This page offers links to recommended documentation and addresses frequently anticipated questions related to the JWST Release of the first science data. Check the material here, your question might already be answered! On this page... |
Cycle-1 data started to appear in MAST beginning on 14 July 2022.
Direct your browser to the MyST site, and follow the instructions in the MAST Accounts page.
There are multiple ways to discover JWST Observations. For instance:
JWST
" in the Mission filter and enter a range of observation start dates, e.g., "2022-07-02
" and "2022-07-09
" in the Start Time filter boxes, then click the Search button. This will search for all JWST observations that were started between 2 July 2022 through 9 July 2022.obs_collection="JWST"
and some other parameter such as instrument_name="MIRI"
. See the astroquery.mast documentation for details.That is a difficult question to answer with precision. A lot of the data gets processed within an hour or two, but there are a few edge cases where it takes more than a day. But that’s after the data processing system gets all of the pieces from Flight Operations. Many hours can elapse between the end of an exposure and transmission of that data to the ground. This is largely because JWST does not have continuous contact with the ground in the high-bandwidth channel that is required to transmit high-volume science data. That said, it is likely that most data will appear in MAST within a day or two of the end of the last exposure in an observation.
Generally the Level-2b (calibrated) and Level-3 (calibrated and combined) products are most appropriate for science analysis. Consult the JDox article Getting Started with JWST Data for details.
Navigate your browser to the special DOI Portal. Follow the instructions in the Special Searches article in the Portal Guide, specifically the section on Create a DOI.