MODAPS PCR 19-007

PCR Number 19-007
Date 2019-03-26
Initiator Sudipta Sarkar
Abstract PGE16 v6.4.20 -- Initialize the array variable.
Problem Statement Current operational version of PGE16 (V6.4.17) was failing with "Segmentation Fault" error.
Description of Change PGE was failing from uninitialized variables. Updated the code to initialize an array in the day/night portion of the PGE16 code to avoid the memory error.
Products Affected Daily L2 and L3 LST (MOD11_L2, MOD11A1, MOD11B1, MYD11_L2, MYD11A1, MYD11B1)
Software Affected PGE16 v6.4.20
Processing String to Receive the Change Terra and Aqua Forward Processing. Terra and Aqua Forward Reprocessing.
Downstream Product Effects MxD11A2, MxD11C1, MxD11C2, MxD11C3, MxD11B2, MxD11B3
Data Granules to be Used for Science Testing Ran forward processing in test AS 1687 starting with the last successful day in operation until the leading edge and then transition the AS to operational processing in AS 6.
Justification Operational processing of LST could not be restarted without the bug fix.
Effective Date for Implementation of Change Completed
Status Major algorithm development completed. Sadashiva Devadiga approved 04/01/2019. Gang Ye approved on 04/02/2019.