JWST Data in AWS Cloud

JWST Data are Now Available in AWS

JWST data are now available in MAST's AWS cloud copy.

At this time, nothing is changing with traditional access methods like the MAST Portal, MAST Mission Search, and our APIs:you can still query for and download data as before. By adding a copy of the data to the cloud, we are offering users a new, high availability, high throughput mirror of our data.

Data Access

There are two methods for accessing data from the cloud:

1. The recommended method is to use a science platform. Using a platform allows you to read science files directly into memory; you do not need to wait for a download to begin your analysis. TIKE, our flagship platform, is optimized for time series analysis: astropy, astroquery, and lightkurve, are three particularly useful pre-installed packages. TIKE comes with pre-loaded notebook tutorials to get you started with cloud data analysis.

2. Cloud data are also available using the astroquery.mast API. Your existing scripts can be modified to download from the cloud; just add the cloud_only=True parameter to the function Observations.download_products().

One important caveat is that only public data are available in the cloud; data still in the exclusive access period are not available from AWS. If you encounter any difficulties when accessing the data, please contact the MAST Help Desk.

Links and Resources:

• TIKE Cloud Platform
• Astroquery.MAST API Readthedocs
• STScI Registry of Open Data on AWS
• STScI JWST Home Page
• MAST Help Desk