urn:nasa:pds:context:instrument:orm.galileo_zeiss3m5.dolores 1.3 1.25.0.0 Product_Context 2026-07-07 1.3 Removed duplicate Internal_Reference entries from Reference_List. 2025-12-24 1.2 Updated schema version. Adding missing "telescope" references. 2025-01-02 1.1 Updated schema version. Update instrument type/subtype to use valid CTLI LDD. 2020-02-18 1.0 Initial export from OLAF urn:nasa:pds:context:telescope:orm.galileo_zeiss3m5 instrument_to_telescope DOLORES (Device Optimized for LOw RESolution) Imager Spectrometer DOLORES (Device Optimized for LOw RESolution) is a focal reducer instrument installed at the Nasmyth B focus of the Telescopio Nazionale Galileo at La Palma. The detector is a 2048 x 2048 E2V 4240 thinned back-illuminated, deep-depleted, Astro-BB coated CCD with a pixel size of 13.5 microns. The scale is 0.252 arcsec/pixel which yields a field of view of about 8.6 x 8.6 arcmin. The instrument allows imaging through broad and narrow band filters as well as spectroscopic observations with resolving powers between RS = ~500 and RS = ~6000. A multi-slit mode, based on custom masks manufactured by a dedicate cutting machine, is also available. Grisms: Name disp. wavelength range (A) Resolution A/Pix min central max (1" slit) LR-B 2.52 3000 5850 8430 585 LR-R 2.61 4470 7400 10073 714 V390 0.26 3634 3900 4166 3766 V486 0.20 4612 4725 4838 5953 V510 0.22 4875 5100 5325 5950 V589 0.27 5619 5895 6171 5502 V656 0.32 6232 6560 6888 5248 V860 0.44 8149 8600 9051 4000 VHRV 0.95 4752 5725 6698 1527 VHRR 0.70 6238 7000 7717 2513 VHRI 0.68 7433 8130 8826 3035 Notes: 1. The LR-R Grism has a built-in order-blocking filter cutting blueward ~5000 angstroms; nevertheless, blue objects will show noticeable second-order overlap above ~9500 angstroms. 2. The V390 Grism is not mounted on the grism wheel and may be used ONLY in visitor mode. Users interested in using this grism must explicitly request it in the Observing Proposal. 3. The V860, VHRR, and VHRI Grisms suffer from significant second-order effect and will be automatically coupled with the ~560 nm cut-on filter available on the filters wheel. 4. Resolution calculated for a 1" Slit. 5. Please note that there aren't suitable wavelength calibration lamps for the V486 GRISM.