STEREO SWAVES: 1-Minute Averaged Solar Radio Intensity Spectra

STEREO/WAVES (SWAVES) instruments provide 1-minute averaged radio intensity data from both the Ahead and Behind spacecraft. The dataset contains output from the High Frequency Receivers (HFR) and Low Frequency Receiver (LFR), probing frequencies from 16 MHz to 2.5 kHz. This data is produced by NASA and was last updated in March 2026.

Use Cases

• Detect and profile coronal mass ejection shocks based on radio noise from a few solar radii to one Astronomical Unit.
• Determine radial velocity of CMEs from ~2 solar radii to Earth using spectral imaging data.
• Measure heliospheric density between the sun and Earth based on interplanetary radio fluctuations.
• Analyze in-situ properties of interplanetary shocks and magnetic clouds based on electric field measurements from three orthogonal antennas.

Strengths

• Data is averaged at a 1-minute resolution, providing a consistent temporal scale.
• Instruments cover a broad frequency range from 16 MHz (HFR) down to 2.5 kHz (LFR).
• Observations are from two distinct vantage points (Ahead and Behind spacecraft).

Limitations

• Column-level documentation is absent; field semantics must be inferred after download.
• Row count and dataset size are unknown, which may limit suitability assessment.

Provenance

Source

National Aeronautics and Space Administration (NASA)

Collection Method

Measurements from the STEREO/WAVES instrument's three orthogonal 6-meter monopole antennas and HFR/LFR receivers.

Time Range

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Freshness

Last updated 2026-03 13 04:36:29.339792; freshness should be verified.

Geography

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