Contact
Contact
Questions about the instruments, the method or the data are welcome, and so are corrections.
Get in touch
If you are working on 21 cm hydrogen with small dishes, running a narrowband drift survey, or you think something on this site is wrong, I would like to hear from you.
Data
Hydrogen line observations are published openly on Zenodo. Integrated spectra from this site are on a standard 1024-channel grid and can be shared for any period the archive still covers. Raw IQ is not kept.
Corrections
If a number here looks wrong, it may well be. Everything on this site is produced automatically and published without review, which is the point, but it also means mistakes reach the page. Reports are appreciated.