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Because of the vast number of different MODIS products that are currently available, and the fact that many of them do not use a consistent HDF file structure, ENVI's ability to read data varies greatly from one product to the next. As you noticed, when opening via the MODIS option, you only get emissivity bands because those are the ones that ENVI can recognize as having valid geographic information for that particular product. The other bands can be brought in via the HDF option, but again, as you point out, the geographic information is not present. For those bands of data to be georeferenced, a custom IDL program needs to be written to extract the data from the HDF, along with the longitude and latitude bands, which are then used to create a Geographic Lookup Table, which can then be used to georeference the data. For assistance with carrying out this process, you might want to contact Technical Support at support@ittvis.com.
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