12.12 Cycle 24 Calibration Program
The Cycle 24 calibration plans for COS continued 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 24 is listed in Table 12.13.
The program also included enabling and calibration programs designed to facilitate the move to Lifetime Position 4 LP4); they are listed in Table 12.14.
Table 12.13: Cycle 24 Calibration Programs.
| Program Name | Program ID |
|---|---|
COS NUV MAMA Fold Distribution | 14526 |
NUV Detector Dark Monitor | 14521 |
COS NUV Spectroscopic Sensitivity Monitor | 14858 |
COS NUV Internal/External Wavelength Scale Monitor | 14859 |
COS FUV Detector Dark Monitor | 14520 |
COS FUV Spectroscopic Sensitivity Monitor | 14854 |
COS FUV Internal/External Wavelength Scale Monitor | 14855 |
COS FUV Detector Gain Maps | 14519 |
COS Pure Parallel Observations of Geocoronal Ly alpha | 14833 |
COS Target Acquisition Monitor | 14857 |
COS/FUV Wavecal lamp template reference files at LP3* | 14856 |
| COS/FUV Wavelength Calibration at Lifetime Position 3* | 14090 |
*non-routine program
Table 12.14: Lifetime Position 4 Calibration Program.
| Program ID |
Characterization of COS/FUV detector modal gain at Lifetime Position 4 | 14525 |
FUV Focus Sweep Exploratory Program for COS at LP4 | 14527 |
Optimization of COS/FUV spectrum placement at Lifetime Position 4 | 14841 |
Quick-check of the G130M Spectral Resolution at Lifetime Position 41 | 14842 |
COS/FUV Wavecorr at LP4 | 14869 |
| |
COS FUV Focus Sweep Program at LP4 | 14874 |
Verification of Aperture and FUV Spectrum Placement for COS at LP4 | 14875 |
COS LP4 FUV Target Acquisition Enabling and Verification | 14907 |
COS/FUV LP4 Focus Sweep—New G130M/1223 Cenwave | 14929 |
| |
Fourth COS FUV Lifetime Position: Cross-Dispersion Profiles, Flux, and Flat-Field Calibration | 14910 |
COS/FUV LP4: Spectral Resolution of G130M/1223 | 14935 |
COS FUV Dispersion Solutions at LP4 | 15365 |
COS FUV Spectral Resolution at LP4 | 15366 |
COS FUV Profile for 1223 cenwave at LP4 | 15367 |
COS FUV BOA performance at LP4 | 15368 |
COS FUV Lamp Templates at LP4 | 15369 |
COS FUV Gain Map at LP3/LP4 | 15370 |
1 This and preceding programs are in Cycle 23; the rest are in Cycle 24.
-
COS Instrument Handbook
- Acknowledgments
- Chapter 1: An Introduction to COS
-
Chapter 2: Special Considerations when Observing with COS
- • 2.1 COS FUV Detector Lifetime Positions
- • 2.2 Visit Length
- • 2.3 Central Wavelength Settings Added in Cycle 26
- • 2.4 ORIENT constraints for Extended Sources
- • 2.5 COS Observations Below 1150 Angstroms: Resolution and Wavelength Calibration Issues
- • 2.6 Time-Dependent Sensitivity Changes
- • 2.7 Spectroscopic Use of the Bright Object Aperture
- • 2.8 Non-Optimal Observing Scenarios
- • 2.9 NUV Spectroscopic Acquisitions
- • 2.10 SNAP, TOO, and Unpredictable Source Programs with COS
- • 2.11 Choosing between COS and STIS
- 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
- 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
- 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
- Chapter 13: Spectroscopic Reference Material
- • Glossary