TWINS-2 Ephemeris, Definitive Spacecraft Attitude, PT0.512S Data

Two Wide-angle Imaging Neutral-atom Spectrometers 2, TWINS 2, Spacecraft Attitude data, Earth Centered Inertial, ECI, coordinates. This TWINS data set contains spacecraft attitude data as polar and azimuthal instrument pointing vectors. The polar vector points along the TWINS rotation axis. The azimuthal vector lies in the plane normal to the polar vector and points toward the central scanning position, which is defined as the zero-point location. Such pointing is derived from both the spacecraft attitude history, SAH, file and the sensor mounting orientation. The computation employed is designed to achieve a pointing accuracy of 0.5°. Any deviation from this accuracy level is indicated in the header record metadata.

Data and Resources

Additional Info

Field Value
Maintainer David J. McComas
Last Updated July 9, 2025, 20:02 (UTC)
Created April 8, 2025, 14:35 (UTC)
accessLevel public
bureauCode {026:00}
catalog_conformsTo https://project-open-data.cio.gov/v1.1/schema
harvest_object_id bb8cf480-dd89-490e-a5c7-ab417cea9c77
harvest_source_id b99e41c6-fe79-4c19-bbc3-9b6c8111bfac
harvest_source_title Science Discovery Engine
identifier https://doi.org/10.48322/btg2-gm95
modified 2025-07-09T19:35:24Z
programCode {026:000}
publisher NASA Space Physics Data Facility (SPDF) Coordinated Data Analysis Web (CDAWeb) Data Services
resource-type Dataset
source_datajson_identifier true
source_hash b30b2fb559f1b279e744aba0fb086f7b8f52a612f0eec45e468c6819a3f094fd
source_schema_version 1.1
temporal 2008-04-14/2016-10-27
theme {Heliophysics}