12.16 Cycle 28 Calibration Program

The Cycle 28 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 28 is listed in Table 12.19.

The program also included exploratory, enabling, and calibration programs designed to facilitate the move to Lifetime Position 5 (LP5); they are listed in Table 12.20. In addition, this program also included exploratory programs designed to facilitate the move to Lifetime Position 6 (LP6); they are listed in Table 12.21.

Table 12.19: Cycle 28 Calibration Programs.

Program NameProgram ID

NUV MAMA Fold Distribution


NUV Detector Dark Monitor


NUV Spectroscopic Sensitivity Monitor


NUV Wavelength Scale Monitor


NUV Target Acquisition Monitor


FUV Detector Gain Maps


FUV Detector Dark Monitor


FUV Spectroscopic Sensitivity Monitor


FUV Wavelength Scale Monitor


FUV Target Acquisition Monitor16326

Table 12.20: Lifetime Position 5 Calibration Program.

I. Optimize the New Lifetime Position
16052Testing for Systematics When Moving the COS Aperture Block
16106Initial Test of COS/FUV Spectrum Placement at Lifetime Position 5

II. Enable Science at the New Lifetime Position


Verification of Target Placement for COS at LP5
16431Focus Sweep Program for COS FUV Observations at LP5 and LP3
16432COS LP5 FUV Target Acquisition Enabling and Verification

III. Calibrate the New Lifetime Position
16466COS FUV LP5 Calibration: Profiles, Traces, Sensitivities, Flat Fields and Spatial Resolution
16467COS FUV LP5 Calibration: Spectral Resolution
16468COS FUV LP5 Calibration: Dispersion Solutions
16469COS FUV LP5 Calibration: Lamp Templates
16470COS FUV LP5 Calibration: Bright Object Aperture Performance
16471COS FUV LP5 Calibration: Gain Maps

Table 12.21: Lifetime Position 6 Exploratory Program.

Program NameProgram ID
COS/FUV Gain Map and Aperture Placement at LP616472

If your program requires calibrations beyond those described here, then you should explicitly include this calibration in your Phase I proposal.