TAPIS

The goal of TAPIS (TAOS II ASTROPHYSICAL PARAMETER INFERENCE SYSTEM) is to estimate astrophysical parameters of occultation event candidates using their light curves. In brief, we do the following steps:

1. Build database tables using synthetically generated occultation light curves and there three observables (see TAPE).
2. For a given candidate event, estimate three observables.
3. Search the corresponding database table to find the best matched synthetic light curve.

Figure 1, 2, and 3 show the parameter estimation results of randomly chosen 300 synthetic events for SNR = 10, 5, and 3, respectively. The left panels in each figure shows the true diameter (x-axis) and the estimate diameter (y-axis). The color bar shows the true distance. As the figure shows, TAPIS successfully estimated parameters even for low SNR such as 3. Each panel also shows RMS and MAD. The right panels show the same plot but for the distance estimation. Again, TAPIS successfully estimates the distances.