WINERED Parameters and Performance

Tables

Telescope	Magellan	NTT	Araki
Diameter [m]	6.5	3.58	1.3
Efficiency of telescope mirrors	0.73	0.73	0.73
Efficiency F ratio adjuster(s)	0.97	1	0.97
Occultation by the secondary (1=no occultation)	0.926	0.895	0.9
Pixel scale [arcsec]	0.15	0.27	0.8
Default seeing (or PSF FWHM) [arcsec]	1	1.4	3
Thermal background (Summer) [e-/pix/sec]	0.12	0.1	0.15
Thermal background (Winter) [e-/pix/sec]	0.08	0.1	0.07

Basic parameters — Pixel scale=0.15 arcsec, Slit length=9.0 arcsec (with Magellan)
Mode	WIDE			HIRES-Y			HIRES-J
Resolution	28000	24000	18000	68000	58000	44000	68000	58000	44000
Slit width [um]	100	140	200	100	140	200	100	140	200
Slit width [pixel]	2.0	2.8	4.0	2.0	2.8	4.0	2.0	2.8	4.0
Slit width [arcsec]	0.30	0.42	0.60	0.30	0.42	0.60	0.30	0.42	0.60

The limiting magnitude as a function of S/N (900 sec * 4 frames, ABBA, seeing=0.6")
Mode	Slit	Band	S/N (pixel sampling)
Mode	Slit	Band	300	100	30	10
WIDE	100	Ymag	12.18	14.21	15.93	17.22
	140		12.49	14.52	16.24	17.53
	200		12.76	14.79	16.51	17.80
WIDE	100	Jmag	12.28	14.31	16.03	17.31
	140		12.59	14.62	16.34	17.63
	200		12.86	14.89	16.61	17.90
HIRES-Y	100	Ymag	10.75	12.78	14.50	15.79
	140		11.06	13.10	14.81	16.10
	200		11.34	13.37	15.09	16.38
HIRES-J	100	Jmag	10.85	12.88	14.60	15.89
	140		11.16	13.19	14.91	16.20
	200		11.42	13.47	15.19	16.46