SVO Filter Profile Service

SOHO :SOHO, the Solar & Heliospheric Observatory, is a project of international collaboration between ESA and NASA to study the Sun from its deep core to the outer corona and the solar wind.
SOHO/EIT :The SOHO Extreme ultraviolet Imaging Telescope

SOHO filters: EIT LASCO

Filter ID	λ_ref	λ_mean	λ_eff	λ_min	λ_max	W_eff	ZP_ν	ZP_λ	Obs. Facility	Instrument	Description
SOHO/EIT.171A_Al2	174.85	174.89		170.02	184.00	6.73			SOHO	EIT	SOHO EIT 171A band with Al+2 filter
SOHO/EIT.171A_Al1	174.86	174.91		170.02	184.00	6.85			SOHO	EIT	SOHO EIT 171A band with Al+1 filter
SOHO/EIT.171A_clear	174.86	174.91		170.02	184.00	6.82			SOHO	EIT	SOHO EIT 171A band with clear filter
SOHO/EIT.195A_Al2	190.91	191.13		175.18	215.00	12.02			SOHO	EIT	SOHO EIT 195A band with Al+2 filter
SOHO/EIT.195A_Al1	191.04	191.26		175.21	215.00	12.22			SOHO	EIT	SOHO EIT 195A band with Al+1 filter
SOHO/EIT.195A_clear	191.07	191.30		175.22	215.00	12.18			SOHO	EIT	SOHO EIT 195A band with clear filter
SOHO/EIT.284A_Al2	275.05	275.95		238.22	294.67	15.27			SOHO	EIT	SOHO EIT 284A band with Al+2 filter
SOHO/EIT.284A_Al1	276.13	276.75		245.71	294.71	14.69			SOHO	EIT	SOHO EIT 284A band with Al+1 filter
SOHO/EIT.284A_clear	276.52	277.06		246.82	294.74	14.69			SOHO	EIT	SOHO EIT 284A band with clear filter
SOHO/EIT.304A_Al2	292.64	296.17		172.29	334.03	27.15			SOHO	EIT	SOHO EIT 304A band with Al+2 filter
SOHO/EIT.304A_Al1	296.90	299.13		214.17	334.61	24.84			SOHO	EIT	SOHO EIT 304A band with Al+1 filter
SOHO/EIT.304A_clear	298.24	300.09		225.78	334.82	24.79			SOHO	EIT	SOHO EIT 304A band with clear filter

Filter Plots (using a common λ range)

(Plot them zoomed to their own λ range)

If your research benefits from the use of the SVO Filter Profile Service, we would appreciate if you could include the following acknowledgement in your publication:

This research has made use of the Spanish Virtual Observatory (https://svo.cab.inta-csic.es) project funded by MCIN/AEI/10.13039/501100011033/ through grant PID2020-112949GB-I00

and we would appreciate if you could include the following references in your publication:

The SVO Filter Profile Service. Rodrigo, C., Solano, E., Bayo, A., 2012; https://ui.adsabs.harvard.edu/abs/2012ivoa.rept.1015R/abstract
The SVO Filter Profile Service. Rodrigo, C., Solano, E., 2020; https://ui.adsabs.harvard.edu/abs/2020sea..confE.182R/abstract