IERS provides data on Earth rotation, reference systems, and geophysical fluids, with models, standards, and current bulletins.
Solar Dynamics Observatory vs SDAC
How do Solar Dynamics Observatory and SDAC compare? Here are the facts side by side: pricing, platforms, open-source status and what each one is for.
| Directory detail | Solar Dynamics Observatory | SDAC |
|---|---|---|
| What it is | NASA’s Solar Dynamics Observatory provides solar imagery and data from instruments studying the Sun’s atmosphere. | NASA’s Solar Data Analysis Center serves solar images, data, news, and research resources from missions including SOHO and PUNCH. |
| 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 Solar Dynamics Observatory and SDAC.
The Madrigal Database manages and serves archival and real-time data from upper-atmosphere science instruments in multiple formats.
DARTS is JAXA’s space science data archive, covering fields including astronomy, solar physics, lunar and planetary science, and microgravity.
The Moscow center provides data on geomagnetic variations, ionospheric phenomena, solar activity, and cosmic rays.
SILSO preserves and distributes the international sunspot number, with current and historical solar observation data.
The Leibniz Institute for Solar Physics data centre stores and manages open solar observations and magnetohydrodynamic simulations.



