Late Breaking News
August 16, 2001
STIS Exposure Time Calculator Fixes and Enhancements
The STIS Exposure Time Calculators (ETCs) have been updated. The
updates are described in the "What's new" section of the ETC web
pages. Updates include an upward revision of the CCD readout noise to
reflect conditions operating on the side-2 electronics, and an upward
revision of the zodiacal background. The updates are potentially
important for those contemplating detector- or sky-background-limited
observations. Exposure times computed with the STIS ETC before 15
August 2001 should be verified using the updated version
of the simulator. We apologize for this inconvenience.
August 16, 2001
Clarification Regarding E/PO components for Treasury Programs
As stated in Sec
3.2.4 of the Call for Proposals, Treasury Programs are encouraged
to have an Education/Public Outreach component. However, a Phase I
Treasury Proposal need only summarize the planned E/PO component
briefly (typically, one paragraph at the end of the Scientific
Justification section). A detailed E/PO proposal should be submitted
by the later deadline of March 22, 2002, as described in Chapter
10 of the Call for Proposals. The HST Cycle 11 E/PO Grant
Program's Call for Proposals, to be released in the first week of
February 2002, will describe in detail the requirements for E/PO
components of Treasury Programs, and the available resources.
August 16, 2001
ACS Exposure Time Calculator Fixes and Enhancements
The ACS Exposure Time Calculator (ETC) has been updated. The updates
are described in the "What's new" section of the ETC web page. Updates
include more recent values of dark current and readout noise for the
CCDs and updated DQE for the HRC, and an upward revision of the
zodiacal background. The updates are potentially important for those
contemplating background-limited observations. Exposure times computed
with the ACS ETC before 15 August 2001 should be verified using the updated version
of the simulator. We apologize for this inconvenience.
August 2, 2001
Current Accuracies of Planetary System Ephemerides for STIS
Ephemeris accuracy can be the limiting factor for the size of slit
that can be used successfully for spectroscopic planetary system
observations that require an offset acquisition. STScI has just
acquired substantially more accurate ephemerides for the Galilean
satellites relative to Jupiter, which enable STIS to make more
accurate offset acquisitions using these satellites. For the
ephemeris accuracies of these and other planetary system targets, see
the July 2001 edition of the STIS
STAN.
July 24, 2001
HST publications and the STScI Library (erratum to Sec 9.12 of the Call for Proposals)
In order to maintain the accuracy and completeness of the HST
bibliography, authors of papers using data that have not previously
been published are asked to send either a preprint or a link to an
online version of the preprint to the ST ScI Librarian at library@stsci.edu or at the
Institute address (for paper preprints). Note that this requirement
includes both refereed and non-refereed publications, but *not*
abstracts or poster papers.
June 27, 2001
Advanced Camera for Surveys GTO Target List from PAEC File or Direct List Updated
Due to an error at STScI the correct list of protected targets for the
ACS GTO team was not in place when the Cycle 11 Call for Proposals was
released. The list now available (as of June 26, 2001) is correct,
and the procedures for using it are described in Sec
5.2 of the Call for Proposals.
Cycle 11 Announcement Page
Copyright
Notice
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Last updated: October 10, 2001