Level-3 TSI data products are now available for the initial version 01 release!
The Compact Total Irradiance Monitor (CTIM) measures the total solar irradiance (TSI), a measure of the absolute intensity of solar radiation integrated over the entire solar disk and the entire solar spectrum. The CTIM Level 3 TSI data products are the daily and 6-hourly mean irradiances, reported at both a mean solar distance of 1 astronomical unit (AU) and at the true Earth-to-Sun distance of date, and zero relative line-of-sight velocity with respect to the Sun. These products respectively indicate emitted solar radiation variability (useful for solar studies) and the solar energy input to the top of the Earth’s atmosphere (useful for Earth climate studies).
TSI Data Files
Full mission downloadable ASCII data files contain data from 2022-07-07* to seven days in arrears of the present and are updated daily during nominal operations. The ASCII file structure is identical to the ASCII files produced for the earlier TIM missions (SORCE, TCTE, TSIS-1).
*The first “good” (no L2 quality flags) Level-3 solar observation was on 2022-08-05.
| Instrument | Time Cadence | Spectral Range & Resolution | Date Range | Level | Version | File Download | Interactive Access (LISIRD) |
|---|---|---|---|---|---|---|---|
| TIM | Daily | Full & N/A | 2022-07-07 to present – 7-days | 3 | 01 | TXT or SAV |  |
| TIM | 6-Hourly | Full & N/A | 2022-07-07 to present – 7-days | 3 | 01 | TXT or SAV | |
TSI Data Plots
24 Hour Averaged Data
Full Mission |
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Last 3 Months |
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6 Hourly Averaged Data
Full Mission |
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Last 3 Months |
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TSI Data Product Description
See the header in the TXT data files (above).
