SOR3TSI6: Total Solar Irradiance 6-Hour Means

SOR3TSI6 Version 019 provides total solar irradiance data averaged at 6-hour intervals, normalized to one astronomical unit. The Total Irradiance Monitor instrument achieves a designed absolute accuracy of 100 parts per million and a long-term relative accuracy of 10 ppm per year. This final version supersedes all previous releases and is updated monthly.

Use Cases

• Modeling Earth's climate response based on precise solar energy input measurements.
• Tracking long-term solar variability using the instrument's 10 ppm per year relative accuracy.
• Calibrating satellite instruments against the TIM's absolute accuracy standard of 100 ppm.
• Studying the solar cycle's impact on atmospheric processes with 6-hour resolution data.

Strengths

• High measurement precision with a designed absolute accuracy of 100 parts per million.
• Provides long-term stability with a relative accuracy of 10 ppm per year.
• Represents a final, authoritative version (V019) that supersedes all previous releases.

Limitations

• Column names and exact data structure are not provided in the available metadata.
• Conflicting last-updated dates exist between platforms (2026-04-09 on datagov vs. 2020-02-25 on nasa_earthdata).
• Row counts and dataset size are not specified in any source.

Provenance

Source

National Aeronautics and Space Administration

Collection Method

Collected by the Total Irradiance Monitor (TIM) instrument, an ambient temperature active cavity radiometer.

Time Range

Covers the full SORCE mission duration.

Freshness

2026-04-09 21:59:28.244683

Geography

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