I have been look for data covering Cape Crozier, Antarctica. Latest scene available 09-Mar-20. Revisit interval would suggest there should be more. Need to see whether sea ice is beginning to form.
I do not think there actually is one. Please check the source:
scihub.copernicus.eu
If you need information about observation plans, I suggest you check Copernicus support;
eosupport@copernicus.esa.int