Help: Which DKIST Instruments/Configurations are available?

A definitive list of instruments, modes and available configurations are listed in the Proposal Call (see Current Proposal Call).

Submitted proposals must abide by the list of available capabilities in order to be reviewed and awarded time.

Cycle 2 Proposal Call

Instruments

For more details and context, it is recommended to read the following publications:

VBI: Visible Broadband Imager: https://ui.adsabs.harvard.edu/abs/2021SoPh..296..145W/abstract
ViSP: Visible Spectro-Polarimeter: https://ui.adsabs.harvard.edu/abs/2022SoPh..297...22D/abstract
DL-NIRSP: Diffraction Limited Near Infrared Spectro-Polarimeter: https://ui.adsabs.harvard.edu/abs/2022SoPh..297..137J/abstract
Cryo-NIRSP: Cryogenic Near Infrared Spectro-Polarimeter: https://ui.adsabs.harvard.edu/abs/2023SoPh..298....5F/abstract

Cycle 2 Instrument Configurations

Configuration	Instrument Combination
Config 3a CL2 = BS643 CL2a = Window (4%) CL3 = BS680	DL-NIRSP: Ca II 854.2 nm, He I 1083 nm, Fe I 1565 nm. VBI-Red: Hα, Red-Continuum ViSP: any one combination of up to three lines out of Ca II K 393.4 nm, Ca II H 396.8 nm, Sr I 460.7 nm, Hβ 486.1 nm, Mg I b2 517.3 nm, Fe I 525.0 nm, Na I D1 589.6 nm, Fe I 630.2 nm. VBI-Blue: Blue-Continuum filter only.
Config 3c CL2 = BS643 CL2a = BS465 CL3 = BS680	DL-NIRSP: Ca II 854.2 nm, He I 1083 nm, Fe I 1565 nm. VBI-Red: Hα, Red Continuum ViSP: any one combination of up to three lines out of Hβ 486.1 nm, Mg I b2 517.3 nm, Fe I 525.0 nm, Na I D1 589.6 nm, Fe I 630.2 nm. VBI-Blue: Ca II K, G-Band, Blue-Continuum.
Config 1a CL2 = BS950 CL2a = Window (4%) CL3 = Window	DL-NIRSP: He I 1083 nm, Fe I 1565 nm. VBI-Red: No light. ViSP: any one combination of up to three lines out of CaII K 393.4 nm, Ca II H 396.8 nm, Sr I 460.7 nm, Hβ 486.1 nm, Mg I b2 517.3 nm, Fe I 525.0 nm, Na I D1 589.6 nm, Fe I 630.2 nm, Hα 656.3 nm, Ca II 854.2 nm. VBI-Blue: Blue-Continuum filter only.
Config 1b CL2 = BS950 CL2a = BS555 CL3 = Window	DL-NIRSP: He I 1083 nm, Fe I 1565 nm. VBI-Red: No light. ViSP: any one combination of up to three lines out of Na I D1 589.6 nm, Fe I 630.2 nm, Hα 656.3 nm, Ca II 854.2 nm. VBI-Blue: Ca II K, G-Band, Blue-Continuum, Hβ.

OCP Cycle 2 Call Observing Configuration Summary. (*)CL<xx>: Coudé Location <identifier>; (**)BS<xxx>: Beam Splitter <splitting wavelength>, all wavelengths below the indicated wavelength are reflected.

Note: Items below are for reference only to view what was offered in PREVIOUS PROPOSAL CYCLES on the DKIST. Please do not use the information below for the current proposal call, as this is historical information.

Cycle 1 Configurations

The following is a list of the DKIST Cycle 1 Modes and Configurations which were previously offered. Please do not use this material for the current Proposal Call preparation, as it is provided only for reference.

Modes

Instrument

VBI

ViSP

Cryo-NIRSP

VBI-B

VBI-R

Wavelengths

· CaII K

· G-Band

· Blue Continuum

· Hβ

· Hα,

· Red Continuum

· TiO

· FeXI

· CaII H 396.8 nm

· FeI 630.2 nm

· CaII 854.2 nm

· CO 4.67 microns

· HeI 1083 nm

· Context Imager in HeI only

Modes

· Speckle enabled

No frame selection

· Speckle enabled

No frame selection

· Spectro-polarimetry (only ViSP’s polarimetric mode, no intensity mode)

· Spectro-polarimetry for HeI 1083 nm

· Spectroscopy for CO 4.67 microns

FOV

· 45 arcsec² (central)

· 2 arcmin²(full)

No ROI selection

· 69 arcsec² (central)

· 2 arcmin² (full)

No ROI selection

· Entire spatial scanning range as allowed by the ViSP IPC*

· All slits

No ROI selection

Entire spatial scanning range as allowed by the Cryo-NIRSPs IPC*

No ROI selection

(*) IPC: Instrument Performance Calculator.

Configurations

Configuration

Instrument Combination

Comments

Config 1a

CL2* = Mirror

Cl2a = Window

· ViSP: CaII H 396.8 nm, FeI 630.2 nm, CaII 854.2 nm

· VBI-B: Blue Continuum

· No light for VBI-R

Also fulfills any of the ViSP lines individually or in pairs with VBI-B Blue Continuum.

Config 1b

CL2 = Mirror

CL2a = BS555**

· ViSP: FeI 630.2 nm, CaII 854.2 nm

· VBI-B: all filters

· No light for VBI-R

Also fulfills any of the two lines individually with all VBI-B filters or a subset of those.

Config 2a

CL2 = BS643

CL2a = Window

· ViSP: CaII H 396.8 nm, FeI 630.2 nm

· VBI-B: Blue Continuum

· VBI-R: all filters

Also fulfills any of the two lines individually with all VBI-R filters or a subset of those.

Config 2b

CL2 = BS643

CL2a = BS555

· ViSP: FeI 630.2 nm

· VBI-B: all filters

· VBI-R: all filters

Also fulfills any combination of VBI-B and VBI-R filters with/without the ViSP.

(*)CL<xx>: Coudé Location <identifier>; (**)BS<xxx>: Beam Splitter <splitting wavelength>, all wavelengths below the indicated wavelength are reflected.