You are viewing an old version of this page. View the current version.

Compare with Current View Page History

« Previous Version 2 Next »

Pardon Our Dust!

This space is Under Construction. The layout is entirely notional at present.

The Pandeia engine uses a pixel-based 3-dimensional approach to perform calculations on small (typically a few arcseconds) 2-dimensional user-created astronomical scenes. It models both the spatial and the wavelength dimensions, using realistic point spread functions (produced using WebbPSF) for each instrument mode. It natively handles correlated read noise, inter-pixel capacitance, and saturation. Since the signal and noise are modeled for individual detector pixels, the ETC is able to replicate many of the steps that observers will perform when calibrating and reducing their JWST data. This simplifies interpretation of the extracted signal-to-noise ratio (SNR) calculated by the ETC.  

While the JWST ETC includes many effects not typically included in other ETCs, it is not an observation simulator. It does not simulate the full detector, nor does it include 2-dimensional effects such as distortion.

Details on the algorithms used to compute signal and noise on the detector and the strategies used to compute the extracted products can be found in Pontoppidan et al. 2016.

Say something nice here about who this page is for

Please answer a ((brief questionnaire)) to help us understand our users.

The latest version of the Pandeia engine is $version .

get the engine | get the Webb data | get the Roman data

The next planned release will occur on approximately $date. Highlights include:

  • list of high level items

Click here for draft engine release notes

Nice carefully crafted statement about level of support

  • No labels