FAQ

Q
For some LTOA products created by reprocessing, There may be a missing L1B (POL) input.
A
Constraints of LTOA and Subsequent Products
  1. In the tile product, "observation start time" may differ between the attribute information and dataset.
  2. The stored observation date and time may differ from the file name.
  3. The QA flag may be stored in a different area than the observation data.
  4. There are some LTOA products are not created due to special observation operations.
  5. Older version products have been released. (Link: List of Remaining previous versions)
    1. Insufficient L1B input
    2. There is a uniform position shift of Half-pixel in the column direction.
  6. There are some un-generated LTOA data during the Initial Checkout Period.
  7. Land products with incorrect flags.
  8. Some products that have not been generated.
  9. The certain product contains invalid values.
Details Limitations of LTOA
No.5-1 and No.5-2 were issues in previous versions and have already been corrected.
However, older version products may still exist, so please be mindful when using the data.

Last update: 2025/03/28