Ulysses HISCALE Data Analysis Handbook
Chapter 2: HISCALE Data File Descritions and Overview
Chapter 2.2: Experiment Data Record (continued)
2.2.1 EDR SIS VOLDESC.SFD File
The complete text of the subject file is shown here in schematic form. The various levels are indented, and major sections are separated by horizontal lines for help in reading. The italicized explanatory text does not appear in the file.
Failure Protection, Detection, and Recovery Procedures
File Backup Requirements. The EDR shall have as a backup the Data Capture and Staging Subsystem (DACS) System Data Record (SDR) tape used as input into EDRGEN during System Test and shall have the Master Data Record (MDR) tapes/files as backup from Launch through the End-of-Mission.
Security/Integrity Measures. Only instrument prime data and related spacecraft engineering and spin reference data shall be provided to an individual user. No additional instrument prime data for another instrument shall be provided without prior user agreements and Project approvals. This applies not only to EDRs supplied on magnetic tape, but also to EDR data provided via Remote Access.
End-0f-File Conventions. The EDR file on the tape shall be determined by two end-of-file tape marks.
Synchronization Considerations
Timing and Sequencing Considerations. The records in the EDR files are in Spacecraft Event Time (SCET) order. If no SCET is available then data shall be placed in earth received time order as deemed appropriate by DMT.
Effective Duration. EDRs which meet Project QQC criteria are considered final archival data records.
"Detailed Interface Specifications
Structure and Organization Overview. The EDR written to magnetic tape shall consist of one file of records. If no IBM magnetic tape has been requested, tapes will begin with the first data record. The end of the file will be designated by two end-of-file tape marks. Experiment data tapes are written in binary integer format and consist of a set of EDR records, each beginning with an SFDU header and followed by the experiment data block.
Substructure Definition and Format. The remainder of the following section describes the standard formatted data unit (SFDU) headers and the data block format for each individual experiment EDR.
SFDU Headers. The ISPM EDR utilizes the Standard Formatted Data Unit (SFDU) system of headers. Described in detail on the following pages are the multi-mission primary and secondary headers (Tables 2.6 through 2.9 ) and the tertiary header which is unique to ISPM EDRs.
- Table 2.6 ISPM SFDU primary header format
- Table 2.7 ISPM SFDU primary header
- Table 2.8 ISPM SFDU secondary header format
- Table 2.9 ISPM SFDU secondary header
- Table 2.10 ISPM SFDU tertiary header format
- Table 2.11 ISPM EDR tertiary header
Next: Chapter 2.2.2: EDR Data Block Format Specifications
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Updated 8/8/19, Cameron Crane
QUICK FACTS
Mission End Date: June 30, 2009
Destination: The inner heliosphere of the sun away from the ecliptic plane
Orbit: Elliptical orbit transversing the polar regions of the sun outside of the ecliptic plane