2.9 NUV Spectroscopic Acquisitions

Due to increased NUV detector background and mechanism position uncertainties, certain NUV central wavelength (cenwave) settings have proven to be unreliable in the NUV ACQ/PEAKXD target acquisition phase. The cenwave settings listed below have been proven reliable. NUV ACQ/PEAKXD target acquisitions should use one of these settings. Users who wish to use other cenwaves should contact the COS team via the Help Desk.

G185M: 1786, 1913, 1921, 1941

G225M: 2250, 2283, 2306

G285M: no settings recommended

G230L: 2635, 2950, 3000, 3360