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HST and FUSE DADS retrievals will be down from Tuesday, September 2 through Wednesday Sept 3 for a DADS/OPUS installation. See list of alternative data sources. During part of this time, the database will also be down and so searches will be down during that time (HLA and GALEX are unaffected by this downtime).
Retrieval of FUSE Data from MAST
This page explains the Retrieval Options and gives information on contents
of FUSE data.
Once observations of interest are found, registered and anonymous users can retrieve the data. We describe here the various retrieval options for FUSE data and explain the various terms involved, which you will encounter on the retrieval page.
Note that the browsing capabilities on this page may differ depending on whether FUSE data were last processed after early-September 2002, corresponding to the implementation of CALFUSE 2.2 pipeline processing software. Subsequent to this date, browse images are availabe for the two dimensional spectral images and for count rate (vs. time) plots for individual exposures of an observation. Reprocessing of older data is currently underway, and ultimately these plots will be made available for them as well; for a discussion of this point see the "Changes in data products..." section below.
General
- Retrieving Public Data Anonymously
- You can retrieve public data using the username "anonymous" and your email address as your
password .
- Archive Username
- Your archive username. This is the username you were given when you
registered for an archive account.
If you don't have an archive account, you can register for one on the web at
http://archive.stsci.edu/registration/ or use the anonymous method for public data.
If you register, you should receive your archive username and password via email in a few minutes.
- Archive Password
- Your archive password. This is the password that was given to you
when you registered for your archive account (See Archive Username,
above) or your email address if you are using the anonymous method for nonproprietary data.
- Delivery Options
- How you want the data sent to you. You may chose either an electronic
delivery option or a hard-media delivery option.
- FTP: FTP the data to the destination shown
- The data will be FTPed to the given destination.
- SFTP: sftp the data to the destination shown
- The data will be FTPed to the given destination using OpenSSH v2.
- STAGE: Put the data onto the Archive staging disk.
- The data will be written to the Archive staging disk. You will be able
to pull from the staging disk using FTP and logging in with your archive username and password. If you used the
anonymous method, you can use either your username and password or anonymous ftp.
Only non-proprietary data
may be retrieved. You can delete your data when you are done.
- Destination (if you selected FTP or STFP)
- This is where you would like the data sent. These fields are required
if you select the FTP or SFTP retrieval option. The data will be delivered
to this destination via the delivery option selected.
- Hostname
- The hostname of the destination.
- Directory
- The name of the directory to which the data will be written.
Please make sure that this directory exists, is writeable,
and has enough space. The retrieval will fail otherwise.
(Unfortunately, for technical reasons, we can't reliably estimate the size of your retrieval until
the files are read from the optical platters, so we can't tell you whether there is enough space there,
but generally, retrievals are rarely more than a gigabyte in total size.)
- Username
- The username to be used when FTPing the data.
- Password
- The password for the destination username.
Invalid Password Characters There are five characters which, if present in a password, will cause the retrieval to fail: (,),*,", and/.Retrieval Security All the information you enter in this form will be sent to ST ScI through an SSL (encrypted) web connection using a Verisign certificate. The password remains encrypted until it is needed to transfer the data to you. The password is not retained after the data are transferred. If your local system disallows FTP or sftp access and you are requesting only public data, you can use the STAGE option.
Selection of File Packages
Select package of files you would like (any combination of options):
- Minimum recommended Files
- Default selection of calibrated observation files plus pipeline
processing logs (see below).
- Calibrated Exposure Files
- Calibrated exposure files.
- Raw Exposure Files
- Raw exposure files.
- Observation Files
- Calibrated observation files.
- Default option: Minimum Recommended Files
-
The default set of files delivered to the requestor is the first option
under "Files Requested" on the Retrieval Options page. This option returns
just 12 calibrated files (rootname "*fcal") per exposure - 8 for each
detector/side, and 4 trailer
files (trailer files are the logs of the pipeline processing history of
the observation), irrespective of the TTAG or HIST observing mode.
The files in this package are only those unique to a given observation.
Quick-look gif files are not included in this package.
It is important to note that for most (TTAG) observations files are returned for all three spectral entrance apertures, even though only one is normally used. For HIST observations only the target aperture admits light and therefore only one set of aperture files is generated (see the FUSE Instrument and Data Handbook, Section 3.2: Spectral Image (HIST) Mode)
File Nomenclature
- Entering specific file extensions
- Enter the specific three-letter file extension if it is not listed in the scrolling listbox.
- File Extensions Requested
-
Parsing FUSE file names can be daunting to the uninitiated.
For information on the FUSE file naming conventions and contents
see the table in Data Handbook,
Section 4.1: Data Filenames.
Hint: the project defines "rootname" with 11 characthers through the
exposure number (3 characters). As defined, this name not includes
the detector number & side (1a, 1b, 2a, 2b), observing mode, and data
product type.
Changes in Data Products in Recent Releases
Observations with an Archive Date later than March 2007 were processed
CalFUSE v3.2.
Observations with an Archive Date between October, 2005 and
March, 2007 were processed
CalFUSE v3.1.
Observations with an Archive Date between August 19, 2004 and September
2005 processed with
CalFUSE v3.0.
You can also authorize co-investigators and co-workers to have electronic access as well.
Just tell us the proposal ID and the names and archive usernames
of those to whom you wish to grant access.
(If they don't have accounts, or you're not sure if they do,
then let us know their email addresses to we can help them set up accounts for access.)
Authorization may be set up only on a per-proposal basis;
we cannot restrict access to certain data within the proposal.
Frequently Asked Questions about Retrievals
nnnn, why can't I retrieve the data?
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