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This is an issue that is currently being worked on. Thanks for reporting it and I'll let you know when this has been resolved.

Hello Ben,
The data distribution service at ASF is currently down. We're investigating the problem, and I'll let you know when the service has been restored.

Thanks for your patience.

The metadata provides the azimuth angle as the attribute "platformHeading." It is with respect to the North direction, where clockwise is positive and anti-clockwise is negative. These conversations posted in the STEP forum may be helpful in determining incidence angle values: https://foru...

Hello Ben,
I haven't heard reports of any system issues over the weekend that would account for the internal server error, so hope this was just a system glitch. Please let us know if you're still encountering the error.

Thanks.

Hello Hafid, Would you describe in more detail what the problem you're having is? If you had been using the SBAS tool in the past, did something change so that it stopped working as you expected? If you are new to the tool, here are a couple of resources that should help you get started: From the Ve...

Data access from ASF was unavailable over the weekend because of scheduled maintenance. Please let us know if the problem you were having persists.

Thank you.

Please send us more of the error message content or a screenshot. It's hard to tell from what you included what the problem might be.

Thank you.

Using the ASF API (https://docs.asf.alaska.edu/api/basics/) or Python Search Module (https://docs.asf.alaska.edu/asf_search/basics/) are programmatic options that allow for large volume downloads.

The ALOS PALSAR RTC product package files cannot be downloaded individually.

The only free high-resolution DEM I am aware of is the 1-meter DEM from the US Geological Survey. But it only covers the continental United States, which does not serve your needs.

Dear Amir Farshadfar, Here are some information sources that I hope will answer your questions. 1. Some commercial sources for high-resolution DEMs https://www.pgc.umn.edu/data/earthdem/ https://www.l3harris.com/all-capabilities/elevation-data-digital-elevation-models https://www.prnewswire.com/news...