MODAPS PCR VNP 23-003
| PCR Number | VNP 23-003 |
|---|---|
| Date | 2023-04-25 |
| Initiator | Sudipta Sarkar, Carol Davidson |
| Abstract | PGE661 2.0.3, PGE662 2.0.3, PGE663 2.0.3 LP DAAC notified LSIPS that the C2 VIIRS LST CMG products had the UpperLeftPointMtrs and LowerRightPointMtrs set incorrectly and code was revised to set metadata values in StructMetadata.0 as follows: |
| Problem Statement | Revision to VIIRS LST CMGs to correct UpperLeft and LowerRight coordinate values in outputs for NPP and JPSS1. |
| Description of Change | LP DAAC notified LSIPS that the C2 VIIRS LST CMG products had the UpperLeftPointMtrs and LowerRightPointMtrs set incorrectly and code was revised to set metadata values in StructMetadata.0 as follows: - UpperLeftPointMtrs=(-180000000.000000,90000000.000000) - LowerRightMtrs=(180000000.000000,-90000000.000000) |
| Products Affected | VNP21C1, VNP21C2, VNP21C3, VJ121C1, VJ121C2, VJ121C3 |
| Software Affected | PGE661 2.0.3, PGE662 2.0.3, PGE663 2.0.3 |
| Processing String to Receive the Change | S-NPP Forward Processing. S-NPP Reprocessing. J1 Forward Processing. J1 Reprocessing. |
| Downstream Product Effects | SNPP VIIRS Land products, including VNP21C1, VNP21C2, VNP21C3, VJ121C1, VJ121C2, VJ121C3 |
| Data Granules to be Used for Science Testing | Science test executed and all results have been duly reviewed and confirmed by LDOPE, before final approval. |
| Justification | New version needed to correct the coordinate issues in the C2 LST CMG products |
| Effective Date for Implementation of Change | PGEs noted in this document are expected to go into production, as part of the C2 reprocessing the week of April 25, 2023 for SNPP and JPSS1 and used to regenerate any LST products created so far as well as for any new LST CMGs. |
| Status | Major algorithm development completed. Sadashiva Devadiga approved 04/28/2023. Sudipta Sarkar approved 04/25/2023. |
