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Last Post 03 Nov 2020 05:56 AM by
MariM
ASTER 07XT Available Band List
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sedat sedat
New Member
Posts:4
20 Oct 2020 07:51 AM
I want to work with "07XT_ASTER L2 Surface Reflectance VNIR and Crosstalk Corrected SWIR V003" product. So recently i order and download ASTER scene
( AST_07XT_00305192005082601_20201001075438_21295.hdf and *.hdf.met files) for my project. I order this AST_07XT data level because i don't want to apply any atmospheric or cross talk correction to AST_L1T data set.
But when i import the data to ENVI 5.3, band order and wavelengths are listed as below;
ASTER VNIR Band1: 0.6610
ASTER VNIR Band2: 0.8070
ASTER VNIR Band3N: 0.8040
Should these order and wavelengths be listed below?
VNIR_Band 1 VNIR Band 1 (0.52 to 0.60 µm)
VNIR_Band2 VNIR Band 2 (0.63 to 0.69 µm)
VNIR_Band3N VNIR Band 3 (0.78 to 0.86 µm)
So where is the VNIR Band1 (0.52-0.60)or(0.5560) ? In order Band 1 it comes with Band 3B, i tried also different AST_07XT granules have the same footprint, they all have same issue. But when try any another ASTER L1T product i can display the available band list as it's supposed to be with no issues.
When i ask this issue to earthdata.nasa.gov they told me they didn't see any of the issues...
Could you please tell me this if there is something i missed?
MariM
Veteran Member
Posts:2396
21 Oct 2020 08:33 AM
What version of ENVI are you running? If it is older, there may have been updates to the ASTER reader.
You can try opening the data as generic HDF to see if there are additional bands not being opened in ENVI.
sedat sedat
New Member
Posts:4
21 Oct 2020 01:22 PM
i am running Envi 5.3.1. Also when import ASTER as generic HDF dataset, it is coming with no metadata includes wavelengths etc. it is coming with just pixels...
MariM
Veteran Member
Posts:2396
29 Oct 2020 11:59 AM
Can you open it successfully in ENVI Classic?
sedat sedat
New Member
Posts:4
03 Nov 2020 04:29 AM
Both Envi and Envi Classic same unsuccesful with AST_07XT, but as said before ASTER L1T product succesfully opened in both Envi and Envi classic
MariM
Veteran Member
Posts:2396
03 Nov 2020 05:56 AM
Then unfortunately, this product does not have a specific reader to read in all the metadata. You will need to open it as generic HDF, save to ENVI format and add in the metadata.
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