NASA’s Solar Dynamics Observatory provides solar imagery and data from instruments studying the Sun’s atmosphere.
SDAC
vsInternational Earth Rotation and Reference Systems Service
SDAC vs International Earth Rotation and Reference Systems Service
How do SDAC and International Earth Rotation and Reference Systems Service compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | SDAC | International Earth Rotation and Reference Systems Service |
|---|---|---|
| What it is | NASA’s Solar Data Analysis Center serves solar images, data, news, and research resources from missions including SOHO and PUNCH. | IERS provides data on Earth rotation, reference systems, and geophysical fluids, with models, standards, and current bulletins. |
| Website | ||
| Type | Website | Website |
| Topic | ||
| Pricing | Not confirmed | Not confirmed |
| Platforms | Web | Web |
| Open source | Not stated | Not stated |
| Language | English | English |
| Alternatives |
Other options to consider
Sites similar to both SDAC and International Earth Rotation and Reference Systems Service.
The Earth Orientation Center provides Earth orientation time series, reference series, bulletins, and related analysis resources.
SILSO preserves and distributes the international sunspot number, with current and historical solar observation data.