Data Access & Summary
View the EVE Data Access Page for documentation and descriptions.
| Level | Description | Wavelength Coverage | Data Link |
|---|---|---|---|
| 0CS | Space Weather: Crudely calibrated 1-minute averaged broadband irradiances from ESP and MEGS-P broadband photometers with minimum latency. | 0.1-7, 18.2, 25.6, 30.4, 36.6, and 121.6 nm | Latest day, Latest 15 minutes, Historical |
| 0C | Space Weather: Crudely calibrated 1-minute averaged spectral irradiance from MEGS with less than 15 minute latency. No longer produced. | 7-37 nm | Latest file, Daily files |
| 1 | Broadbands: Fully calibrated ESP photometer irradiances at instrument 4 Hz cadence. Full science potential, available next day. | 0.1-7, 18.2, 25.6, 30.4, 36.6 nm | Daily filesCalendar |
| 2 – spectra | Spectrum: Fully calibrated merged spectra at 0.02 nm sampling and instrument 10 second cadence. Full science potential, available from 2010 through early 2018 when MEGS-B integration time increased to 60 seconds. Files start with “EVS_”. | 6-105 nm | Hourly filesCalendar |
| 2 – lines | Lines, bands, diodes: 30 extracted emission lines, 20 extracted bands, and all photometer bands plus ESP quad diode fractions at the spectrum cadence of 10 seconds. Photometer data are averaged down to 10 seconds. Partial science potential, fulfills extracted line requirements, available 2010 through early 2018. Files start with “EVL_” and reside in the same directories with the spectra. | Many | Hourly filesCalendar |
| 2b – spectra | Spectrum: Fully calibrated merged spectra at 0.02 nm sampling and 60 second cadence. Full science potential, available next day. Files start with “EVS_”. | 6-105 nm | Daily filesCalendar |
| 2b – lines | Lines, bands, diodes: 39 extracted emission lines, 20 extracted bands, and all photometer bands plus ESP quad diode fractions at the cadence of 60 seconds. Photometer data are averaged down to 60 seconds. Partial science potential, fulfills extracted line requirements, available next day. Files start with “EVL_” and reside in the same directories with the spectra. | Many | Daily filesCalendar |
| 3 | Daily Average: Daily averaged merged spectra at 0.02 nm sampling, extracted lines, bands, photometer data. Available next day. | 6-105 nm plus 121.6 nm | Daily filesCalendar |
| 3 – merged | Mission-merged: Full mission of level 3 data in one file. Three different bin sizes available (0.02, 0.1, 1.0 nm). Available next day. | same as level 3 | Browse directory |
| 4 | Modeled Spectrum: one-minute cadence three-component spectra model based on quiet-sun, active-region, and flare reference spectra. | 0.1-106 nm | Browse directory |
| 0C – SAM | Space Weather: SAM 5-minute irradiance peak and centroid locations. 4 minute latency. |
0.1-7 nm | Latest 5-minute file, Browse 5-minute directory, Browse 1-minute directory |
Note that due to unexpected rapid degradation, MEGS-B (and consequently MEGS-P) have limited daily exposure. Solar measurements for MEGS-B are made for one 3-hour period each day plus flare campaigns.