SILSO preserves and distributes the international sunspot number, with current and historical solar observation data.
International Earth Rotation and Reference Systems Service
vsSolar Dynamics Observatory
International Earth Rotation and Reference Systems Service vs Solar Dynamics Observatory
How do International Earth Rotation and Reference Systems Service and Solar Dynamics Observatory compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | International Earth Rotation and Reference Systems Service | Solar Dynamics Observatory |
|---|---|---|
| What it is | IERS provides data on Earth rotation, reference systems, and geophysical fluids, with models, standards, and current bulletins. | NASA’s Solar Dynamics Observatory provides solar imagery and data from instruments studying the Sun’s atmosphere. |
| Website | ||
| Type | Website | Website |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | Web |
| Open source | Not stated | Not stated |
| Language | English | English |
| Alternatives |
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