DIRECTIVE NO:                      [Code] - PG - XXXX.Y.Z                                                                     APPROVED BY Signature:
EFFECTIVE DATE:                                                                                                                                   NAME:
EXPIRATION DATE:                                                                                                                               TITLE:

Responsible Office: Code 682/Laboratory for Astronomy and Solar Physics

Title: Plan for handling HESSI data at GSFC

P1. PURPOSE

This PG provides the plan to design, develop, test and implement a data handling system for the management, storage, analysis, distribution, and archiving of HESSI data.

P2. REFERENCE

(1) HESSI proposal in response to NASA AO-97-OSS-03 dated June 15,1997.
HESSI Phase-A Report dated March 1998
The HESSI Project Data Management Plan (PDMP) dated March 1999
The Configuration Management Plan for SMEX Missions.

(2) None

P3. SCOPE

High Energy Solar Spectroscopic Imager (HESSI) is a Small Explorer (SMEX) mission scheduled for launch in July 2000. It is described in the original proposal submitted in June 1997 in response to NASA AO-97-OSS-03 and in the Phase A Report dated February 1998. The HESSI Principal Investigator is Dr. Robert P. Lin at the Space Sciences Laboratory of the University of California at Berkeley^. The lead American institutions for the development of HESSI are the University of California at Berkeley and Goddard Space Flight Center. The Paul Scherrer Institut (PSI) in Switzerland is developing and integrating the imager and aspect systems. Spectrum Astro is developing the spacecraft. The Swiss co-investigator institution, Eidgen’ossische Technische Hochschule (ETH), in Zurich will participate in the data analysis. This PG applies to those aspects of the HESSI data handling that will be carried out at Goddard.