52X0.2F1 Aperture

Description

The same physical aperture as the 52X0.2 but used at the position of the smaller of the two fiducials. The fiducial bar can be used for spectroscopic coronagraphic observations. The throughput for the unocculted 52X0.2 aperture is given below.

Special Considerations

Observations using this slit do not need to be preceded by a PEAKUP.


Table 13.23: 52X0.2 Throughputs.

λ

% Throughput

1200

65.3

1600

73.0

2000

77.0

2400

80.0

2800

82.1

3200

83.6

3600

84.6

4000

85.6

4400

86.4

4800

86.7

5200

86.9

5600

86.8

6000

86.4

6400

85.8

6800

84.9

7200

83.8

7600

82.7

8000

81.9

8400

81.2


Projected Length (arcsec)


 

Aperture

CCD

MAMA (M-modes)

MAMA (L-modes)

Width (arcsec)

52X0.2F1

52.0

28.0

25.0

2.0

Fiducial  0.5  0.5  0.50.2

Figure 13.70: 52X0.2 Aperture Throughput as a Function of Wavelength.