Data Flow#

Last revised by M. Pugliatti on 2025 FEB 4

As described in the OD process, the DWN pre-process the actual radiometric quantities that are observed by a network of ground-stations (e.g. Deep Space Network or DSN, ESTRACK, etc.) and OpNav data. In doing so, the DWN also generate auxiliary data needed by computed models (e.g. for tropo/iono corrections, frequency data, turn-around ratios, etc.) These former quantities are referred to as the “observed” ones , while the latter as “auxiliary” data. These “auxiliary” data is feeded to SCB measurement models, which implement the computed formulations from [Moyer2000] for the available measurement types. This data flow is represented in the image below, which shows how the database (DB) is going to interact with SCB and the DWN.

../_images/data_flow.png

  • [Moyer2000] T.D. Moyer, Formulation for Observed and Computed Values of Deep Space Network Data Types for Navigation, JPL/NASA, 2000.

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