noqday Roobka Radio-guud ee Farsamada SpEED Demon?
Roobka radio-guud ee farsamada SpEED Demon wuxuu ka furmay xarunta NASA ee Wallops Flight Facility ee Virginia, 24-kii August 2022. Wuxuu ahaa mid aad u gaaban oo loogu talagalay inuu diiwaangelinayo sifooyinka roobka radio-guud ee farsamada.
Waxaa loo isticmaalay inuu diiwaangelinayo sifooyinka roobka radio-guud ee farsamada, kaas oo ka furmay xarunta NASA ee Wallops Flight Facility ee Virginia, 24-kii August 2022.
Sifooyinka Roobka Radio-guud ee Farsamada SpEED Demon
Roobka radio-guud ee farsamada SpEED Demon wuxuu muujiyay inuu yahay mid aad u xasaasi ah oo ku jira sifooyin kala duwan, kaas oo ka furmay xarunta NASA ee Wallops Flight Facility ee Virginia, 24-kii August 2022.
Waxaa loo isticmaalay inuu diiwaangelinayo sifooyinka roobka radio-guud ee farsamada, kaas oo ka furmay xarunta NASA ee Wallops Flight Facility ee Virginia, 24-kii August 2022.
Natiijooyinka Roobka Radio-guud ee Farsamada SpEED Demon
Roobka radio-guud ee farsamada SpEED Demon wuxuu muujiyay inuu yahay mid aad u xasaasi ah oo ku jira sifooyin kala duwan, kaas oo ka furmay xarunta NASA ee Wallops Flight Facility ee Virginia, 24-kii August 2022.
Waxaa loo isticmaalay inuu diiwaangelinayo sifooyinka roobka radio-guud ee farsamada, kaas oo ka furmay xarunta NASA ee Wallops Flight Facility ee Virginia, 24-kii August 2022.
A NASA sounding rocket launched from Virginia in August 2022 became the first to deploy multiple probes simultaneously inside a sporadic E layer, uncovering unexpected structure in the ionospheric phenomenon that can disrupt radio signals and GPS accuracy.
What Are Sporadic E Layers?
Sporadic E layers are thin veils of metallic haze that drift through the edge of space, forming in the ionosphere around 40 miles (60 kilometers) up from vaporized dust of burnt-up meteors. These layers reflect radio waves, sometimes sending signals ping-ponging off in unexpected directions and rendering communication technology temporarily unreliable.
The biggest source of error in the GPS in your phone, for example, is from the plasma in the ionosphere, and sporadic E layers can contribute to this uncertainty. Scientists have long sought a fuller understanding of these radio-disrupting clouds, but until recently, they had only sampled them one narrow slice at a time.
A Multi-Point View of the Layer
The SpEED Demon mission released four dropsondes that flew away from the main payload and from one another, each measuring the plasma along its own track and beaming its measurements back to ground stations. Together with the main payload, the probes sampled the layer in a total of five places at the same moment, turning a narrow view into a comprehensive picture.
The data revealed surprising complexity inside the sporadic E layer. Rather than a smooth, dense pancake of metallic particles, the layer that SpEED Demon flew through appeared uneven and structured, shaped by turbulent winds moving through the neutral air around it.
Ongoing Research and Future Missions
On the way down, the layer even split into two distinct peaks, and the team found that shape was consistent with modulation by Kelvin-Helmholtz billows. Because the flight was unable to measure the local winds and electric fields directly, the researchers are careful to call the billow explanation plausible rather than confirmed.
Barjatya's team used a similar multi-probe strategy to launch rockets into the paths of the October 2023 annular eclipse and April 2024 total solar eclipse. In June 2025, they flew SpEED Demon's most direct descendant, Sporadic-E ElectroDynamics, or SEED, into sporadic E layers from Kwajalein Atoll in the Marshall Islands.
Ilaha iyo xuquuqda sawirka
Sawir: NASA News Releases Xigasho
