2. Software Development for Observation Simulation
Efficient observational planning depends on simulating image acquisition under specific lighting conditions to determine optimal exposure times.
This simulation requires a quantitative understanding of three components:
- Camera light sensitivity, calibrated across wavelengths considering optical elements.
-
The light source spectrum, usually the Sun; in some cases, reflected light from bright host planets also contributes. Temporal variations in sunlight are accounted for in calibration.
-
The reflection spectrum of the target surface.
Integrating these factors enables estimation of expected signal and signal-to-noise ratio (SNR). The JANUS experiment specifies required SNR levels to guide exposure durations.
Key Tasks:
-
Developing software subtasks that model these components
-
Perform signal calculations for observation planning
3. Image Database Development
Starting in 2026, development of an image database will commence, beginning with the creation of a metadata catalog for JANUS camera data, adhering primarily to the PDS4 archive standard. Existing database projects will be reviewed and integrated into this new architecture. JANUS test data sets will be included for operational testing and validation.
Key Tasks:
-
Construct a relational database linked with geometric data
-
Define database schemas based on JANUS metadata requirements
-
Design and build a database backend and public middleware to connect with the JANUS team