12.16 WAVECAL Exposure Parameters

Table 12.5 lists the exposure times and current settings for the wavelength calibration lamp exposures as a function of spectral element and central wavelength¹

Table 12.5: WAVECAL Exposure Parameters  

Grating	Central Wavelength (е)	Lamp Current Specification	Exposure Time (seconds)	BUFFERTIME (sec)	Flash Duration (sec)
G130M	1055	MEDIUM	102	510	102
	1096	MEDIUM	35	180	35
	1222	MEDIUM	52	120	52
	1291	MEDIUM	12	120	12
	1300	MEDIUM	12	120	12
	1309	MEDIUM	12	120	12
	1318	MEDIUM	12	120	12
	1327	MEDIUM	12	120	12
G160M	1577	MEDIUM	12	120	12
	1589	MEDIUM	12	120	12
	1600	MEDIUM	12	120	12
	1611	MEDIUM	12	120	12
	1623	MEDIUM	12	120	12
G140L	1105	MEDIUM	7	120	7
	1280	MEDIUM	7	120	7
	G185M	1786	MEDIUM	12	220	12
1817		MEDIUM	12	220	12
1835		MEDIUM	12	240	12
1850		MEDIUM	22	180	22
1864		MEDIUM	32	180	32
1882		MEDIUM	17	120	17
1890		MEDIUM	12	120	12
1900		MEDIUM	22	140	22
1913		MEDIUM	17	140	17
1921		MEDIUM	12	140	12
1941		MEDIUM	12	180	12
1953		MEDIUM	17	180	17
1971		MEDIUM	17	180	17
1986		MEDIUM	12	180	12
2010		MEDIUM	12	180	12
G225M	2186	MEDIUM	7	120	7
	2217	MEDIUM	12	120	12
	2233	MEDIUM	7	120	7
	2250	MEDIUM	2	120	22
	2268	MEDIUM	12	120	12
	2283	MEDIUM	12	120	12
	2306	MEDIUM	12	120	12
	2325	MEDIUM	12	280	12
	2339	MEDIUM	12	280	12
	2357	MEDIUM	12	240	12
	2373	MEDIUM	22	240	22
	2390	MEDIUM	7	240	7
	2410	MEDIUM	7	280	7
G285M	2617	MEDIUM	12	300	12
	2637	MEDIUM	12	300	12
	2657	MEDIUM	7	300	7
	2676	MEDIUM	22	300	22
	26 95	MEDIUM	22	330	22
	2709	MEDIUM	12	330	12
	2719	MEDIUM	7	330	7
	2739	MEDIUM	7	430	7
	2850	MEDIUM	22	430	22
	2952	MEDIUM	7	430	7
	2979	MEDIUM	17	430	17
	2996	MEDIUM	17	140	17
	3018	MEDIUM	22	140	22
	3035	MEDIUM	27	160	27
	3057	MEDIUM	32	160	32
	3074	MEDIUM	32	160	32
	3094	MEDIUM	32	160	32
G230L	2635	MEDIUM	7	100	7
	2950	MEDIUM	7	180	7
	3000	MEDIUM	7	180	7
	3360	MEDIUM	12	140	12
MIRRORA	3360	LOW	7	80	7
MIRRORB	3360	LOW	27	80	27

 

---

1

Kenneth Sembach, "Cosmic Origins Spectrograph PtNe Wavelength Calibration Exposure Times," COS Technical Instrument Report 2006-01 (v1)