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Handling of Proprietary Chandra Data
PI and CoI, Observer
Associated with each proposal is a Principal Investigator (PI)
and, optionally, a Co-Investigator/Observer (CoI/O). If there is no
CoI/O, the PI is the Observer.
The Observer is the person who is responsible for the observation
parameters and with whom User Support works to ensure a correct
observation specification.
E-mail notification of the data being ready for download is sent to
the PI and the CoI/O. If hard medium distribution is requested, the
medium is sent to the PI.
Change of CoI/O: a request for changing the CoI/O has to come from the
PI by e-mail and be directed to the Director's Office at:
cdo@head.cfa.harvard.edu.
Note that a CoI/O can only be assigned per proposal, not on the basis
of an individual ObsId.
Procedures and Policies
Proprietary data are distributed through
WebChaSeR
and on physical media.
Data products generated by Automated Processing first have to go
through Verification and Validation.
The Principal Investigator and the Co-Investigator/Observer will
then be notified that the data
are available through WebChaSeR; at the same time a copy is made on
physical medium, if requested, that is mailed to the PI only.
Products generated by Custom Processing also go through V&V but are
only distributed through the ftp site.
In all cases the tar file contains a Standard Data Distribution.
Access to proprietary data (i.e., the proprietary products associated
with proprietary observations) is restricted to two accounts: a PI
account (that provides access to all proprietary observations of the
PI) and a proposal account (that provides access to all proprietary
data associated with a particular proposal and that the PI may want
to share with collaborators). The Data Distribution e-mail
notification contains a reminder about the latter account.
The staging procedures for data retrieved from the CDA include the use
of hidden directories to protect the potentially proprietary nature of
the data. This mechanism is effective but requires the user to enter
the full path or URL, rather than meandering through the ftp directory
structure. The only situation where this might cause a problem is
when users employ Safari as their web browser; we recommend
switching web browsers in that case.
This page is maintained by the Chandra Data Archive Operations
group
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