1. Filters
  2. Filters

Filters

Filter FWHM (Å) CWL (Å) Telescope Instrument Plot Data Comments
M2030 Gemini South Phoenix M2030 Start (cm-1 μm): 1980=5.050 - Stop (cm-1 μm): 2080=4.808 - Echelle order 11
M1930 Gemini South Phoenix M1930 Start (cm-1 μm): 1890=5.291 - Stop (cm-1 μm): 1970=5.076 - Echelle order 11
M Washington k1007 1140.00 5100.00 Nicholas U. Mayall 4-meter Telescope Mosaic M Washington k1007 M Washington k1007 Note that there is a shift in central wavelength when placed in different f/ratio beams. At the KPNO 4meter f/3.1 beam this corresponds to a shift of approximately 12 Angstroms bluer; at the CTIO 4meter f/2.9 this corresponds to a shift of approximately 15 Angstroms bluer; at the WIYN 0.9m f/7.9 this corresponds to a shift of approximately 5 Angstroms bluer. See plot at the bottom of the page.
M Washington k1007 Nicholas U. Mayall 4-meter Telescope Mosaic M Washington k1007 M Washington k1007 Below is a plot of the transmission of this filter when used at telescopes with differing focal ratios and central obscurations; the KPNO 4m (f/3.1), the CTIO 4m (f/2.9), and the WIYN 0.9m (f/7.9). At the KPNO 4m f/3.1 the properties of this filter are: CWL=5168A, FWHM=1126A, PEAK TRANSMISSION=86.5%.
M Washington c6007 1020.00 5020.00 Nicholas U. Mayall 4-meter Telescope Mosaic M Washington c6007 M Washington c6007 Note: The central wavelength of CTIO Mosaic narrow band filters (actually all filters, but is very significant for narrow band filters) is shifted ~15A to the BLUE in the f/2.87 beam of the Blanco 4m + PFADC corrector as compared to the transmission measured in parallel light. The central wavelength quoted below is nominally for when the filter is used at PF, with the ~15A shift included. Furthermore, the filter transmission curve presented below shows the simulated filter transmission curve for the Blanco 4m + PFADC f/2.87 beam.
M Wash. 5040/990 990.00 5040.00 SMARTS Consortium: 0.9-meter Telescope BLANK M Wash. 5040/990 M Wash. 5040/990 Size: 4x4 Thick: 8.25
M Wash. 5025/1023 1023.00 5025.00 SMARTS Consortium: 0.9-meter Telescope BLANK M Wash. 5025/1023 Size: 3x3 Thick: 8.08
M Wash. 1023.00 5025.00 WIYN 3.5-meter Telescope Hydra SIZE: 3x3-08.08mm.
M Wash. 990.00 5040.00 WIYN 3.5-meter Telescope Hydra M Wash. M Wash. SIZE: 4x4-8.25mm.
M Wash. 1023.00 5025.00 WIYN 3.5-meter Telescope Hydra SIZE: 3x3-08.08mm.
M Wash 990.00 5040.00 WIYN 3.5-meter Telescope Hydra M Wash. M Wash. SIZE: 4x4-8.25mm.
LU8 646.00 3594.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters LCuSO4+1mmUG2+1mmQuartz - Not available
LU7 631.00 3612.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters LU7 LU7 LCuSO4+1mmUG2+1mmQuartz
LU6 647.00 3593.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters LCuSO4+1mmUG2+1mmQuartz
LU10 652.00 3595.00 KPNO 2.1-meter Telescope KPNO 4-Inch Filters LU10 LU10 LCuSO4+1mmUG1 +1mmQuartz -- 2.1 meter set
LPRIME 7008.00 37800.00 Gemini North NIRI LPRIME LPRIME
Low airglow 132.00 1060.00 WIYN 3.5-meter Telescope WHIRC Low airglow
L3290 Gemini South Phoenix L3290 Start (cm-1 μm): 3240=3.085 - Stop (cm-1 μm): 3355=2.980 - Echelle order 19
L3100 Gemini South Phoenix L3100 Start (cm-1 μm): 3030=3.300 - Stop (cm-1 μm): 3145=3.180 - Echelle order 17
L3010 Gemini South Phoenix L3010 Start (cm-1 μm): 2950=3.390 - Stop (cm-1 μm): 3050=3.279 - Echelle order 17
L2870 Gemini South Phoenix L2870 Start (cm-1 μm): 2820=3.545 - Stop (cm-1 μm): 2910=3.436 - Echelle order 16
L2734 Gemini South Phoenix L2734 Start (cm-1 μm): 2680=3.731 - Stop (cm-1 μm): 2770=3.610 - Echelle order 15
L2462 Gemini South Phoenix L2462 Start (cm-1 μm): 2410=4.149 - Stop (cm-1 μm): 2495=4.008 - Echelle order 14
KXS 320.00 2150.00 Nicholas U. Mayall 4-meter Telescope NEWFIRM KXS
Kshort_G1105 3107.00 21500.00 Gemini South GSAOI Kshort_G1105 Kshort_G1105
KSHORT 2965.00 21500.00 Gemini North NIRI KSHORT KSHORT
KS 318 312.00 2129.00 Nicholas U. Mayall 4-meter Telescope NEWFIRM Use with 3103
KS 313 315.00 2128.00 Nicholas U. Mayall 4-meter Telescope NEWFIRM Use with 3103. These filters have never been used in NEWFIRM.
Ks 21500.00 Víctor M. Blanco 4-meter Telescope ISPI ISPI Broad Band Filter. Wavelengths @80% (micron): 1.9915 - 2.2955
Ks 343.00 2168.00 WIYN 3.5-meter Telescope WHIRC Ks
Kron-Cousins Rc 6410.00 SOAR Telescope Goodman Goodman Spectrograph circular 4 inch diameter filters - Central wavelength = 641
Kprime_G1104 3406.00 21200.00 Gemini South GSAOI Kprime_G1104 Kprime_G1104
KPRIME 3361.00 21200.00 Gemini North NIRI KPRIME KPRIME
KPNO-V SMARTS 1.3-meter Telescope ANDICAM KPNO-V KPNO-V CCD Filter
KPNO-I SMARTS 1.3-meter Telescope ANDICAM KPNO-I KPNO-I CCD Filter
KPNO-B SMARTS 1.3-meter Telescope ANDICAM KPNO-B KPNO-B CCD Filter
kplu9 655.00 3590.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kplu9 Liq.CUSO4+UG2 :: spare
kplu5 623.00 3613.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kplu5 CUSO4+UG2 "U" filled 5/89
kplu4 620.00 3618.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter CUSO4+UG2 "U" filled 5/89
kplu3 634.00 3605.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kplu3 Arlo's CCD set "U" notify Arlo if changed- CUSO4+UG2
kplu2 651.00 3594.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter CUSO4+UG2 "U"
kplu1 603.00 3623.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter CUSO4+UG2 "U" filled 5/89
kp995 128.00 5314.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter
kp994 164.00 4556.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter Has major red leak!
kp971 916.00 5383.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp971 kinman system
kp970 1068.00 4449.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp970 kinman system
kp947 30.00 3630.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter o II
kp946 11.00 6298.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp946
kp933t 234.00 5553.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp933t stromgren y 4c set
kp933t 234.00 5553.00 KPNO 2.1-meter Telescope KPNO 2-Inch Filter kp933t stromgren y 4c set
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