! Hubble Space Telescope Cycle 6 (1996) Phase II Proposal Template ! ID: 6931 Proposal_Information Title: Exploratory Focus Monitoring Test Proposal_Category: CAL/FOC Scientific_Category: ! Uncomment one of the following ! AGN ! Cool Stars ! Galaxies & Clusters ! Hot Stars ! Interstellar Medium ! Quasars ! Solar System ! Stellar Populations Cycle: 6 Investigators PI_Name: R. Jedrzejewski PI_Institution: STSCI CoI_Name: A. Nota ! Repeat as often as necessary CoI_Institution: STSCI Contact: N CoI_Name: M. Voit ! Repeat as often as necessary CoI_Institution: STSCI Contact: N CoI_Name: W. Hack ! Repeat as often as necessary CoI_Institution: STSCI Contact: N Abstract: ! Free format text (clear and concise) Determination of the focus of the FOC is difficult because of the lack of aberrations. For small focus errors, it is very difficult to determine the sign of any focus error. We propose to use the field dependent astigmatism to remove this degeneracy. We will perform a fine focus sweep by moving the DOB to -1mm, -0.5mm, 0.0, +0.5mm, +1mm from nominal, and take images of a star using the F486N filter and placing the star in newly-defined apertures that are close to the edges of the field, where the field-dependent astigmatism is greatest. The appearance of the star as a function of focus will be unique, and this will allow an unambiguous determination of the focus. Before this program can be run, new apertures must be defined with size 256x256, SAMPOFF=0 and SAMPOFF=768, and LINEOFF=384. Questions ! Free format text (clear and concise) Observing_Description: Use of the 256x256 formats will require an INT ACQ to place the target at the proper position. For each DOB setting, the star will be imaged with the 256x256-L, 256x256-R and 256x256 formats. Three INTFLATs will precede the external observations to provide information of the relative positions of the new apertures relative to the full format. Real_Time_Justification: A Mode I Target Acquisition is necessary to place the star in the center of the 256x256 formats. Calibration_Justification: The current method of monitoring focus has been found to be somewhat ambiguous, particularly with regard to the sign of any focus error. Additional_Comments: Fixed_Targets ! Section 5.1 Target_Number: 1 Target_Name: BPM16274 Alternate_Names: Description: Calibration;Photometric Position: RA=00H 50M 3.18S +/- 0.1S, DEC=-52D 08' 17.4" +/- 0.5", PLATE-ID=009H Equinox: J2000 RV_or_Z: RA_PM: ! Units are seconds of time per year Dec_PM: ! Units are seconds of arc per year Epoch: Annual_Parallax: Flux: V=14.2 ! Include at least V and B-V Comments: ! This is a template for a single visit containing a single exposure ! Repeat exposure and visit blocks as needed Visits ! Section 6 Visit_Number: 1 Visit_Requirements: ! Section 7.1 Exposure_Number: 1 ! Section 6.5 Target_Name: INTFLAT Config: FOC/96 Opmode: RESEAU Aperture: 512X1024 Sp_Element: CLEAR Wavelength: Optional_Parameters: PIXEL=50X25, LED=GREEN-2, LED-STEP=34 Number_of_Iterations: 1 Time_Per_Exposure: 10M Special_Requirements: ! Section 7.2 Exposure_Number: 2 ! Section 6.5 Target_Name: INTFLAT Config: FOC/96 Opmode: RESEAU Aperture: 256X256-FL Sp_Element: CLEAR Wavelength: Optional_Parameters: LED=GREEN-2, LED-STEP=94 Number_of_Iterations: 1 Time_Per_Exposure: 10M Special_Requirements: ! Section 7.2 Exposure_Number: 3 ! Section 6.5 Target_Name: INTFLAT Config: FOC/96 Opmode: RESEAU Aperture: 256X256-FR Sp_Element: CLEAR Wavelength: Optional_Parameters: LED=GREEN-2, LED-STEP=94 Number_of_Iterations: 1 Time_Per_Exposure: 10M Special_Requirements: ! Section 7.2 Visit_Number: 2 Visit_Requirements: AFTER 1 BY 45D ! Section 7.1 Exposure_Number: 10 ! Section 6.5 Target_Name: BPM16274 Config: FOC/96 Opmode: ACQ Aperture: 512X1024 Sp_Element: F486N Wavelength: Optional_Parameters: PIXEL=50X25 Number_of_Iterations: 1 Time_Per_Exposure: 300S Special_Requirements: INT ACQ FOR 20 ! Section 7.2 Exposure_Number: 20 ! Section 6.5 Target_Name: BPM16274 Config: FOC/96 Opmode: IMAGE Aperture: 256X256 Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 500S Special_Requirements: ! Section 7. Exposure_Number: 25 ! Section 6.5 Target_Name: INTFLAT Config: FOC/96 Opmode: RESEAU Aperture: 512X1024 Sp_Element: CLEAR Wavelength: Optional_Parameters: PIXEL=50X25, LED=GREEN-2, LED-STEP=34 Number_of_Iterations: 1 Time_Per_Exposure: 10M Special_Requirements: ! Section 7.2 Exposure_Number: 26 ! Section 6.5 Target_Name: DARK Config: FOC/96 Opmode: IMAGE Aperture: 512X512 Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 700s Special_Requirements: ! Section 7.2 Exposure_Number: 28 Target_Name: NONE Config: COSTAR Opmode: DOB Aperture: Sp_Element: Wavelength: Optional_Parameters: FOCUS=-55 Number_of_Iterations: 1 Time_Per_Exposure: 0.0s Special_Requirements: ! Section 7.2 Exposure_Number: 30 ! Section 6.5 Target_Name: BPM16274 Config: FOC/96 Opmode: IMAGE Aperture: 256X256 Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 780S Special_Requirements: SEQ 30-32 NON-INT ! Section 7.2 Exposure_Number: 31 ! Section 6.5 Target_Name: BPM16274 Config: FOC/96 Opmode: IMAGE Aperture: 256X256-FL Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 780S Special_Requirements: ! Section 7.2 Exposure_Number: 32 ! Section 6.5 Target_Name: BPM16274 Config: FOC/96 Opmode: IMAGE Aperture: 256X256-FR Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 780S Special_Requirements: ! Section 7.2 Exposure_Number: 35 ! Section 6.5 Target_Name: INTFLAT Config: FOC/96 Opmode: RESEAU Aperture: 512X1024 Sp_Element: CLEAR Wavelength: Optional_Parameters: PIXEL=50X25, LED=GREEN-2, LED-STEP=33 Number_of_Iterations: 1 Time_Per_Exposure: 10M Special_Requirements: ! Section 7.2 Exposure_Number: 36 ! Section 6.5 Target_Name: DARK Config: FOC/96 Opmode: IMAGE Aperture: 512X512 Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 700s Special_Requirements: ! Section 7.2 Exposure_Number: 38 ! Section 6.5 Target_Name: NONE Config: COSTAR Opmode: DOB Aperture: Sp_Element: Wavelength: Optional_Parameters: FOCUS=-27 Number_of_Iterations: 1 Time_Per_Exposure: 0.0s Special_Requirements: ! Section 7.2 Exposure_Number: 40 ! Section 6.5 Target_Name: BPM16274 Config: FOC/96 Opmode: IMAGE Aperture: 256X256 Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 780S Special_Requirements: SEQ 40-42 NON-INT ! Section 7.2 Exposure_Number: 41 ! Section 6.5 Target_Name: BPM16274 Config: FOC/96 Opmode: IMAGE Aperture: 256X256-FL Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 780S Special_Requirements: ! Section 7.2 Exposure_Number: 42 ! Section 6.5 Target_Name: BPM16274 Config: FOC/96 Opmode: IMAGE Aperture: 256X256-FR Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 780S Special_Requirements: ! Section 7.2 Exposure_Number: 45 ! Section 6.5 Target_Name: INTFLAT Config: FOC/96 Opmode: RESEAU Aperture: 512X1024 Sp_Element: CLEAR Wavelength: Optional_Parameters: PIXEL=50X25, LED=GREEN-2, LED-STEP=44 Number_of_Iterations: 1 Time_Per_Exposure: 10M Special_Requirements: ! Section 7.2 Exposure_Number: 46 ! Section 6.5 Target_Name: DARK Config: FOC/96 Opmode: IMAGE Aperture: 512X512 Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 700s Special_Requirements: ! Section 7.2 Exposure_Number: 48 ! Section 6.5 Target_Name: NONE Config: COSTAR Opmode: DOB Aperture: Sp_Element: Wavelength: Optional_Parameters: FOCUS=0 Number_of_Iterations: 1 Time_Per_Exposure: 0.0s Special_Requirements: ! Section 7.2 Exposure_Number: 50 ! Section 6.5 Target_Name: BPM16274 Config: FOC/96 Opmode: IMAGE Aperture: 256X256 Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 780S Special_Requirements: SEQ 50-52 NON-INT ! Section 7.2 Exposure_Number: 51 ! Section 6.5 Target_Name: BPM16274 Config: FOC/96 Opmode: IMAGE Aperture: 256X256-FL Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 780S Special_Requirements: ! Section 7.2 Exposure_Number: 52 ! Section 6.5 Target_Name: BPM16274 Config: FOC/96 Opmode: IMAGE Aperture: 256X256-FR Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 780S Special_Requirements: ! Section 7.2 Exposure_Number: 55 ! Section 6.5 Target_Name: INTFLAT Config: FOC/96 Opmode: RESEAU Aperture: 512X1024 Sp_Element: CLEAR Wavelength: Optional_Parameters: PIXEL=50X25, LED=GREEN-2, LED-STEP=35 Number_of_Iterations: 1 Time_Per_Exposure: 10M Special_Requirements: ! Section 7.2 Exposure_Number: 56 ! Section 6.5 Target_Name: DARK Config: FOC/96 Opmode: IMAGE Aperture: 512X512 Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 700s Special_Requirements: ! Section 7.2 Exposure_Number: 58 ! Section 6.5 Target_Name: NONE Config: COSTAR Opmode: DOB Aperture: Sp_Element: Wavelength: Optional_Parameters: FOCUS=31 Number_of_Iterations: 1 Time_Per_Exposure: 0.0s Special_Requirements: ! Section 7.2 Exposure_Number: 60 ! Section 6.5 Target_Name: BPM16274 Config: FOC/96 Opmode: IMAGE Aperture: 256X256 Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 780S Special_Requirements: SEQ 60-62 NON-INT ! Section 7.2 Exposure_Number: 61 ! Section 6.5 Target_Name: BPM16274 Config: FOC/96 Opmode: IMAGE Aperture: 256X256-FL Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 780S Special_Requirements: ! Section 7.2 Exposure_Number: 62 ! Section 6.5 Target_Name: BPM16274 Config: FOC/96 Opmode: IMAGE Aperture: 256X256-FR Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 780S Special_Requirements: ! Section 7.2 Exposure_Number: 65 ! Section 6.5 Target_Name: INTFLAT Config: FOC/96 Opmode: RESEAU Aperture: 512X1024 Sp_Element: CLEAR Wavelength: Optional_Parameters: PIXEL=50X25, LED=GREEN-2, LED-STEP=33 Number_of_Iterations: 1 Time_Per_Exposure: 10M Special_Requirements: ! Section 7.2 Exposure_Number: 66 ! Section 6.5 Target_Name: DARK Config: FOC/96 Opmode: IMAGE Aperture: 512X512 Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 700s Special_Requirements: ! Section 7.2 Exposure_Number: 68 ! Section 6.5 Target_Name: NONE Config: COSTAR Opmode: DOB Aperture: Sp_Element: Wavelength: Optional_Parameters: FOCUS=63 Number_of_Iterations: 1 Time_Per_Exposure: 0.0s Special_Requirements: ! Section 7.2 Exposure_Number: 70 ! Section 6.5 Target_Name: BPM16274 Config: FOC/96 Opmode: IMAGE Aperture: 256X256 Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 700S Special_Requirements: SEQ 70-72 NON-INT ! Section 7.2 Exposure_Number: 71 ! Section 6.5 Target_Name: BPM16274 Config: FOC/96 Opmode: IMAGE Aperture: 256X256-FL Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 700S Special_Requirements: ! Section 7.2 Exposure_Number: 72 ! Section 6.5 Target_Name: BPM16274 Config: FOC/96 Opmode: IMAGE Aperture: 256X256-FR Sp_Element: F486N Wavelength: Optional_Parameters: Number_of_Iterations: 1 Time_Per_Exposure: 700S Special_Requirements: ! Section 7.2 Data_Distribution ! Defaults indicated; change if desired Medium: 8MM ! 8MM or 6250BPI or 1600BPI Blocking_Factor: 10 ! 10 or 1 ! Only astronomers with very old 9- ! track tape drives should consider ! a blocking factor of 1 Ship_To: STSCI ! STSCI or PI_Address or Ship_Via: UPS ! UPS (2-day) or OVERNIGHT ! Overnight shipping done at PI expense Recipient_Email: ! Needed if Ship_To: is not PI_Address !