Req. 5.3.5.1.7: "Low Rate Science"

The SIU FSW shall acquire low-rate science data (rate counters) from the CAL, TKR, ACD, and T&DF subsystems for transmission to the ground via telemetry.

Basis (help)

[2] (3.2.6.2.4), [3] (5.3.3), [4] (5.5.2)

2: "LAT Instrument - Spacecraft Interface Requirements Doc." (NASA 433-IRD-0001)

3.2.6.2.4: "LAT Science Data Subset"

The LAT shall provide a defined subset of science data to be included in a unique APID as defined in the SC-LAT ICD.

3: "LAT Performance Spec. - Level II(b) Spec." (LAT-SS-00010)

5.3.3: "Science Data Interface {SI/SC IRD 3.2.6.1}"

The SI shall output science data to the spacecraft via a MIL-STD-1553 data bus interface as specified in the SI/SC IRD.

4: "LAT T&DF Subsystem Spec. - Level III Spec." (LAT-SS-00019)

5.5.2: "Low-Rate Science Data Readout"

The dataflow system shall readout and process low-rate science data (rate counters) from the instrument.

Context (help)

Test(s)

003: Narrowband Telemetry Verification

This test shall verify the successful collection, sampling rate, formatting, downlinking, and transformation into user units of housekeeping and low-rate science data, alert telemetry, and diagnostic telemetry. If telemetry content is specific to a particular mode (i.e., boot mode or standard operation mode), this test shall verify the correct content as a function of mode.