I am finding myself with this same issue. I am trying to work with Chandrayaan-2 DFSAR calibrated SLC images (downloaded from https://chmapbrowse.issdc.gov.in/MapBrowse/).
- Within the Data directory, the calibrated images come both as seleno-referenced images or SRI (ellipsoid-projected, I believe), GRI or Ground Range Images, and SLI or Single-Look Complex images.
Each dataset comes with its metadata in XML files contained in the same directory.
Each polarization of GRI and SRI TIF files contains one band, while SLI TIF files contain two bands (I and Q complex data). - Within the Geometry directory, one can find the satellite orbit files (OAT). One is a table with metadata, and the other is a CSV with the satellite position, speed, etc.
Each dataset also has a CSV file with latitude, longitude, slant range distance, and incidence angle of the satellite while imaging.
It would be great if in the future, SNAP could pick up these images to process them.
Chandrayaan-2 SAR calibrated data contents example:
..[ch2_sar_ncxl_20220320t150601874_d_fp_d18]
├── [browse]
│ └── [calibrated]
│ └── [20220320]
│ ├── ch2_sar_ncxl_20220320t150601874_b_brw_xx_fp_xx_d18.png
│ └── ch2_sar_ncxl_20220320t150601874_b_brw_xx_fp_xx_d18.xml
├── [data]
│ └── [calibrated]
│ └── [20220320]
│ ├── ch2_sar_ncxl_20220320t150601874_d_gri_in_fp_xx_d18.tif
│ ├── ch2_sar_ncxl_20220320t150601874_d_gri_xx_fp_hh_d18.tif
│ ├── ch2_sar_ncxl_20220320t150601874_d_gri_xx_fp_hv_d18.tif
│ ├── ch2_sar_ncxl_20220320t150601874_d_gri_xx_fp_vh_d18.tif
│ ├── ch2_sar_ncxl_20220320t150601874_d_gri_xx_fp_vv_d18.tif
│ ├── ch2_sar_ncxl_20220320t150601874_d_gri_xx_fp_xx_d18.xml
│ ├── ch2_sar_ncxl_20220320t150601874_d_sli_xx_fp_hh_d18.tif
│ ├── ch2_sar_ncxl_20220320t150601874_d_sli_xx_fp_hv_d18.tif
│ ├── ch2_sar_ncxl_20220320t150601874_d_sli_xx_fp_vh_d18.tif
│ ├── ch2_sar_ncxl_20220320t150601874_d_sli_xx_fp_vv_d18.tif
│ ├── ch2_sar_ncxl_20220320t150601874_d_sli_xx_fp_xx_d18.xml
│ ├── ch2_sar_ncxl_20220320t150601874_d_sri_in_fp_xx_d18.tif
│ ├── ch2_sar_ncxl_20220320t150601874_d_sri_ma_fp_xx_d18.tif
│ ├── ch2_sar_ncxl_20220320t150601874_d_sri_xx_fp_hh_d18.tif
│ ├── ch2_sar_ncxl_20220320t150601874_d_sri_xx_fp_hv_d18.tif
│ ├── ch2_sar_ncxl_20220320t150601874_d_sri_xx_fp_vh_d18.tif
│ ├── ch2_sar_ncxl_20220320t150601874_d_sri_xx_fp_vv_d18.tif
│ └── ch2_sar_ncxl_20220320t150601874_d_sri_xx_fp_xx_d18.xml
└── [geometry]
└── [calibrated]
└── [20220320]
├── ch2_sar_ncxl_20220320t150601874_g_gri_xx_fp_xx_d18.csv
├── ch2_sar_ncxl_20220320t150601874_g_oat_xx_fp_xx_d18.csv
├── ch2_sar_ncxl_20220320t150601874_g_oat_xx_fp_xx_d18.xml
├── ch2_sar_ncxl_20220320t150601874_g_sli_xx_fp_xx_d18.csv
├── ch2_sar_ncxl_20220320t150601874_g_sri_xx_fp_xx_d18.csv
└── ch2_sar_ncxl_20220320t150601874_g_xxx_xx_fp_xx_d18.xml