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2025 June 13: The HLA cart and HLA footprint viewer no longer work. Minimal
maintenance is being done on the HLA interface because all HLA
functionality and data products will soon be available in the new MAST
Hubble search interface.
At that point,
the HLA interface will
be retired. Note that the HLA products will still be available.
Click on data links to immediately download data.
If you need footprints, we recommend using the
MAST Portal.
Note that both the Portal and the new search interface also provide access to the
Hubble Advanced Products (HAP), which include HLA-style products for more recent
observations.
The HLA contains no observations acquired after 2017 October 1.
The original
ST-ECF DER_SNR
page can be accessed via this link.
This page contains the implementation of a signal-to-noise ratio estimator, DER_SNR, that follows
the definition set forth by the Spectral Container Working Group of ST-ECF, MAST and CADC.
A detailed description and discussion of the algorithm can be found in
Issue #42 of the ST-ECF newsletter.
The following code is maintained by Felix Stoehr <fstoehr [at] eso [dot] org>.
