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 NameProgram ID

NUV MAMA Fold Distribution

14526

NUV Detector Dark Monitor

14521

NUV Spectroscopic Sensitivity Monitor

14858

NUV Internal/External Wavelength Scale Monitor

14859

FUV Detector Dark Monitor

14520

FUV Spectroscopic Sensitivity Monitor

14854

FUV Internal/External Wavelength Scale Monitor

14855

COS FUV Detector Gain Maps

14519

COS Pure Parallel Observations of Geocoronal Ly alpha

14833

COS FUV Lamp Template at LP3

14856

COS Target Acquisition Monitor

14857


Table 12.14: Lifetime Position 4 Calibration Program.


I. Optimize the New Lifetime Position

14525

Characterization of COS/FUV detector modal gain at Lifetime Position 4

14527

FUV Focus Sweep Exploratory Program for COS at LP4

14841

Optimization of COS/FUV spectrum placement at Lifetime Position 4

14842

Quick-check of the G130M Spectral Resolution at Lifetime Position 41

14869

COS/FUV Wavecorr at LP4


II. Enable Science at the New Lifetime Position

14874

COS FUV Focus Sweep Program at LP4

14875

Verification of Aperture and FUV Spectrum Placement for COS at LP4

14907

COS LP4 FUV Target Acquisition Enabling and Verification

14929

COS/FUV LP4 Focus Sweep—New G130M/1223 Cenwave


III. Calibrate the New Lifetime Position

14910

Fourth COS FUV Lifetime Position: Cross-Dispersion Profiles, Flux, and Flat-Field Calibration

14935

COS/FUV LP4: Spectral Resolution of G130M/1223

15365

COS FUV Dispersion Solutions at LP4

15366

COS FUV Spectral Resolution at LP4

15367

COS FUV Profile for 1223 cenwave at LP4

15368

COS FUV BOA performance at LP4

15369

COS FUV Lamp Templates at LP4

15370

COS FUV Gain Map at LP3/LP4

1 This and preceding programs are in Cycle 23; the rest are in Cycle 24.