12.13 Cycle 25 Calibration Program
The Cycle 25 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 25 is listed in Table 12.15. Programs were also included to calibrate cenwaves G140L/800 and G160M/1533; they are listed in Table 12.16.
Table 12.15: Cycle 25 Calibration Programs.
| Program Name | Program ID |
|---|---|
NUV MAMA Fold Distribution | 14943 |
NUV Detector Dark Monitor | 14942 |
NUV Spectroscopic Sensitivity Monitor | 15387 |
NUV Wavelength Scale Monitor | 15388 |
NUV Target Acquisition Monitor | 15389 |
FUV Detector Gain Maps | 14941 |
FUV Detector Dark Monitor | 14940 |
FUV Spectroscopic Sensitivity Monitor | 15384 |
FUV Wavelength Scale Monitor | 15385 |
FUV Target Acquisition Monitor | 15386 |
Table 12.16: New Cenwave Calibration Programs.
| |
15451 | COS FUV Focus Sweep for G140L/8001 |
15483 | COS FUV G140L/800 Flux Calibration and Cross-Dispersion Profile |
15484 | COS FUV G140L/800 Lamp Template |
| |
15452 | COS FUV Focus Sweep for G160M/1533 |
15457 | COS/FUV/G160M/1533 Wavelength Calibration – Dispersion Solution |
15458 | COS/FUV/G160M/1533 Profiles and Fluxes |
15459 | FUV COS Lamp Templates for G160M/1533 |
1 This program was also used for the G140L/800 wavelength calibration.
-
COS Instrument Handbook
- Acknowledgments
- Chapter 1: An Introduction to COS
-
Chapter 2: Special Considerations for Cycle 28
- • 2.1 COS FUV Detector Lifetime Positions
- • 2.2 Central Wavelength Settings Added in Cycle 26
- • 2.3 Use of the G285M Grating is Discouraged
- • 2.4 COS Observations Below 1150 Angstroms: Resolution and Wavelength Calibration Issues
- • 2.5 Time-Dependent Sensitivity Changes
- • 2.6 Spectroscopic Use of the Bright Object Aperture
- • 2.7 Non-Optimal Observing Scenarios
- • 2.8 NUV Spectroscopic Acquisitions
- • 2.9 SNAP, TOO, and Unpredictable Source Programs with COS
- • 2.10 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
- 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
- Chapter 13: Spectroscopic Reference Material
- • Glossary