You are required to anonymous ftp to "ftp2.isr.umd.edu" and put the ACIS sat file to the incoming/cimlab directory.

In the following, we illustrate how to upload "product.sat" in your current directory to the incoming/cimlab directory of the "ftp2.isr.umd.edu".

$ ftp ftp2.isr.umd.edu
Name (ftp2.isr.umd.edu:"username"):anonymous
Password: your email address here
ftp>binary
ftp>put product.sat /incoming/cimlab/product.sat
ftp>bye
Goodbye.

Fill in your name, email address and the name of the .sat file in the form. Then click on the submit button. The STEP file will be displayed on your web browser once it is processed. It will also be sent to you by email.