| Zur Navigation springen Zum Content springen Contact | Sitemap | Glossary | Lexicon | FAQ |

Data

Products.
Data access services.
Tools.
- Aviso user handbooks.
- Software.
- Data format.
- Citation.
- Pass locator.
- Poseidon-1 pass/cycle calendar.
- Cycle calendar for Jason-1, Topex/Poseidon and Envisat .
- Cycle/pass - date conversion.
- Calendar days or julian days.
- List passes.
Product information.
Operational news.

Home / Data / Tools / Calendar days or julian days

Print

PDF

Convert Calendar days in Cnes or Nasa julian days, or vice versa

Nasa julian days are number of days since January 1^st, 1958
whereas Cnes julian days start at January 1^st, 1950.