[GLIMS] Check your favorite area for ASTER scenes

GLIMS may have had a good year for ASTER acquisitions. Some of you analyzed success/failure in sample areas of your regions of interest in previous years. Those checks provided the feedstock for complaints I made about poor coverage. It only took 17 years, but it seems we finally had a good year. Some areas were under-served (central and eastern Himalaya for instance), but some places that historically had very few images (European Alps and Alaska) had a good summer in 2016, so it seems. Further checks in 2016 (and southern hemisphere in 2017) could be checked again. Hopefully clouds aren't too bad; l that's my one worry. --Jeff K