Access to ftp? Dataset
downloading of the dataset requires user name and password. how do i get the log in details? thank you

From where have you got this link? Probably you need to ask someone from

Also I have moved your post to a more appropriate place.

in this file

Actually the username should be rsat2 and the password yvr578MM, But it seems things changes since the tutorial was written.
@junlu can you check the links, please?

The sample data can be download at