A4.5 CDF Data Record Format Specifications

A4.5.3 File 1

The first CDF file contains data from the BAM, GLG, KEP, LAN, SIM, and STO experiments.

Each CDF File 1 record shall contain standard SFDU primary and secondary headers and an instrument unique science data block reflecting the instrument record structure as illustrated in Figure A4-3. A block of 16 filler bits is included at the end of the tertiary header in order to align the data along full 32-bit word boundaries.

Figure A4-3 Ulysses CDF File 1 format

Bame (BAM) Experiment

The BAM CDF science record is designed to produce one set of parameters every 4.266 minutes at any telemetry bit rate. The logical structure is shown in Table A4-3.

Processing Start/Stop: Refer to Section A4.5.2.

Record Buildup: BAM CDF record buildup will proceed following extraction of the appropriate BAM bits and processing through the PI-provided algorithms. Section A4.5.2 defines the basic data extraction procedure. Although the Bame instrument produces two types of EDR records, only the BAM-I ion instrument EDRs are used in the generation of BAM common data records.

Record Header: The BAM record shall receive a standard SFDU header as described in Section A4.4.

Data Block: The BAM data block contains BAM parameters calculated from the raw telemetry data. The order of word locations is given in Table A4-3.

Table A4-3 BAM CDF data block format

Gloeckler-Geiss (GLG) Experiment

The GLG CDF science record is designed to produce one set of parameters every cycle. The time in minutes to complete a cycle at a telemetry bit rate is given in the following table. The logical structure is shown in Table A4-4.

Processing Start/Stop: Refer to Section A4.5.2.

Record Buildup: GLG CDF record buildup will proceed following extraction of the appropriate GLG bits and processing through the PI-provided algorithms. Section A4.5.2 defines the basic data extraction procedure.

Record Header: The GLG record shall receive a standard SFDU header as described in Section A4.4.

Data Block: The GLG data block contains GLG parameters calculated from the raw telemetry data. The order of word locations is given in Table A4-4.

Table A4-4 GLG CDF data block format

Keppler (KEP) Experiment

The KEP CDF science record is designed to produce one set of parameters every 17.066 minutes at any telemetry bit rate. The logical structure is shown in Table A4-5.

Processing Start/Stop: Refer to Section A4.5.2.

Record Buildup: KEP CDF record buildup will proceed following extraction of the appropriate KEP bits and processing through the PI-provided algorithms. Section A4.5.2 defines the basic data extraction procedure.

Record Header: The KEP record shall receive a standard SFDU header as described in Section A4.4.

Data Block: The KEP data block contains KEP parameters calculated from the raw telemetry data. The order of word locations is given in Table A4-5.

Table A4-5 KEP CDF data block format

Lanzerotti (LAN) Experiment

The LAN CDF science record is designed to produce one set of parameters every 8.533 minutes at any telemetry bit rate. The logical structure is shown in Table A4-6.

Processing Start/Stop: Refer to Section A4.5.2.

Record Buildup: LAN CDF record buildup will proceed following extraction of the appropriate LAN bits and processing through the PI-provided algorithms. Section A4.5.2 defines the basic data extraction procedure.

Record Header: The LAN record shall receive a standard SFDU header as described in Section A4.4.

Data Block: The LAN data block contains LAN parameters calculated from the raw telemetry data. The order of word locations is given in Table A4-6.

Table A4-6 LAN CDF data block format

Simpson (SIM) Experiment

The SIM CDF science record is designed to produce three sets of parameters every 17.066 minutes at any telemetry bit rate. The logical structure is shown in Table A4-7.

Processing Start/Stop: Refer to Section A4.5.2.

Record Buildup: SIM CDF record buildup will proceed following extraction of the appropriate SIM bits and processing through the PI-provided algorithms. Section A4.5.2 defines the basic data extraction procedure.

Record Header: The SIM record shall receive a standard SFDU header as described in Section A4.4. The SIM record shall also receive a tertiary header as shown in Table A4-9.

Data Block: The SIM data block contains SIM parameters calculated from the raw telemetry data. The order of word locations is given in Table A4-7.

Table A4-7 SIM CDF data block format

LET

HET

KET

Stone (STO) Experiment

The STO CDF science record is designed to produce one set of parameters every 4 minutes 16 seconds at any telemetry bit rate. The logical structure is shown in Table A4-8.

Processing Start/Stop: Refer to Section A4.5.2.

Record Buildup: STO CDF record buildup will proceed following extraction of the appropriate STO bits and processing through the PI-provided algorithms. Section A4.5.2 defines the basic data extraction procedure.

Record Header: The STO record shall receive a standard SFDU header as described in Section A4.4.

Data Block: The STO data block contains STO parameters calculated from the raw telemetry data. The order of word locations is given in Table A4-8.

Table A4-8 STO CDF data block format

File 2

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