Orbit files of days older than 180 days

Microwave Toolbox
#1

I am trying to create an interferogram with two S1a SLC IW images from 20150226 and 20150427. The S1BTX toolbox tells me I need to download orbit files (it does not occur automatically for some reason) and the https://qc.sentinel1.eo.esa.int/aux_poeorb/ website only contains AUX_POERB files for the past 180 days and nothing older. Where do I get the orbit file for 20150226 from?
As a matter of fact, where do I get orbit files for any of the days before the 180 days that appear on the website?

Thanks,
Gopika

#2

Are you using v1.1.1 or the current beta? The current beta should be able to get all orbit files including historic ones.

#3

Hey, Thanks for the reply. I downloaded and installed the Beta version and everything works fine. Only problem I face now is with the snaphu unwrapping (MCF runs out of memory on a 32 GB, 4 processor ubuntu VM and MST hangs at ‘Treesize: XXXX Pivots: XXXX Improvements: XXXX’). Any suggestions to eliminate this? Thank you in advance!