Phase II Roadmap for Cycle 25
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Table of Contents

HST Cycle 25 Phase II Proposal Instructions
Table of Contents
Part I:Phase II Proposal Writing
Chapter 1: About This Document
1.1 Document Design and Structure
1.2 Significant Changes Since the Previous Cycle
1.3 Document Presentation
1.4 Technical Content
1.5 Where to Find Additional Information
1.6 Some Pointers in PDF and APT JavaHelp
Chapter 2: The Basics of Phase II Proposals
2.1 How to Prepare and Submit Phase II Information
2.1.1 Astronomer’s Proposal Tool (APT)
2.1.2 Entering Information: The APT Graphical UseInterface (GUI) versus the Text Proposal File
2.1.3 APT Tools
2.1.4 Submitting Your Program
2.2 What to Submit
2.3 General Instructions
2.3.1 Proposal Information [Proposal_Information]
2.3.2 Proposal Description
2.3.3 Investigators
2.3.4 Target Information [Fixed_Targets, Solar_System_Targets, Generic_Targets]
2.3.5 Visit Information [Visits]
2.4 Examples and General Advice
2.4.1 Acquisitions and Pointings
2.4.2 Examples
2.4.3 Common Problems
2.4.4 Consideration of Limited Resources
2.5 Text Proposal File
2.5.1 Basic Syntax Rules
2.5.2 Sample Text Proposal File Template
Chapter 3: Fixed and Generic Targets
3.1 Target Identification
3.1.1 Target Number [Target_Number]
3.1.2 Target Name [Target_Name and Alternate_Names]
3.1.3 Target Category and Target Description [Description]
3.1.4 Target Extent [Extended] Required for COS observations only.
3.2 Target Coordinates
3.2.1 Required Accuracies of Target Positions
3.2.2 Target Position Type [Position]
3.2.3 Equatorial Coordinates
3.2.4 Positional Offsets
3.2.5 Region of Sky (Extended Targets)
3.2.6 Determining Coordinates in the Reference Frame Appropriate for HST Observations
3.2.7 Getting Coordinates from the GSC2 or DSS
3.2.8 Early Acquisitions
3.2.9 Equinox for Coordinates [Equinox]
3.2.10 Coordinate Reference Frame [Reference_Frame]
3.2.11 Is Proper Motion or Parallax Relevant?
3.3 Target Brightness and Bright Object Checking
3.3.1 Flux Data [Flux and Other_Fluxes]
3.3.2 Radial Velocity or Redshift [RV_ or _Z]
3.3.3 Bright-Object Constraints
3.4 Comments [Comments]
3.5 Generic Targets [Generic_Targets]
3.5.1 Target Number(s) [Target_Number]
3.5.2 Target Name [Target_Name]
3.5.3 Target Description [Description]
3.5.4 Flux Data [Flux]
3.5.5 Comments [Comments]
3.5.6 Generic Target Specifications [Criteria]
Chapter 4: Solar System Targets
4.1 Introduction
4.2 Target Identification
4.2.1 Target Number [Target_Number]
4.2.2 Target Name [Target_Name]
4.2.3 Target Description [Description]
4.2.4 Target Extent [Extended]:
4.3 Pointing HST - Target Position
4.3.1 Target Pointing Specification (TPS) and Levels
4.3.2 Target Position Level 1 [Level_1]
4.3.3 Target Position Level 2 [Level_2]
4.3.4 Target Position Level 3 [Level_3]
4.3.5 Ephemeris Center [Ephem_Center]
4.3.6 Ephemeris Uncertainty [Ephem_Uncert]
4.3.7 Acquisition Uncertainty [Acq_Uncert]
4.4 Observing Windows [Windows]
4.4.1 Default Target Windows
4.5 Flux Data [Flux and Other_Fluxes]
4.6 Comments [Comments]
4.7 Illustrations of Orbital Longitude
4.8 Examples of Target List Blocks
Chapter 5: Visits, Exposures and Exposure Groups
5.1 Visit Number and Status
5.2 Visit Label [Visit_Label]
5.3 Visit-level Special Requirements [Visit_Requirements]
5.4 On Hold Comments [On_Hold_Comments]
5.5 Visit Comments [Visit_Comments]
5.6 Exposure Number [Exposure_Number]
5.7 Exposure Label [Exposure_Label]
5.8 Target Name [Target_Name]
5.8.1 Astronomical Targets
5.8.2 Special Targets
5.9 Instrument Configuration [Config]
5.10 Operating Mode [Opmode]
5.11 Aperture or Field of View [Aperture]
5.12 Spectral Element [Sp_Element]
5.13 Central Wavelength or Range if Grating or Prism Used [Wavelength]
5.14 Number of Times to Iterate the Exposure [Number_of_Iterations]
5.15 Time per Exposure [Time_Per_Exposure­]
5.16 Exposure-level Comments [Comments]
5.17 Optional Parameters [Optional_Parameters]
5.18 Exposure-level Special Requirements[Special_Requirements]
5.19 Exposure Containers: Exposure Sequences, Coordinated Parallels and Patterns
5.20 Subexposures
5.20.1 Actual_Duration
5.20.2 Orbit_Number
Chapter 6: Parallel Science Exposures
6.1 Parallel Science Limitations
6.2 Pure Parallels
6.3 Coordinated Parallel Containers
6.3.1 Instrument Configuration
6.3.2 Targets
6.3.3 Special Requirements
6.3.4 Optional Parameters
6.3.5 Ordering Restrictions and Interpretations
6.3.6 Efficiency Considerations
Chapter 7: Special Requirements[Visit and Exposure Special_Requirements]
7.1 Introduction to Special Requirements: Syntax and Rules
7.2 Visit-level Special Requirements
7.2.1 Guiding
7.2.2 Target Orientation
7.2.3 Special Observation Requirements
7.2.4 Timing Requirements
7.2.5 Conditional Requirements
7.3 Exposure-level Special Requirements
7.3.1 Target Acquisition
7.3.2 Target Position
7.3.3 Special Observation Requirements
7.3.4 Special Communications Requirements
7.3.5 Timing Requirements
Chapter 8: Pointings and Patterns
8.1 Pointing the Telescope
8.2 Introduction to Patterns
8.2.1 APT User Interface
8.2.2 Text Proposal File
8.3 How to Fill Out the Pattern Parameters Form
8.3.1 Pattern Parameters
8.4 Convenience Patterns
8.4.1 STIS Patterns
8.4.2 ACS Patterns
8.4.3 WFC3 Patterns
8.4.4 COS Patterns
Part II: Supported Science Instruments
Chapter 9: Space Telescope Imaging Spectrograph (STIS)
9.1 Introduction to STIS
ACQUISITION MODES
9.2 Mode = ACQConfig = STIS/CCD
9.2.1 Aperture or FOV
9.2.2 Spectral Element
9.2.3 Optional Parameters
9.2.4 Number of Iterations
9.2.5 Time Per Exposure
9.2.6 Special Requirements
9.3 Mode = ACQ/PEAKConfig = STIS/CCD
9.3.1 Aperture or FOV
9.3.2 Spectral Element
9.3.3 Optional Parameters
9.3.4 Number of Iterations
9.3.5 Time Per Exposure
9.3.6 Special Requirements
IMAGING AND SPECTROSCOPIC MODES
9.4 Mode = ACCUM Config = STIS/CCD
9.4.1 Aperture or FOV
9.4.2 Spectral Element
9.4.3 Wavelength
9.4.4 Optional Parameters
9.4.5 Number of Iterations and Time Per Exposure
9.5 Mode = ACCUMConfig = STIS/FUV–MAMA,Config = STIS/NUV–MAMA
9.5.1 Aperture or FOV
9.5.2 Supported Spectral Elements
9.5.3 Wavelength
9.5.4 Optional Parameters
9.5.5 Number of Iterations and Time Per Exposure
9.6 Mode = TIME–TAGConfig = STIS/FUV–MAMA,Config = STIS/NUV–MAMA
9.6.1 Aperture or FOV
9.6.2 Spectral Element
9.6.3 Wavelength
9.6.4 Optional Parameters
9.6.5 Number of Iterations and Time Per Exposure
9.6.6 Special Requirements
REFERENCE INFORMATION
9.7 STIS Central Wavelengths
9.8 STIS Internal Calibration Targets
9.8.1 Target_Name = WAVE
9.8.2 Target_Name = CCDFLAT
9.9 STIS Coordinate System
9.10 The Official STIS Aperture List for Cycle 25
Chapter 10: Fine Guidance Sensors (FGS)
10.1 Introduction to the FGS
10.2 Mode = POSConfig = FGS
10.2.1 Aperture or FOV1, 2, 3
10.2.2 Spectral Element
10.2.3 Optional Parameters
10.2.4 Special Requirements
10.2.5 Time Per Exposure
10.3 Mode = TRANSConfig = FGS
10.3.1 Aperture or FOV 1, 2, 3
10.3.2 Spectral Element
10.3.3 Optional Parameters
10.3.4 Time Per Exposure
10.3.5 Special Requirements
10.4 Tables and Illustrations
Chapter 11: Advanced Camerafor Surveys (ACS)
11.1 Introduction to the ACS
11.2 Mode = ACCUM Config = ACS/WFC
11.2.1 Aperture or FOV
11.2.2 Spectral Element
11.2.3 Wavelength
11.2.4 Optional Parameters
11.2.5 Number of Iterations
11.2.6 Time Per Exposure
11.3 Mode = ACCUMConfig = ACS/SBC
11.3.1 Aperture or FOV
11.3.2 Spectral Element
11.3.3 Wavelength
11.3.4 Optional Parameters
11.3.5 Number of Iterations
11.3.6 Time Per Exposure
11.4 Tabular Reference Data
11.4.1 Spectral Elements for WFC
11.4.2 Permitted Filter Combinations
11.4.3 Ramp Filter Wavelength Ranges
11.4.4 Spectral Elements for ACS/SBC
11.4.5 Allowed Combinations of Aperture, Spectral Element & Readout
11.5 ACS Aperture Coordinate System
Chapter 12: Cosmic OriginsSpectrograph (COS)
12.1 Introduction to COS
ACQUISITION MODES
12.2 Mode = ACQ/SEARCHConfig = COS/FUV
12.2.1 Aperture or FOV
12.2.2 Spectral Element
12.2.3 Wavelength
12.2.4 Optional Parameters
12.2.5 Number of Iterations
12.2.6 Time Per Exposure
12.2.7 Special Requirements
12.3 Mode = ACQ/PEAKXDConfig = COS/FUV
12.3.1 Aperture or FOV
12.3.2 Spectral Element
12.3.3 Wavelength
12.3.4 Optional Parameters
12.3.5 Number of Iterations
12.3.6 Time Per Exposure
12.3.7 Special Requirements
12.4 Mode = ACQ/PEAKDConfig = COS/FUV
12.4.1 Aperture or FOV
12.4.2 Spectral Element
12.4.3 Wavelength
12.4.4 Optional Parameters
12.4.5 Number of Iterations
12.4.6 Time Per Exposure
12.4.7 Special Requirements
12.5 Mode = ACQ/SEARCHConfig = COS/NUV
12.5.1 Aperture or FOV
12.5.2 Spectral Element
12.5.3 Wavelength
12.5.4 Optional Parameters
12.5.5 Number of Iterations
12.5.6 Time Per Exposure
12.5.7 Special Requirements
12.6 Mode = ACQ/IMAGEConfig = COS/NUV
12.6.1 Aperture or FOV
12.6.2 Spectral Element
12.6.3 Wavelength
12.6.4 Optional Parameters
12.6.5 Number of Iterations
12.6.6 Time Per Exposure
12.6.7 Special Requirements
12.7 Mode = ACQ/PEAKXDConfig = COS/NUV
12.7.1 Aperture or FOV
12.7.2 Spectral Element
12.7.3 Wavelength
12.7.4 Optional Parameters
12.7.5 Number of Iterations
12.7.6 Time Per Exposure
12.7.7 Special Requirements
12.8 Mode = ACQ/PEAKDConfig = COS/NUV
12.8.1 Aperture or FOV
12.8.2 Spectral Element
12.8.3 Wavelength
12.8.4 Optional Parameters
12.8.5 Number of Iterations
12.8.6 Time Per Exposure
12.8.7 Special Requirements
OBSERVING MODES
12.9 Mode = TIME-TAGConfig = COS/FUV
12.9.1 Aperture or FOV
12.9.2 Spectral Element
12.9.3 Wavelength
12.9.4 Optional Parameters
12.9.5 Number_Of_Iterations
12.9.6 Time Per Exposure
12.9.7 Special Requirements
12.10 Mode = ACCUMConfig = COS/FUV
12.10.1 Aperture or FOV
12.10.2 Spectral Element
12.10.3 Wavelength
12.10.4 Optional Parameters
12.10.5 .Number of Iterations
12.10.6 Time Per Exposure
12.11 Mode = TIME-TAGConfig = COS/NUV
12.11.1 Aperture or FOV
12.11.2 Spectral Element
12.11.3 Wavelength
12.11.4 Optional Parameters
12.11.5 Number of Iterations
12.11.6 Time Per Exposure
12.11.7 Special Requirements
12.12 Mode = ACCUMConfig = COS/NUV
12.12.1 Aperture or FOV
12.12.2 Spectral Element
12.12.3 Wavelength
12.12.4 Optional Parameters
12.12.5 Number of Iterations
12.12.6 Time Per Exposure
REFERENCE INFORMATION
12.13 COS Apertures
12.14 COS Spectral Elements and Central Wavelengths
12.15 COS Internal Calibration Targets
12.16 WAVECAL Exposure Parameters
12.17 COS Coordinate System
Chapter 13: Wide Field Camera 3(WFC3)
13.1 Introduction to WFC3
13.2 Mode = ACCUMConfig = WFC3/UVIS
13.2.1 Aperture or FOV
13.2.2 Spectral Elements
13.2.3 Wavelength
13.2.4 Optional Parameters
13.2.5 Number of Iterations and Time Per Exposure
13.2.6 Special Requirements
13.3 Mode = MULTIACCUMConfig = WFC3/IR
13.3.1 Aperture or FOV
13.3.2 Spectral Elements
13.3.3 Wavelength
13.3.4 Optional Parameters
13.3.5 Number of Iterations
13.3.6 Time Per Exposure
13.3.7 Special Requirements
13.4 Tabular Reference Data
13.4.1 Spectral Elements for WFC3/UVIS
13.4.2 Spectral Elements for WFC3/IR
13.5 WFC3 Aperture Coordinate System
Index

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