Page 1 PROPOSAL FOR HUBBLE SPACE TELESCOPE OBSERVATIONS ST ScI Use Only ID 3923c Report Date: 09-May-96:18:56 Version: ********** Check-in Date: ********** 1.Proposal Title: FOS CYCLE-1 FOCUS, X-PITCH, AND Y-PITCH ------------------------------------------------------------------------------------ 2. Scientific Category 3. Proposal For 4. Proposal Type 5. Continuation ID CAL/FOS Sub Category ------------------------------------------------------------------------------------ 6. Principal Investigator Institution Country Telephone John Fitch SPACE TEL. SCIENCE INSTITUTE USA (301) 338-4493 INSTRUMENT ENGINEER ------------------------------------------------------------------------------------ 7. Abstract After warm-up to the nominal high voltage, the trim current is set to zero, and the HV is set to a lower value. Spectra are then obtained with the 0.1-PAIR aperture, G190H, and the Pt-Ne lamp. The high-voltage is then varied in 200 volt increments +/ - 600 volts from the nominal setting with spectra taken at each setting. This will allow for optimal focus determination. Once a optimal HV setting is determined and updates made to the PDB, a series of spectra at three different X-Bases will be made to determine the corresponding X-Pitch. Additionally, measurements with the TALEDs through the 0.1-Pair aperture will be used to determine Y-Pitch. This program will result in an instruction flow change to the detector high voltage setting, the x- pitch value, the y-pitch value. ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ 9. Est obs time (hours) pri: 0 par: 0 10. Num targs pri: 0 par: 0 ------------------------------------------------------------------------------------ 11. Instruments requested: FOS ------------------------------------------------------------------------------------ ------------------------------------------------------------------------------------ Page 2 I. GENERAL FORM Proposal 3923c PI: John Fitch Proposal Title: FOS CYCLE-1 FOCUS, X-PITCH, AND Y-PITCH ------------------------------------------------------------------------------------ 1. Proposers: Proposers Institution Country ESA ------------------------------------------------------------------------------------ John Fitch SPACE TELESCOPE SCIENCE USA INSTITUTE ------------------------------------------------------------------------------------ 2. Scientific Justification. See Abstract. ------------------------------------------------------------------------------------ 3. Description of proposed observations. After high voltage warm-up, set the trim current to zero, and the detector HV to 22.66 (blue) or 21.6 (red). Obtain a spectra with the following configuration: .......0.1-PAIR lower aperture .......grating G190H .......8 x-steps 1 y-step .......Pt-Ne lamp/ direct Increase the HV by 200V, wait 1 minute, and repeat the observations as above. Continue to increase the HV for 6 steps until the maximum voltage is 23.86 (blue) or 22.8 (red). These observations MUST occur during non- SAA impacted orbits. ------------------------------------------------------------------------------------ 5. Description of special scheduling requirements. Once an optimum HV setting is determined from the procedure described above, and updated to the PDB, a series of exposures are required to calculate the new X- Pitch and Y-Pitch values for the optimal HV setting. Obtain a series of three spectra with the following configuration: .....0.1-PAIR lower aperture .....grating G190H .....8 x-steps 1 y-step .....Pt-Ne lamp/direct at three differnt X-BASEs. Then obtain a map of the photocathode with the following configuration: .....0.1-PAIR lower aperture .....camera mirror .....1 x-step 85 y -step .....TALED These observations MUST occur during non-SAA impacted orbits. ------------------------------------------------------------------------------------ 6. Description of special calibration exposures. This test is not stray light sensitive. All observations are internal Pt-Ne and TALED lamp measurements. ------------------------------------------------------------------------------------ 7. Data reduction and analysis plans. Data reduction will be performed at the ST ScI. This program will determine the correct detector high voltage, x-pitch, and y-pitch values to be used in obtaining data, and this information will need to be updated after any change is measured. ------------------------------------------------------------------------------------ 11. Address Information Name: JOHN FITCH Category: PI Institution: SPACE TELESCOPE SCIENCE INSTITUTE Address: 3700 SAN MARTIN DRIVE City: BALTIMORE State: MD Zip Code: 21218 Country: USA Telephone: Telex (or e-mail): ------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 3923c [ 3] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 1 DEFINE DARK S/C POINTIN V1 1 60S 1 WAIT G Comments: A 1 MINUTE WAIT FOR STABILITY. ------------------------------------------------------------------------------------------------------------------------------------ 2 DEFINE DARK S/C POINTIN V1 1 100S 1 HVSET G Comments: SET THE HV DAC. ------------------------------------------------------------------------------------------------------------------------------------ 3 DEFINE DARK S/C POINTIN V1 1 1S 1 TRIM G Comments: SET THE TRIM CURRENT. ------------------------------------------------------------------------------------------------------------------------------------ 4 DEFINE WAVE FOS/RD IMAGE 0.1- G190H SUB-STEP=8 1 480S 1 SPECTRA PAIR-B Y-SIZE=1 R X=0 COMB=YES Comments: NORMAL X-BASE. ------------------------------------------------------------------------------------------------------------------------------------ 5 DEFINE WAVE FOS/BL IMAGE 0.1- G190H SUB-STEP=8 1 480S 1 SPECTRA PAIR-B Y-SIZE=1 B X=0 COMB=YES Comments: NORMAL X-BASE. ------------------------------------------------------------------------------------------------------------------------------------ 6 DEFINE WAVE FOS/RD IMAGE 0.1- G190H SUB-STEP=8 1 480S 1 PITCHR PAIR-B Y-SIZE=1 X=0 COMB=YES Comments: NORMAL X-BASE. ------------------------------------------------------------------------------------------------------------------------------------ 6.1 DEFINE WAVE FOS/RD IMAGE 0.1- G190H SUB-STEP=8 1 48S 1 PITCHR PAIR-B Y-SIZE=1 X=-512 COMB=YES Comments: OFF-NORMAL X-BASE 1. THE IMAGE SHOULD SHIFT BY +/-16 DIODES (128 PIXELS). ------------------------------------------------------------------------------------------------------------------------------------ 6.2 DEFINE WAVE FOS/RD IMAGE 0.1- G190H SUB-STEP=8 1 48S 1 PITCHR PAIR-B Y-SIZE=1 X=+512 COMB=YES Comments: OFF-NORMAL X-BASE 2. THE IMAGE SHOULD SHIFT BY +/-16 DIODES (128 PIXELS). ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 3923c [ 4] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 6.3 DEFINE TALED FOS/RD IMAGE 0.1- MIRROR SUB-STEP=4 1 1700S 1 PITCHR PAIR-B Y-SIZE=85 Y-SPACE=10.54 COMB=YES Y-OFFSET=+253 Comments: Y-PITCH MEASUREMENT. IMAGE CENTER AT MIDPOINT BETWEEN -A AND -B APERTURES. ------------------------------------------------------------------------------------------------------------------------------------ 6.5 DEFINE WAVE FOS/BL IMAGE 0.1- G190H SUB-STEP=8 1 480S 1 PITCHB PAIR-B Y-SIZE=1 X=0 COMB=YES Comments: NORMAL X-BASE. ------------------------------------------------------------------------------------------------------------------------------------ 6.6 DEFINE WAVE FOS/BL IMAGE 0.1- G190H SUB-STEP=8 1 48S 1 PITCHB PAIR-B Y-SIZE=1 X=-512 COMB=YES Comments: OFF-NORMAL X-BASE 1. THE IMAGE SHOULD SHIFT BY +/-16 DIODES (128 PIXELS). ------------------------------------------------------------------------------------------------------------------------------------ 6.7 DEFINE WAVE FOS/BL IMAGE 0.1- G190H SUB-STEP=8 1 48S 1 PITCHB PAIR-B Y-SIZE=1 X=+512 COMB=YES Comments: OFF-NORMAL X-BASE 2. THE IMAGE SHOULD SHIFT BY +/-16 DIODES (128 PIXELS). ------------------------------------------------------------------------------------------------------------------------------------ 6.8 DEFINE TALED FOS/BL IMAGE 0.1- MIRROR SUB-STEP=4 1 1700S 1 PITCHB PAIR-B Y-SIZE=85 Y-SPACE=10.54 COMB=YES Y-OFFSET=+253 Comments: Y-PITCH MEASUREMENT. IMAGE CENTER AT MIDPOINT BETWEEN -A AND -B APERTURES. ------------------------------------------------------------------------------------------------------------------------------------ 7 USE SEQ 7-25.3 WITHIN HVSET 48H CYCLE 1 / 7-46 Comments: SET HV DAC TO 21.6KV. ------------------------------------------------------------------------------------------------------------------------------------ 8 USE WAIT ------------------------------------------------------------------------------------------------------------------------------------ 9 USE TRIM Comments: SET TRIM CURRENT TO 129 (0 MA). ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 3923c [ 5] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 10 USE SPECTRA R ------------------------------------------------------------------------------------------------------------------------------------ 11 USE HVSET Comments: SET HV DAC TO 21.8KV. ------------------------------------------------------------------------------------------------------------------------------------ 12 USE WAIT ------------------------------------------------------------------------------------------------------------------------------------ 13 USE SPECTRA R ------------------------------------------------------------------------------------------------------------------------------------ 14 USE HVSET Comments: SET HV DAC TO 22.0KV. ------------------------------------------------------------------------------------------------------------------------------------ 15 USE WAIT ------------------------------------------------------------------------------------------------------------------------------------ 16 USE SPECTRA R ------------------------------------------------------------------------------------------------------------------------------------ 17 USE HVSET Comments: SET HV DAC TO 22.2KV. ------------------------------------------------------------------------------------------------------------------------------------ 18 USE WAIT ------------------------------------------------------------------------------------------------------------------------------------ 19 USE SPECTRA R ------------------------------------------------------------------------------------------------------------------------------------ 20 USE HVSET Comments: SET HV DAC TO 22.4KV. ------------------------------------------------------------------------------------------------------------------------------------ 21 USE WAIT ------------------------------------------------------------------------------------------------------------------------------------ 22 USE SPECTRA R ------------------------------------------------------------------------------------------------------------------------------------ 23 USE HVSET Comments: SET HV DAC TO 22.6KV. ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 3923c [ 6] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 24 USE WAIT ------------------------------------------------------------------------------------------------------------------------------------ 25 USE SPECTRA R ------------------------------------------------------------------------------------------------------------------------------------ 25.1 USE HVSET Comments: SET HV DAC TO 22.8KV. ------------------------------------------------------------------------------------------------------------------------------------ 25.2 USE WAIT ------------------------------------------------------------------------------------------------------------------------------------ 25.3 USE SPECTRA R ------------------------------------------------------------------------------------------------------------------------------------ 26 USE SEQ 26-44.3 WITHIN HVSET 48H Comments: SET HV DAC TO 22.66KV. ------------------------------------------------------------------------------------------------------------------------------------ 27 USE WAIT ------------------------------------------------------------------------------------------------------------------------------------ 28 USE TRIM Comments: SET TRIM CURRENT TO 130 (0 MA). ------------------------------------------------------------------------------------------------------------------------------------ 29 USE SPECTRA B ------------------------------------------------------------------------------------------------------------------------------------ 30 USE HVSET Comments: SET HV DAC TO 22.86KV. ------------------------------------------------------------------------------------------------------------------------------------ 31 USE WAIT ------------------------------------------------------------------------------------------------------------------------------------ 32 USE SPECTRA B ------------------------------------------------------------------------------------------------------------------------------------ 33 USE HVSET Comments: SET HV DAC TO 23.06KV. ------------------------------------------------------------------------------------------------------------------------------------ 34 USE WAIT ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 3923c [ 7] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 35 USE SPECTRA B ------------------------------------------------------------------------------------------------------------------------------------ 36 USE HVSET Comments: SET HV DAC TO 23.26KV. ------------------------------------------------------------------------------------------------------------------------------------ 37 USE WAIT ------------------------------------------------------------------------------------------------------------------------------------ 38 USE SPECTRA B ------------------------------------------------------------------------------------------------------------------------------------ 39 USE HVSET Comments: SET HV DAC TO 23.46KV. ------------------------------------------------------------------------------------------------------------------------------------ 40 USE WAIT ------------------------------------------------------------------------------------------------------------------------------------ 41 USE SPECTRA B ------------------------------------------------------------------------------------------------------------------------------------ 42 USE HVSET Comments: SET HV DAC TO 23.66KV. ------------------------------------------------------------------------------------------------------------------------------------ 43 USE WAIT ------------------------------------------------------------------------------------------------------------------------------------ 44 USE SPECTRA B ------------------------------------------------------------------------------------------------------------------------------------ 44.1 USE HVSET Comments: SET HV DAC TO 23.86KV. ------------------------------------------------------------------------------------------------------------------------------------ 44.2 USE WAIT ------------------------------------------------------------------------------------------------------------------------------------ 44.3 USE SPECTRA B ------------------------------------------------------------------------------------------------------------------------------------ 45 USE AFTER 25.3 BY 30D PITCHR Comments: TO BE RUN AFTER NEW HV UPDATE HAS BEEN COMPLETED ------------------------------------------------------------------------------------------------------------------------------------ EXPOSURE LOGSHEET ID = 3923c [ 8] ------------------------------------------------------------------------------------------------------------------------------------ 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 |10 | 11 | 12 |13 |14| 15 ------------------------------------------------------------------------------------------------------------------------------------ Line | Seq | Target |Instr | Oper. | Aper |Spectral|Central| Optional |Num| Time | S/N |Flx|Pr| Special Number | Name | Name |Config| Mode |or FOV |Element |Waveln.| Parameters |Exp| |Rel. Time|Ref| | Requirements ------------------------------------------------------------------------------------------------------------------------------------ 46 USE AFTER 44.3 BY 30D PITCHB Comments: TO BE RUN AFTER NEW HV UPDATE HAS BEEN COMPLETED ------------------------------------------------------------------------------------------------------------------------------------ Summary Form for Proposal 3923c [ 9] Item Used in this proposal ------------------------------------------------------------------------------------------------------------------------------------ Configurations S/C FOS/RD FOS/BL ------------------------------------------------------------------------------------------------------------------------------------ Opmodes POINTING IMAGE ------------------------------------------------------------------------------------------------------------------------------------ Optional Parameters SUB-STEP=8 Y-SIZE=1 X=0 COMB=YES X=-512 X=+512 SUB-STEP=4 Y-SIZE=85 Y-SPACE=10.54 Y-OFFSET=+253 ------------------------------------------------------------------------------------------------------------------------------------ Proposal for CAL/FOS ------------------------------------------------------------------------------------------------------------------------------------ S/C Hours ------------------------------------------------------------------------------------------------------------------------------------ Scientific Category ------------------------------------------------------------------------------------------------------------------------------------ Scientific Sub-category ------------------------------------------------------------------------------------------------------------------------------------ Special Requirements SEQ 7-25.3 WITHIN 48H; CYCLE 1 / 7-46; SEQ 26-44.3 WITHIN 48H; AFTER 25.3 BY 30D; AFTER 44.3 BY 30D; ------------------------------------------------------------------------------------------------------------------------------------ Spectral Elements G190H MIRROR ------------------------------------------------------------------------------------------------------------------------------------ Target Names ------------------------------------------------------------------------------------------------------------------------------------