12.21 Cycle 33 Calibration Program
The Cycle 33 calibration plans for COS continue the routine calibration and monitoring programs performed in previous Cycles. Brief descriptions of the programs are listed in Table 12.2. The full calibration plan for Cycle 33 is listed in Table 12.28. Calibration programs for LP7/LP10 are listed in Table 12.29. Exploratory and enabling programs for LP11/LP12 are listed in Table 12.30 and Table 12.31, respectively.
Two contingency programs introduced in Cycle 17 are included in this cycle; both FUV and NUV Detector Recovery After Anomalous Shutdown. Two contingency programs introduced in Cycle 28 are included in this cycle as well. The program COS FUV Change in Spectroscopic Sensitivity Trends is a supplement to the COS FUV Spectroscopic Sensitivity Monitor and is activated when the time-dependent sensitivity appears to be changing on short timescales. The COS FUV Characterization of Modal Gain When Changing High Voltage program is activated when the high voltage of the FUV detector is changed. The COS FUV Split-Wavecal Monitor, which aims to improve the wavelength solution for exposures that require split wavecals, was added in Cycle 32.
Table 12.28: Cycle 33 Calibration Programs.
| Program Name | Program ID | |
|---|---|---|
Cycle 33 COS NUV MAMA Fold Distribution | 17935 | |
Cycle 33 COS NUV Detector Dark Monitor | 17934 | |
Cycle 33 COS NUV Spectroscopic Sensitivity Monitor | 17936 | |
Cycle 33 COS NUV Wavelength Scale Monitor | 17937 | |
Cycle 33 COS NUV Target Acquisition Monitor | 18203 | |
Cycle 33 COS FUV Detector Gain Maps | 18198 | |
Cycle 33 COS FUV Detector Dark Monitor | 18197 | |
Cycle 33 COS FUV Spectroscopic Sensitivity Monitor | 18199 | |
Cycle 33 COS FUV Wavelength Scale Monitor | 18201 | |
| Cycle 33 COS FUV Target Acquisition Monitor | 18200 | |
| Cycle 33 COS FUV Split-Wavecal Monitor | 18202 | |
| Cycle 33 COS FUV Detector Recovery After Anomalous Shutdown* | 17938 | |
| Cycle 33 COS NUV Detector Recovery After Anomalous Shutdown* | 17939 | |
| Cycle 33 COS FUV Change in Spectroscopic Sensitivity Trends* | 18204 | |
| Cycle 33 COS FUV Characterization of Modal Gain When Changing High Voltage* | 18205 |
*contingency program
Table 12.29: LP7/LP10 Calibration Programs.
| Program Name | Program ID | |
|---|---|---|
| COS FUV LP7 Calibration: Profiles, Traces, Sensitivities, Flat Fields, and Spatial Resolution | 17940 | |
| COS FUV LP10 Calibration I: Profiles, Traces, Sensitivities, Flat Fields, and Spatial Resolution | 17941 | |
| COS FUV LP7 Calibration Dispersion Solutions | 18177 | |
| COS FUV LP10 Calibration: Dispersion Solutions | 18180 | |
| COS FUV LP7 Calibration: Lamp Templates | 18178 | |
| COS FUV LP10 Calibration: Lamp Templates | 18181 | |
| COS LP7 Initial Gain Map | 18179 | |
| COS LP10 Initial Gain Map | 18182 |
Table 12.30: LP11/LP12 Exploratory Programs.
| Program Name | Program ID | |
|---|---|---|
| LP11 Gain Maps | 18207 | |
| LP11 Geometric Correction + Y-walk Analysis | 18208 | |
| LP12 Cross-Dispersion Profile | 18210 | |
| LP11 Detector Plate Scale and Aperture Block Position | 18211 | |
| LP11 Coarse Focus Run | 18212 |
Table 12.31: LP11/LP12 Enabling Programs.
| Program Name | Program ID | |
|---|---|---|
| LP11 Target Placement | 18231 | |
| LP11 Focus Sweep | 18232 | |
| LP11 Target Acquisition | 18233 | |
| LP12 Target Placement | 18246 | |
LP12 Focus Sweep | 18247 | |
| LP12 Target Acquisition | 18248 |
If your program requires calibrations beyond those described here, then you should explicitly include this calibration in your Phase I proposal.
-
COS Instrument Handbook
- Acknowledgments
- Chapter 1: An Introduction to COS
- Chapter 2: Proposal and Program Considerations
- Chapter 3: Description and Performance of the COS Optics
- Chapter 4: Description and Performance of the COS Detectors
-
Chapter 5: Spectroscopy with COS
- • 5.1 The Capabilities of COS
- • 5.2 TIME-TAG vs. ACCUM Mode
- • 5.3 Valid Exposure Times
- • 5.4 Estimating the BUFFER-TIME in TIME-TAG Mode
- • 5.5 Spanning the Gap with Multiple CENWAVE Settings
- • 5.6 FUV Single-Segment Observations
- • 5.7 Internal Wavelength Calibration Exposures
- • 5.8 Fixed-Pattern Noise
- • 5.9 COS Spectroscopy of Extended Sources
- • 5.10 Wavelength Settings and Ranges
- • 5.11 Spectroscopy with Available-but-Unsupported Settings
- • 5.12 FUV Detector Lifetime Positions
- • 5.13 Spectroscopic Use of the Bright Object Aperture
- Chapter 6: Imaging with COS
- Chapter 7: Exposure-Time Calculator - ETC
-
Chapter 8: Target Acquisitions
- • 8.1 Introduction
- • 8.2 Target Acquisition Overview
- • 8.3 ACQ SEARCH Acquisition Mode
- • 8.4 ACQ IMAGE Acquisition Mode
- • 8.5 ACQ PEAKXD Acquisition Mode
- • 8.6 ACQ PEAKD Acquisition Mode
- • 8.7 Exposure Times
- • 8.8 Centering Accuracy and Data Quality
- • 8.9 Recommended Parameters for all COS TA Modes
- • 8.10 Special Cases
- Chapter 9: Scheduling Observations
-
Chapter 10: Bright-Object Protection
- • 10.1 Introduction
- • 10.2 Screening Limits
- • 10.3 Source V Magnitude Limits
- • 10.4 Tools for Bright-Object Screening
- • 10.5 Policies and Procedures
- • 10.6 On-Orbit Protection Procedures
- • 10.7 Bright Object Protection for Solar System Observations
- • 10.8 SNAP, TOO, and Unpredictable Sources Observations with COS
- • 10.9 Bright Object Protection for M Dwarfs
- Chapter 11: Data Products and Data Reduction
-
Chapter 12: The COS Calibration Program
- • 12.1 Introduction
- • 12.2 Ground Testing and Calibration
- • 12.3 SMOV4 Testing and Calibration
- • 12.4 COS Monitoring Programs
- • 12.5 Cycle 17 Calibration Program
- • 12.6 Cycle 18 Calibration Program
- • 12.7 Cycle 19 Calibration Program
- • 12.8 Cycle 20 Calibration Program
- • 12.9 Cycle 21 Calibration Program
- • 12.10 Cycle 22 Calibration Program
- • 12.11 Cycle 23 Calibration Program
- • 12.12 Cycle 24 Calibration Program
- • 12.13 Cycle 25 Calibration Program
- • 12.14 Cycle 26 Calibration Program
- • 12.15 Cycle 27 Calibration Program
- • 12.16 Cycle 28 Calibration Program
- • 12.17 Cycle 29 Calibration Program
- • 12.18 Cycle 30 Calibration Program
- • 12.19 Cycle 31 Calibration Program
- • 12.20 Cycle 32 Calibration Program
- • 12.21 Cycle 33 Calibration Program
- Chapter 13: COS Reference Material
- • Glossary