8.5.4 The Official STIS Aperture List

There are many apertures available for HST's STIS detectors, and this articles shows which one are allowed for the different operating modes.

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 Format definitions

Format definitions

Boldface type indicates the name of an APT parameter or a value for a parameter.

(red star) Black text indicates an important note.

Magenta text indicates available but unsupported parameters (requires prior approval from STScI).

Red text indicates restricted parameters (for STScI use only).

Brown text indicates text file parameters.

Items in brackets - <value> - are required values.

Items in square brackets - [<value>] - are optional.

Table 8.7 lists the STIS apertures for Cycle 27. The supported ones for GOs are noted with an “Ok.” This table has been carefully checked for completeness and accuracy, and should be taken as the final word for Cycle 27.

Revisions to documents occur as needed to keep them up-to-date. If a discrepancy is found in this or other documents (such as the Data Handbook or STIS Instrument Handbook), the table here should be considered definitive and correct.

Table 8.7: Supported STIS Apertures

Aperture

Name

Dimensions

(arcsec)

Description

STIS/CCD

STIS/FUV-MA

MA

STIS/NUV-MAMA

ACQ

ACQ/PEAK

ACCUM

ACCUM or TIME-TAG

ACCUM or TIME-TAG

Length

Width

MIRROR

MIRROR

G230LB

G230MB

G430L

G430M

G750L

G750M

MIRROR

G230LB

G230MB

G430L

G430M

G750L

G750M

MIRROR

G140L

G140M

E140H

E140M

MIRROR

G230L

G230M

E230H

E230M

PRISM

F means a forbidden combination; R means a Restricted combination; A means Available but Unsupported

Echelle Slits

0.1X0.03

0.1

0.025

Very high spectral resolution

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

A

A

A

A

A

A

A

R

A

A

Ok

Ok

R

A

A

Ok

Ok

A

0.1X0.09

0.1

0.09

Echelle slit

F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

Ok

A

A

0.1X0.2

0.1

0.2

Echelle slit

F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

Ok

A

A

0.2X0.06

0.2

0.063

Echelle slit

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

A

A

A

A

A

A

A

R

A

A

A

Ok

R

A

A

A

Ok

A

0.2X0.09

0.2

0.09

Echelle slit

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

A

A

A

A

A

A

A

R

A

A

Ok

A

R

A

A

Ok

A

A

0.2X0.2

0.2

0.2

Echelle slit

F

A

A

A

A

A

A

A

A

Ok

Ok

Ok

Ok

Ok

Ok

R

Ok

Ok

Ok

Ok

R

Ok

Ok

Ok

Ok

A

0.2X0.05ND

0.2

0.05

Filtered Slit; Neutral Density=2.0

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

A

A

A

A

A

A

A

R

A

A

Ok

Ok

R

A

A

Ok

Ok

A

0.2X0.06FPA

0.2

0.063

Offset in dispersion direction

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

A

R

R

R

R

R

R

R

R

R

Ok

Ok

R

R

R

Ok

Ok

R

0.2X0.06FPB

0.2

0.063

Offset in dispersion direction

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

A

R

R

R

R

R

R

R

R

R

Ok

Ok

R

R

R

Ok

Ok

R

0.2X0.06FPC

0.2

0.063

Offset in dispersion direction

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

A

R

R

R

R

R

R

R

R

R

Ok

Ok

R

R

R

Ok

Ok

R

0.2X0.06FPD

0.2

0.063

Offset in dispersion direction

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

A

R

R

R

R

R

R

R

R

R

Ok

Ok

R

R

R

Ok

Ok

R

0.2X0.06FPE

0.2

0.063

Offset in dispersion direction

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

A

R

R

R

R

R

R

R

R

R

Ok

Ok

R

R

R

Ok

Ok

R

0.2X0.2FPA

0.2

0.2

Offset in dispersion direction

F

A

A

A

A

A

A

A

A

R

R

R

R

R

R

R

R

R

Ok

Ok

R

R

R

Ok

Ok

R

0.2X0.2FPB

0.2

0.2

Offset in dispersion direction

F

A

A

A

A

A

A

A

A

R

R

R

R

R

R

R

R

R

Ok

Ok

R

R

R

Ok

Ok

R

0.2X0.2FPC

0.2

0.2

Offset in dispersion direction

F

A

A

A

A

A

A

A

A

R

R

R

R

R

R

R

R

R

Ok

Ok

R

R

R

Ok

Ok

R

0.2X0.2FPD

0.2

0.2

Offset in dispersion direction

F

A

A

A

A

A

A

A

A

R

R

R

R

R

R

R

R

R

Ok

Ok

R

R

R

Ok

Ok

R

0.2X0.2FPE

0.2

0.2

Offset in dispersion direction

F

A

A

A

A

A

A

A

A

R

R

R

R

R

R

R

R

R

Ok

Ok

R

R

R

Ok

Ok

R

0.3X0.05ND

0.33

0.05

Filtered Slit; Neutral Density=3.0

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

A

A

A

A

A

A

A

R

A

A

Ok

Ok

R

A

A

Ok

Ok

A

6X0.2

6.0

0.2

Echelle slit

F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

Ok

Ok

R

A

A

Ok

Ok

A

31X0.05NDA

31.0

0.05

Filtered long slit;ND=0.4

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

A

A

A

A

A

A

A

R

Ok

Ok

Ok

Ok

R

Ok

Ok

Ok

Ok

A

31X0.05NDB

31.0

0.05

Filtered long slit;ND=0.8

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

A

A

A

A

A

A

A

R

Ok

Ok

Ok

Ok

R

Ok

Ok

Ok

Ok

A

31X0.05NDC

31.0

0.05

Filtered long slit;ND=1.2

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

A

A

A

A

A

A

A

R

Ok

Ok

Ok

Ok

R

Ok

Ok

Ok

Ok

A

First-Order Slits 

52X0.05

52.0

0.034

Long slit

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

A

Ok

Ok

Ok

Ok

Ok

Ok

R

Ok

Ok

Ok

Ok

R

Ok

Ok

Ok

Ok

Ok

52X0.1

52.0

0.1

First order slit

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

A

Ok

Ok

Ok

Ok

Ok

Ok

R

Ok

Ok

A

A

R

Ok

Ok

A

A

Ok

52X0.2

52.0

0.2

First order slit

F

A

A

A

A

A

A

A

A

Ok

Ok

Ok

Ok

Ok

Ok

R

Ok

Ok

A

A

R

Ok

Ok

A

A

Ok

52X0.2F1

52.0

0.2

First order slit; Fiducial=0.5 arcsec

F

A

A

A

A

A

A

A

A

Ok

Ok

Ok

Ok

Ok

Ok

R

Ok

Ok

A

A

R

Ok

Ok

A

A

A

52X0.2F1–R

52.0

0.2

Reference for peaking up in slit width

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

52X0.5

52.0

0.5

First order slit

F

R

R

R

R

R

R

R

A

Ok

Ok

Ok

Ok

Ok

Ok

R

Ok

Ok

A

A

R

Ok

Ok

A

A

Ok

52X2

52.0

2.0

First order slit

F

R

R

R

R

R

R

R

A

Ok

Ok

Ok

Ok

Ok

Ok

R

Ok

Ok

A

A

R

Ok

Ok

A

A

Ok

Large Apertures 

25MAMA

24.7

24.7

Clear MAMA aperture

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

50CCD

50.0

50.0

Clear CCD aperture

Ok

F

F

F

F

F

F

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

F

F

F

F

F

F

F

F

F

F

F

50CORON

50.0

50.0

Coronagraph aperture

F

F

F

F

F

F

F

F

Ok

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

F25CIII

24.7

24.7

CIII filtered NUV–MAMA

F

F

F

F

F

F

F

F

R

R

R

R

R

R

R

F

F

F

F

F

Ok

A

A

A

A

A

F25CN182

24.7

24.7

182nm Cont. filtered NUV–MAMA

F

F

F

F

F

F

F

F

R

R

R

R

R

R

R

F

F

F

F

F

Ok

A

A

A

A

A

F25CN270

24.7

24.7

270nm Cont. filtered NUV–MAMA

F

F

F

F

F

F

F

F

R

R

R

R

R

R

R

F

F

F

F

F

Ok

A

A

A

A

A

F25LYA

24.7

24.7

Lyman-alpha filtered FUV–MAMA

F

F

F

F

F

F

F

F

R

R

R

R

R

R

R

Ok

A

A

A

A

F

F

F

F

F

F

F25MGII

24.7

24.7

MGII filtered NUV–MAMA

F

F

F

F

F

F

F

F

R

R

R

R

R

R

R

F

F

F

F

F

Ok

Ok

Ok

Ok

Ok

Ok

F25ND3

24.7

24.7

ND 3 filtered MAMA & CCD

Ok

F

F

F

F

F

F

F

Ok

A

A

A

A

A

A

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

F25ND5

24.7

24.7

ND 5 filtered MAMA & CCD

Ok

F

F

F

F

F

F

F

Ok

A

A

A

A

A

A

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

F25NDQ1

13.4

9.7

ND step filtered MAMA & CCD (Quad1)

R

F

F

F

F

F

F

F

Ok

A

A

A

A

A

A

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

F25NDQ2

13.8

15.1

ND step filtered MAMA & CCD (Quad2)

R

F

F

F

F

F

F

F

Ok

A

A

A

A

A

A

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

F25NDQ3

11.4

15.3

ND step filtered MAMA & CCD (Quad3)

R

F

F

F

F

F

F

F

Ok

A

A

A

A

A

A

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

F25NDQ4

11.8

9.5

ND step filtered MAMA & CCD (Quad4)

R

F

F

F

F

F

F

F

Ok

A

A

A

A

A

A

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

F25QTZ

24.7

24.7

Quartz filtered MAMA aperture

F

F

F

F

F

F

F

F

R

R

R

R

R

R

R

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

F25SRF2

24.7

24.7

SrF2 filtered MAMA aperture

F

F

F

F

F

F

F

F

R

R

R

R

R

R

R

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

Ok

F28X50LP

28.0

50.0

Long pass filtered CCD aperture

Ok

F

F

F

F

F

F

F

Ok

A

A

A

A

A

A

F

F

F

F

F

F

F

F

F

F

F

F28X50OII

28.0

50.0

OII filtered CCD aperture

Ok

F

F

F

F

F

F

F

Ok

A

A

A

A

A

A

F

F

F

F

F

F

F

F

F

F

F

F28X50OIII

28.0

50.0

OIII filtered CCD aperture

Ok

F

F

F

F

F

F

F

Ok

A

A

A

A

A

A

F

F

F

F

F

F

F

F

F

F

F

Coronagraphic Apertures

BAR5

50.0

50.0

Bar in coronagraph aperture; 5.0x0.3 arcsec

F

R

R

R

R

R

R

R

Ok

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

BAR10

50.0

50.0

Bar in coronagraph aperture; 10.0x3.0 arcsec

F

R

R

R

R

R

R

R

Ok

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

WEDGEA0.6

50.0

50.0

Wedge A in coronagraph aper.; Width=0.6 arcsec

F

F

F

F

F

F

F

F

Ok

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

WEDGEA1.0

50.0

50.0

Wedge A in coronagraph aper.; Width=1.0 arcsec

F

R

R

R

R

R

R

R

Ok

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

WEDGEA1.8

50.0

50.0

Wedge A in coronagraph aper.; Width=1.8 arcsec

F

R

R

R

R

R

R

R

Ok

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

WEDGEA2.0

50.0

50.0

Wedge A in coronagraph aper.; Width=2.0 arcsec

F

R

R

R

R

R

R

R

Ok

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

WEDGEA2.5

50.0

50.0

Wedge A in coronagraph aper.; Width=2.5 arcsec

F

R

R

R

R

R

R

R

Ok

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

WEDGEA2.8

50.0

50.0

Wedge A in coronagraph aper.; Width=2.8 arcsec

F

R

R

R

R

R

R

R

Ok

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

WEDGEB1.0

50.0

50.0

Wedge B in coronagraph aper.; Width=1.0 arcsec

F

R

R

R

R

R

R

R

Ok

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

WEDGEB1.8

50.0

50.0

Wedge B in coronagraph aper.; Width=1.8 arcsec

F

R

R

R

R

R

R

R

Ok

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

WEDGEB2.0

50.0

50.0

Wedge B in coronagraph aper.; Width=2.0 arcsec

F

R

R

R

R

R

R

R

Ok

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

WEDGEB2.5

50.0

50.0

Wedge B in coronagraph aper.; Width=2.5 arcsec

F

R

R

R

R

R

R

R

Ok

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

WEDGEB2.8

50.0

50.0

Wedge B in coronagraph aper.; Width=2.8 arcsec

F

R

R

R

R

R

R

R

Ok

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

Offset CCD Slits 

52X0.05E1

52.0

0.034

Offset 19.7 arcsec in +Y POS (spatial) from center of 52X0.05 slit

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

A

Ok

Ok

Ok

Ok

Ok

Ok

F

F

F

F

F

F

F

F

F

F

F

52X0.1E1

52.0

0.1

Offset 19.7 arcsec in +Y POS (spatial) from center of 52X0.1 slit

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

A

Ok

Ok

Ok

Ok

Ok

Ok

F

F

F

F

F

F

F

F

F

F

F

52X0.2E1

52.0

0.2

Offset 19.7 arcsec in +Y POS (spatial) from center of 52X0.2 slit

F

A

A

A

A

A

A

A

A

Ok

Ok

Ok

Ok

Ok

Ok

F

F

F

F

F

F

F

F

F

F

F

52X0.5E1

52.0

0.5

Offset 19.7 arcsec in +Y POS (spatial) from center of 52X0.5 slit

F

R

R

R

R

R

R

R

A

Ok

Ok

Ok

Ok

Ok

Ok

F

F

F

F

F

F

F

F

F

F

F

52X2E1

52.0

2.0

Offset 19.7 arcsec in +Y POS (spatial) from center of 52X2 slit

F

R

R

R

R

R

R

R

A

Ok

Ok

Ok

Ok

Ok

Ok

F

F

F

F

F

F

F

F

F

F

F

52X0.2E2

52.0

0.2

Offset from E1 by 0.06 arcsec in -X POS (dispersion)

F

F

F

F

F

F

F

F

A

A

A

A

A

Ok

Ok

F

F

F

F

F

F

F

F

F

F

F

52X0.5E2

52.0

0.5

Offset from E1 by 0.053 arcsec in -X POS (dispersion)

F

F

F

F

F

F

F

F

A

A

A

A

A

Ok

Ok

F

F

F

F

F

F

F

F

F

F

F

52X2E2

52.0

2.0

Offset from E1 by 0.048 arcsec in -X POS (dispersion)

F

F

F

F

F

F

F

F

A

A

A

A

A

Ok

Ok

F

F

F

F

F

F

F

F

F

F

F

Low Background Offset FUV MAMA Slits 

25MAMAD1

24.7

24.7

Offset by 6.8 arcsec in -Y POS (spatial)

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

R

Ok

Ok

F

F

F

F

F

F

F

F

F25QTZD1

24.7

24.7

Offset by 6.8 arcsec in -Y POS (spatial)

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

R

Ok

Ok

F

F

F

F

F

F

F

F

F25SRF2D1

24.7

24.7

Offset by 6.8 arcsec in -Y POS (spatial)

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

R

Ok

Ok

F

F

F

F

F

F

F

F

52X0.05D1

52.0

0.034

Offset by 6.8 arcsec in -Y POS (spatial)

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

R

R

R

R

R

R

R

R

Ok

Ok

F

F

F

F

F

F

F

F

52X0.1D1

52.0

0.1

Offset by 6.8 arcsec in -Y POS (spatial)

F

Ok

Ok

Ok

Ok

Ok

Ok

Ok

R

R

R

R

R

R

R

R

Ok

Ok

F

F

F

F

F

F

F

F

52X0.2D1

52.0

0.2

Offset by 6.8 arcsec in -Y POS (spatial)

F

F

A

A

A

A

A

A

R

R

R

R

R

R

R

R

Ok

Ok

F

F

F

F

F

F

F

F

52X0.5D1

52.0

0.5

Offset by 6.8 arcsec in -Y POS (spatial)

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

R

Ok

Ok

F

F

F

F

F

F

F

F

52X2D1

52.0

2.0

Offset by 6.8 arcsec in -Y POS (spatial)

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

R

Ok

Ok

F

F

F

F

F

F

F

F

Table 9.5 (cont): Available but Unsupported and Restricted STIS Apertures 

 Click here to expand/collapse

Available-but-Unsupported STIS Apertures

Aperture

Name

Dimensions

(arcsec)

Description

STIS/CCD

STIS/FUV-MA

MA

STIS/NUV-MAMA

ACQ

ACQ/PEAK

ACCUM

ACCUM or TIME-TAG

ACCUM or TIME-TAG

Length

Width

MIRROR

MIRROR

G230LB

G230MB

G430L

G430M

G750L

G750M

MIRROR

G230LB

G230MB

G430L

G430M

G750L

G750M

MIRROR

G140L

G140M

E140H

E140M

MIRROR

G230L

G230M

E230H

E230M

PRISM

F means a forbidden combination; R means a Restricted combination; A means Available but Unsupported

Echelle Slits 

0.1X0.06

0.1

0.063


F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

0.2X0.5

0.2

0.5


F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

0.3X0.06

0.33

0.063


F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

0.3X0.09

0.33

0.09


F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

0.3X0.2

0.33

0.2


F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

0.5X0.5

0.5

0.5


F

R

R

R

R

R

R

R

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

1X0.06

1.0

0.063


F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

1X0.2

1.0

0.2


F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

6X0.06

6.0

0.063


F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

6X0.5

6.0

0.5


F

R

R

R

R

R

R

R

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

First-Order Slits 

2X2

2.0

2.0

First order slit, clear MAMA aper.

F

R

R

R

R

R

R

R

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

52X0.05F1

52.0

0.034

Long slit; Fiducial=0.5 arcsec

F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

52X0.05F1–R

52.0

0.034

Ref. for peaking up in slit width

F

A

A

A

A

A

A

A

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

52X0.05F2

52.0

0.034

Long slit; Fiducial=0.9 arcsec

F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

52X0.05F2–R

52.0

0.034

Ref. for peaking up in slit width

F

A

A

A

A

A

A

A

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

52X0.1B0.5

52.0

0.1

Occulting Bar; Width-0.5 arcsec

F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

52X0.1B0.5–R

52.0

0.1

Ref. for peaking up in slit width

F

A

A

A

A

A

A

A

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

52X0.1B1.0

52.0

0.1

Occulting Bar; Width=1.0 arcsec

F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

52X0.1B1.0–R

52.0

0.1

Ref. for peaking up in slit width

F

A

A

A

A

A

A

A

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

52X0.1B3.0

52.0

0.1

Occulting Bar; Width=3.0 arcsec

F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

52X0.1B3.0–R

52.0

0.1

Ref. for peaking up in slit width

F

A

A

A

A

A

A

A

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

52X0.1F1

52.0

0.1

Long slit; Fiducial=0.5 arcsec

F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

52X0.1F1–R

52.0

0.1

Ref. for peaking up in slit width

F

A

A

A

A

A

A

A

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

52X0.1F2

52.0

0.1

Long slit; Fiducial=0.9 arcsec

F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

52X0.1F2–R

52.0

0.1

Ref. for peaking up in slit width

F

A

A

A

A

A

A

A

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

52X0.2F2

52.0

0.2

Long slit; Fiducial=0.9 arcsec

F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

52X0.2F2–R

52.0

0.2

Ref. for peaking up in slit width

F

A

A

A

A

A

A

A

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

52X0.5F1

52.0

0.5

Long slit; Fiducial=0.5 arcsec

F

R

R

R

R

R

R

R

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

52X0.5F1–R

52.0

0.5

Ref. for peaking up in slit width

F

R

R

R

R

R

R

R

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

52X0.5F2

52.0

0.5

Long slit; Fiducial=0.9 arcsec

F

R

R

R

R

R

R

R

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

52X0.5F2–R

52.0

0.5

Ref. for peaking up in slit width

F

R

R

R

R

R

R

R

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

52X2F1

52.0

2.0

Long slit; Fiducial=0.5 arcsec

F

R

R

R

R

R

R

R

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

52X2F1–R

52.0

2.0

Ref. for peaking up in slit width

F

R

R

R

R

R

R

R

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

52X2F2

52.0

2.0

Long slit; Fiducial=0.9 arcsec

F

R

R

R

R

R

R

R

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

52X2F2–R

52.0

2.0

Ref. for peaking up in slit width

F

R

R

R

R

R

R

R

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

F

Large Apertures 

6X6

6.0

6.0

Clear MAMA aperture

F

F

F

F

F

F

F

F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

A

Planetary Apertures 

36X0.05N45

35.7

0.05

Planetary slit; –45 deg

F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

36X0.05P45

35.7

0.05

Planetary slit; +45 deg

F

A

A

A

A

A

A

A

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

36X0.6N45

35.7

0.6

Planetary slit; –45 deg

F

R

R

R

R

R

R

R

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A

36X0.6P45

35.7

0.6

Planetary slit; +45 deg

F

R

R

R

R

R

R

R

A

A

A

A

A

A

A

R

A

A

A

A

R

A

A

A

A

A


Restricted STIS Apertured

Aperture

Name

Dimensions

(arcsec)

Description

STIS/CCD

STIS/FUV-MA

MA

STIS/NUV-MAMA

ACQ

ACQ/PEAK

ACCUM

ACCUM or TIME-TAG

ACCUM or TIME-TAG

Length

Width

MIRROR

MIRROR

G230LB

G230MB

G430L

G430M

G750L

G750M

MIRROR

G230LB

G230MB

G430L

G430M

G750L

G750M

MIRROR

G140L

G140M

E140H

E140M

MIRROR

G230L

G230M

E230H

E230M

PRISM

F means a forbidden combination; R means a Restricted combination; A means Available but Unsupported

Cross-Disperser Slits

0.05X29

0.054

29.0

Cross-disperser slit

F

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

0.05X31NDA

0.05

31.0

Filtered Cross-disp. slit; ND=0.8

F

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

0.05X31NDB

0.05

31.0

Filtered Cross-disp. slit; ND=0.4

F

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

0.09X29

0.09

29.0

Cross-disperser slit

F

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

0.2X29

0.2

29.0

Cross-disperser slit

F

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R


R

R

R

R

R

R

Expand/Collapse all...


Related Links

8.5.1 STIS Central Wavelengths
8.5.2 STIS Internal Calibration Targets



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