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emit-sds-l1a

Description

NOTE - See the develop branch - set as default - for the latest updates.

Welcome to the EMIT Level Level 1A science data system repository. To understand how this repository is linked to the rest of the emit-sds repositories, please see the repository guide.

This repository contains scripts for executing the various EMIT L1A PGEs. These PGEs include the following functions:

  • Depacketizing science frames from CCSDS stream files
  • Depacketizing engineering data from CCSDS
  • Decompressing and reassembling raw image files in ENVI format
  • Reformatting BAD STO files into NetCDF files

Dependency Requirements

This repository is based on Python 3.x. See emit-sds-l1a/setup.py for specific dependencies.

Installation Instructions

Clone the repository:

git clone https://github.jpl.nasa.gov/emit-sds/emit-sds-l1a.git

Run pip install:

cd emit-sds-l1a
pip install -e .

Clone the emit-ios repository

git clone https://github.jpl.nasa.gov/emit/emit-ios.git

Install the emit-ios repository

cd emit-ios
pip install -e .

Example Execution Commands

Depacketizing Science Frames

python depacketize_science_frames.py <ccsds_path>

Depacketizing Engineering Data

./run_l1a_eng.sh <ccsds_path> <work_dir> <edp_exe>

Where the "edp_exe" is the path to the engineering data processor executable.

Decompressing and Reassembling Raw Images

python reasssemble_raw_cube.py <frames_dir> --flexcodec_exe <flexcodec_exe> --constants_path <constants_path> --init_data_path <init_data_path>

Where the "flexcodec_exe" is the path to the decompression executable and the constants_path and init_data_path are decompression files.

Reformatting BAD STO Files

python reformat_bad.py <bad_sto_dir>