Policies and Guidelines for Cycle 17 Phase II Program Preparation
To HST Observers: You are probably reading this because you have been
awarded time on HST for Cycle 17. Congratulations! Now comes "Phase II," the
time during which you transform your accepted Phase I proposal into a
computer-readable program containing the detailed information needed for
implementation and scheduling of your science program.
What you write in Phase II is essentially a high-level computer
program. The elements and syntax of the language you use are described
in the Phase II Proposal Instructions. We do not produce
paper copies of this document, but it is available on-line in PDF format.
Your browser should automatically open a PDF window when you click on
the link, but if not, you can obtain the Acrobat reader for free from
www.adobe.com. The Phase II Proposal Instructions
include a linked table of contents and an index.
You will be provided with Phase II support and information from STScI, much
of which has been recently updated. Whether or not you are an experienced HST
user, you should carefully review this package and the web pages on
"Resources for Users" before beginning to construct your Phase II program.
Getting Help
Each approved program has been assigned a Program Coordinator (PC) as identified in your acceptance letter from
the STScI Director. Your PC will contact you to introduce themselves and help
you get started with the Phase II process. He or she will provide you with
your Phase II submission deadline and discuss our policies for delayed
submissions and program changes. Please be sure to read this communication
carefully and discuss any questions you may have with your PC.
As in previous Cycles, supplementary support to European GOs is
available directly from the ST European Coordinating Facility (ECF) at
ESO-Garching, and likewise for Canadian GOs from the Canadian Astronomy
Data Center at DAO. For European GOs, the ECF contact name was
provided in the acceptance letter. While European and Canadian PIs
receive full PC support at STScI, they are invited to take
advantage of their local support groups.
Steps in Preparing and Submitting Your Phase II Program
- Note the TAC Allocation and Comments:
Read your notification letter, paying special attention to the approved
allocation of HST orbits, any instrument and/or target constraints, and
other mandatory or recommended changes.
- Read the Documentation:
All of our user documents are available on-line from the
HST Phase II Proposal Development
page, accessible via the World Wide Web. If you need additional documentation,
contact your Program Coordinator (PC). A great
deal of other interesting and useful information can be found by following
links on the STScI Home Page.
- Install the APT Software:
The Phase II release of APT will be available starting May 28, 2008 at http://www.stsci.edu/hst/proposing/apt.
APT is a new suite of software tools for devloping HST proposals. The May release is a new version for
Phase II proposals, and should be installed on your computer before beginning Phase II proposal development.
For installation help, contact help@stsci.edu.
- Prepare your Phase II File:
Using the new Phase II Proposal Instructions (Version 17)
and your copy of your submitted Phase I proposal, complete all information for the Phase II proposal and run the APT
software (including both the Orbit Planner and Visit Planner ). APT uses xml files as input and output.
One of the output products from this process will be an orbit-by-orbit
description of the program you have developed. Your Program Coordinator is
your primary contact for APT questions and we encourage user feedback and
suggestions on this software. Please review the general form and cover page
text sections of your Phase II proposal for accuracy. These sections should
be updated to reflect the current program contents. Be sure to insert the Phase II proposal
number that was provided in your original acceptance letter.
HST is a very complex observatory operating in low earth orbit. It is a
delicate spacecraft that must be operated within a great many scheduling,
pointing, orientation, solar power management, thermal, and other constraints.
APT has been designed to model this system to a level of detail
sufficient to allow the observer to create efficient, effective observing
proposals. You should expect to take a week or more to prepare your program.
Do not hesitate to contact your PC (or CS if applicable) if you have any
questions. We urge you to begin work on your program as early as you can.
The last week before the deadline can be a very frantic time for all concerned!
Please refer to The Guide to Obtaining Target Coordinates
for detailed instructions on measuring target coordinates for Phase II. This
is especially important when sub-arcsecond coordinate inaccuracies can degrade
an observation. The coordinates used to point HST need to be in Guide Star
Catalog frame. Ultimate responsibility for correct coordinates lies with
the observer.
All programs must accurately mirror the accepted portions of the Phase I
proposal. New targets, instruments or wavelength ranges cannot be introduced
without review and approval, nor can you submit a Phase II program that requires
more time than allocated. If you encounter a scientific need to make
such changes as a result of your Phase II work, you must contact your Program
Coordinator and provide a justification for the change. All major changes of
this nature also require Director's Office approval. Also, please contact your
PC if you have changed your mail or e-mail addresses.
- Submit your Phase II Program:
When you believe your APT Phase II proposal is complete and correct (i.e., the
program proves to be syntactically correct, within TAC allocation, error free and schedulable based
on the output from APT), submit your proposal using the APT submit tool in the graphical interface. As with previous steps, contact your PC if any problems
are encountered. Your PC is prepared to help you create an error free and
schedulable program if you encounter difficulties. For APT, the submitted file name does not
have to conform to a specific format. That will be done upon receipt at STScI.
Once a Phase II program has been submitted, you will receive an automatic
reply that it has been received at STScI. The PC will then verify that it is
error-free and within its allocation, the program will be considered "accepted," and
implementation work will start. Proposals with errors that can be fixed by the
PIs will be rejected and sent back for correction. Any programs that are more
than the TAC allocation or partially submitted will also be rejected and sent
back.
It is essential to submit a clean, correct and complete observing
programs before the submission deadline.
After You Submit Your Phase II Program:
- Program Implementation:
After submission, the PC will continue with the preparation and implementation of your program. Once
the Cycle 17 programs are initially processed, a Long Range Plan will be developed to provide planning
windows for each program visit. Your PC will review these planning windows and the structure and
content of your program visits with you as necessary during flight preparation.
- Target Confirmation Charts:
Your PC will generate confirmation charts of all applicable targets specified in your Phase II
proposal. The charts will be available on-line and you will be able to access them from the HST
Program Information page. You must verify the target pointing and inform your PC. (Confirmation
charts are not possible for generic parallel targets nor are they provided for SNAPshot targets.)
- Final PI Walkthrough:
When nearing the final stages of flight preparation, your PC will review your program one final time.
You will be sent information regarding the current version of your program, including identification
of significant changes that have been made and a review of your plan windows. For more complex
programs, a teleconference may be requested to walkthrough the details of this package with you. We
strongly encourage all PIs to actively participate in this phase. Failure to respond to the request to
review the final program within one week will be taken as approval to proceed with flight preparation.
- Program Scheduling and Monitoring:
Your PC (and CS if assigned one) will continue to monitor your program as it is scheduled and
executed, and will inform you of any difficulties. Do not hesitate to contact them if you have
questions or concerns. You can monitor the progress of your program and obtain information regarding
assigned Plan Windows via the HST Program Information web page.
- Making Changes to Your Phase II Program:
Once your Phase II program has been submitted and accepted, changes may only be made with
justification. First, contact your Program Coordinator and provide a description of the requested
change and the reasons for it. The PC is allowed to approve minor alterations (such as exposure time
adjustments or target coordinate updates). The PC may seek approval from the Contact Scientist or an
Instrument Scientist if the changes might alter the scientific goals of the program (such as new
targets, or different filters or observing modes). A change that is in conflict with the original TAC
decision (such as the number of orbits used, or the primary instrument used) should be submitted using
the Change Request Form and will be formally reviewed by the Telescope Time Review Board.
Justifiable changes can be accommodated up until approximately 4 weeks before the assigned Plan
Window opens, resources permitting. Please notify your PC (and CS if applicable) immediately if you
identify the need to change your program.
Policies for Phase II:
To maintain a high observing efficiency and to have a seamless transition between Cycle 16 and Cycle
17, we need to have clean (i.e., error free), complete Phase II programs. Also, to develop a reliable
Long Range Plan, all the Phase II programs have to be in the database, which makes it essential that
programs be submitted on time. The Phase II deadline for Cycle 17 is July 03, 2008.
Please note the following STScI policies concerning Phase II submissions:
- PIs are required to submit their Phase II programs ON TIME. Programs that are not submitted by the
deadline (July 03, 2008) are subject to forfeiture of the awarded orbits. Due to the shortened time between
the Phase II deadline and the start of Cycle 17, there will be no extensions granted for late submissions.
- Your submission is not complete until it has been accepted by your PC. To be accepted, Phase II
programs must be submitted with all expected targets listed and the total number of orbits required
must be at or below the program's allocation. Partial or incomplete programs are not acceptable. An
accepted program must be error free according to APT. In some cases we can accept a program with
errors, but only with the approval of the PC.
- Cycle 17 begins after servicing mission observatory verification and ends December 31, 2009. Programs designated as Cycle 17 may be executed outside of this time interval for a
number of reasons having to do with the inherent complexity of constructing HST's calendar of
observations. However, programs may not require that observations be done outside of this time
interval.
- Observers must use the Phase II Proposal Instructions and APT that have been prepared for
Cycle 17 in writing their Phase II programs. Older RPS2 proposals cannot be used! Many details of HST observing change each year as we improve and augment software, and it
is vital that the current Instructions be used.
- Target of Opportunity (ToO) observations may only be activated if they occur during the above
time interval for Cycle 17. ToO Visits expire at the end of the Cycle and will be removed from the HST
program. GOs must repropose for ongoing ToO observations.
- The manner in which SNAPshot programs are executed is described in a User Information Report
that is available at http://www.stsci.edu/hst/programs/uir.html.
Additional Recommendations:
- Observers should be aware that in most cases the duration of an individual visit in your
proposal should be three orbits or less (see Visit Size Recommendations for details). Please check the
updates for the instruments you are using.
- If you are having difficulties with your program or do not know how to correct your APT Phase
II file, please contact your PC and discuss the issue.
- Note that changes to programs once they are submitted should be strongly justified (e.g., you
need to correct an erroneous source position).
- We will check only for near-exact duplications with Guaranteed Time Observer programs and
programs for which the proprietary period has not expired. Since we will NOT be checking for
duplications with non-proprietary data, it is the PI's responsibility to check for duplications
against their own programs. If such duplications are found, and have not been justified in the Phase I
proposal, the PI will have to prove the need for the observations before they are accepted for
implementation.
- All accepted programs have been reviewed for technical feasibility and schedulability. The
results of the review have been stored in the database and the programs will be tracked.
Hard-to-schedule visits will be in the implementation pipeline for only one year. If these programs
have not been scheduled after a year, they may be removed from the visit pool. This will allow us to
limit the work spent on trying to implement unschedulable programs at the expense of other programs.
It is therefore VERY IMPORTANT that PIs discuss issues with their PC/CS and solve problems as soon as
possible.
- US investigators are reminded to submit their budgets by the budget submission deadline,
June 30, 2008 for paper submissions or July 03, 2008 for electronic submissions.
Please feel free to contact your PC if there is any help or
assistance you need.
Look for other information at the APT Frequently Asked Questions page
and the Resources for Observers page.
Meeting our goal of excellence in user service depends on receiving feedback from you. Our team at
STScI is excited about the prospects offered in Cycle 17 to advance toward that goal and we're ready
to help you complete the next step as an HST observer.
Denise Taylor (dctaylor@stsci.edu)
Last modified 20 May 2008
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