E5 inputs: Sentinel-1 precise orbits

The Copernicus Sentinel-1 precise orbit files (AUX_POEORB) that experiment E5 used as LEO truth, byte for byte as ESA's STEP mirror serves them, in one tar with a README (licence, attribution) and MANIFEST.json (SHA-256, URL and retrieval time per file). data/e5/MANIFEST.json lists every E5 input. Not here, by their terms: ESA Swarm and GRACE-FO densities and Swarm orbits (ESA terms: onward distribution only to recipients who accept them) and SET's JB2008 indices (no licence); data/e5/MANIFEST.json gives their URLs and SHA-256.

Asset	Files	Bytes	SHA-256	Licence	Attribution
e5-sentinel1-poeorb.tar	256	153766400	b9fc1d10f2fd0e1bff50254045294bdd809ee1141df196d6e547ed9229ef3db1	Copernicus data policy: free, full and open access (Delegated Regulation (EU) No 1159/2013; Regulation (EU) 2021/696, Art. 53)	Copernicus Sentinel data 2025–2026 (files as served). Reference states and results derived from them: "Contains modified Copernicus Sentinel data 2026".

Terms quoted from each provider: https://github.com/DigitalArsenal/orbit-accuracy-experiments/blob/main/docs/data-licenses.md