GIOTTO ION MASS SPECTROMETER HIGH ENERGY RANGE DATA V1.0

A wide range of ion species and velocity distributions are expected to be found as the Giotto spacecraft traverses the coma of Halley's Comet. The outer coma is characterized by the interaction between solar wind and cometary plasmas, the inner coma by the outflow of cometary neutrals and their ionization products. The resultant demands on instrument dynamic range preclude use of a single sensor for measurements of ion composition. The Giotto Ion Mass Spectrometer (IMS) therefore consists of two sensors: one optimized for the outer and the other for the inner coma, with each obtaining complementary information in the region for which it is not optimized. Both sensors feature mass imaging characteristics, thereby permitting simultaneous measurements of several ion species by means of multi-detector arrays. The prime objective of the High-Energy Range Spectrometer (HERS) is to measure the ion abundances and three-dimensional velocity distributions outside the cometary contact surface.

Data and Resources

This dataset has no data

Field Value
accessLevel public
accrualPeriodicity irregular
bureauCode {026:00}
catalog_@context https://project-open-data.cio.gov/v1.1/schema/catalog.jsonld
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
catalog_describedBy https://project-open-data.cio.gov/v1.1/schema/catalog.json
identifier urn:nasa:pds:context_pds3:data_set:data_set.gio-c-ims-3-rdr-hers-halley-v1.0_7d4u-8pfd
issued 2018-06-26
landingPage https://pds.nasa.gov/ds-view/pds/viewDataset.jsp?dsid=GIO-C-IMS-3-RDR-HERS-HALLEY-V1.0
modified 2025-07-17
programCode {026:005}
publisher National Aeronautics and Space Administration
references {https://pds.nasa.gov}
resource-type Dataset
source_datajson_identifier true
source_hash 561b227a1b0b53520abff6bb5be4112607d95b1cbed47d549fbbf77d095617c5
source_schema_version 1.1
theme {"Earth Science"}
Groups
  • AmeriGEOSS
  • National Provider
  • North America
Tags
  • AmeriGEO
  • AmeriGEOSS
  • CKAN
  • GEO
  • GEOSS
  • National
  • North America
  • United States
  • giotto
  • halley
isopen False
license_id notspecified
license_title License not specified
maintainer Thomas Morgan
maintainer_email thomas.h.morgan@nasa.gov
metadata_created 2025-09-24T14:53:49.395870
metadata_modified 2025-09-24T14:53:49.395876
notes A wide range of ion species and velocity distributions are expected to be found as the Giotto spacecraft traverses the coma of Halley's Comet. The outer coma is characterized by the interaction between solar wind and cometary plasmas, the inner coma by the outflow of cometary neutrals and their ionization products. The resultant demands on instrument dynamic range preclude use of a single sensor for measurements of ion composition. The Giotto Ion Mass Spectrometer (IMS) therefore consists of two sensors: one optimized for the outer and the other for the inner coma, with each obtaining complementary information in the region for which it is not optimized. Both sensors feature mass imaging characteristics, thereby permitting simultaneous measurements of several ion species by means of multi-detector arrays. The prime objective of the High-Energy Range Spectrometer (HERS) is to measure the ion abundances and three-dimensional velocity distributions outside the cometary contact surface.
num_resources 0
num_tags 10
title GIOTTO ION MASS SPECTROMETER HIGH ENERGY RANGE DATA V1.0