SolarSoftSolarSoft

HESSI Analysis Guide

High Energy Solar Spectroscopic Imager

Ver 0.?? Ed: R.D. Bentley - Date Below

This Copy Produced: May 31, 2001

Prepared at
Mullard Space Science Laboratory
University College London

Note: This Guide is still under Development!!

Contents

1 Introduction
    1.1 The HESSI Mission
    1.2 HESSI Instrument Data
    1.3 References
    1.4 Contacts
    1.5 Acknowledgements
2 HESSI User Guide
        2.0.1 Environment Variables
    2.1 Selecting and Reading Data
        2.1.1 The HESSI Observing Summary
        2.1.2 Using the HESSI Flare List
        2.1.3 Using a Map Object or an SSW Index Record
    2.2 Time plots of HESSI Data
        2.2.1 Retrieving parameters
    2.3 Image Reconstruction
        2.3.1 Reconstruction Techniques
        2.3.2 Verifying the Image quality
        2.3.3 Keywords related to Imaging
    2.4 Spectroscopy
        2.4.1 Keywords related to Spectroscopy
    2.5 More Complex Data products
        2.5.1 Imaging Spectroscopy
        2.5.2 Image Cube Lightcurves
    2.6 Comparing HESSI with Other Data
        2.6.1 Comparing with Images
        2.6.2 Comparing Time series
    2.7 HESSI Synoptic Data Archive
    2.8 HESSI Graphic User Interface (GUI)
    2.9 Simulating HESSI Data
    2.10 Software Help
3 HESSI Instrument Guide
    3.1 The HESSI Observatory
        3.1.1 Instrument Description
        3.1.2 Spacecraft Pointing
    3.2 HESSI Instrument Subsystems
        3.2.1 Imaging System
        3.2.2 Germanium Detectors
        3.2.3 Attenuators
        3.2.4 Solar Aspect Sensor (SAS)
        3.2.5 Roll Angle Sensor (RAS)
        3.2.6 Data Formats
    3.3 HESSI Instrument Performance
        3.3.1 Sensitivity
        3.3.2 Issues that affect performance
    3.4 Image reconstruction
        3.4.1 Selecting the sub-collimators and energy range
        3.4.2 Testing the Image Quality

A Useful HESSI Software
B Web Version of the HAG

Converted at the YDAC on May 31, 2001
(from LaT_EX using T_TH, version 1.92, with postprocessing)