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Astronomer's Proposal Tools
APT is a java-based tool used by astronomers to craft HST Phase 1 and Phase 2 observation programs. It provides graphical input of observing parameters and feedback about observations similar to that provided by RPS2, including timing, scheduling, and target visualization. .

CPT Database Support
Database Support is an ongoing effort leveraging DESI's database expertise to enhance STScI's software development.

DADS Distribution Redesign
The Distribution redesign is a project to modernize the DADS software architecture specific to data distribution. In addition to removing the distribution dependency on VMS, this project will decrease the time it takes users to retrieve data through a more robust system, caching data, allowing operators to set priorities on requests, and allowing users to select specific files from datasets.

DESI Databases
DESI DataBase Support

ESS Test Center
The ESS Test Center provides a centralized location for testing STScI software on diverse platforms and Operating Systems.

FREPI Front End Process Identification/Improvement
To identify the in-house proposal process from Call for Proposals output to QM output and develop requirements for improvement to operations

Observatory Monitoring System
The Observatory Monitoring System (OMS) is designed to monitor the engineering telemetry collected on board the spacecraft.

On-The-Fly Calibration
The On-The-Fly-Reprocessing (OTFR) system provides archive users with the latest data processing features including updated calibration algorithms and keyword updates, as well as the latest, most optimal, calibration reference files. The OTFR system, built on the OPUS architecture, recreates calibrated FITS format data from the raw science telemetry for each archive request.

Two-Gyro Science
Two Gyro Science (TGS) refers to the mechanisms and methods that HST will use to continue to schedule science observations in the event that only two working gyros remain onboard.


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ESS Organization Contact

For further information, contact

Division Head
Jim Etchison

Deputy Division Head
Carl Johnson

Administrative Supervisor
Linda Kaiser


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