Old filters not used anymore
The NOAO MOSAIC Imager II (as did the BTC before it) takes square filters 146 x 146 mm, 12 mm thick. We are slowly increasing our stock of filters in this size, so if you don't see what you need here, please contact us. What do we have, and what are the focus offsets? [1]
The SOAR Optical Imager (minimosaic of two 2Kx4K EEV CCDs) and the Schmidt use 4 inch square filters up to 10 mm thick. We have quite a selection of filters in this size, see the 3" & 4"filter list [2]. Recent acquisitions are:
For Cass imaging we use 3 inch square filters up to 10 mm thick. We have quite a good selection of filters in this size too. The cass filter wheel assembly has two wheels holding up to 8 3x3 filters each. We also have a single module that can hold 5 4x4 filters, so filters in this size can be used if we don't have a 3x3 equivalent.
Now and then people have asked to use one or more of our 2x2 inch interference filters due to not having it in 3x3 or 4x4 inch size, being prepared to accept some vignetting. Be warned! Most of these filters are many years old, and some have seen a lot of use. If you want to use some weird filter it's better to (a) buy one yourself, or (b) convince us to buy it for you. Filters can take a long time to make (several months to over a year for the 146x146 mm narrow band filters). Prices vary with manufacturer, and the specifications you ask for, we can recommend if you like. Plan on spending $2500 - $5000 for a 146 x 146 mm filter, half that for 3x3 inch or 4x4 inch.
Alistair Walker 17 April 2000, updated 4 April 2006
A. Walker 18 Dec 2002
The Mosaic II imager, used at the Blanco 4-m prime focus, takes filters that are 146x146mm and 12mm (nominal) thick.
Focus offsets are referred to the R filter, since this is the filter we use for taking focus frames each night when the Mosaic is installed in order to monitor telescope performance.
We are (slowly) measuring these filters, let us know if there is any one you particular want to have us scan. Note that the Sloan set (griz) and the Johnson-Cousins BVR (but not I) sets should be near-identical to those at KPNO, see the KPNO Mosaic Filters. [3]
A set of standardized filter names and IDs have been developed to ensure proper application of astrometric solutions and real-time display processing (as well as future archive uniformity). These official names are listed in the Mosaic filter list [4]web page.
Filter |
Center wavelegth |
fwhm |
focus offset microns |
NOAO code |
Status |
U | 3570 | 650 | -185 | c6001 | OK |
B | 4360 | 990 | +10 | c6002 | OK |
V | 5370 | 940 | +30 | c6026 | from 21 OCT 2000 |
R | 6440 | 1510 | 0 | c6004 | OK ... filter offset ref |
I | 8050 | 1500 | +10 | c6028 | from 24 May 2003 |
VR Stubbs aka VR Supermacho |
6100 | 2000 | 0 | c6027 | transmission curve [5] |
C (Wash) | 4000 | 1000 | +260 | c6006 | OK |
M (Wash) | 5020 | 1020 | +260 | c6007 | OK |
D51 (DDO) | 5130 | 154 | -55 | c6008 | OK |
[OII] | 3727* | 50 | ? | c3012 | not tested yet |
[OIII] | 4990* | 60 | +130 | c6014 | OK |
Halpha | 6563* | 80 | +65 | c6009 | cwl, fwhm nominal |
Halpha+8 | 6650* | 80 | -35 | c6011 | cwl, fwhm nominal |
[SII] | 6725* | 80 | +60 | c6013 | cwl, fwhm nominal |
u (SDSS) | 3600 | 400 | +230 | c6021 |
cwl, fwhm approx, Red Leak! [6] |
g (SDSS) | 4813 | 1537 | +30 | c6017 |
"set #2" (in use 8/2000-) |
r (SDSS) | 6287 | 1468 | +120 | c6018 |
"set #2" in use 8/2000-) |
i (SDSS) | 7732 | 1548 | -20 | c6019 |
"set #2" (in use 8/2000-) |
z (SDSS) | 9400 | 2000 | -15 | c6020 | OK |
Bj (Tyson) | 4350 | 1650 | ? | c6024 |
#3, on loan from A. Tyson |
I (Tyson) | 8800 | 2000 | ? | c6025 | cwl, fwhm approx |
White | 6500 | 5000 | ? | c6016 |
just a piece of fused silica |
|
|||||
Retired Filters | |||||
g (SDSS) | 4825 | 1380 | ? | c6015 |
"set #3", red cut-off a bit too red (in use <8/2000) |
V | 5370 | 940 | 115 | c6003 |
small chip in corner, in use <10/2000 |
Bj | 4350 | 1650 | ? | -- | broken... |
Bj | 4350 | 1650 | ? | -- | broken... |
I | 8050 | 1500 | +25 | c6005 |
Filter damaged Nov 2002- The are civered by CCD-1 (SW corner) is unusable |
* = NOTE that the central wavelength of narrow band filters (actually all filters, but it is only significant for narrow band filters) is shifted aprox. 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 wavelengths quoted above are nominally for when the filters are used at PF, with the aprox. 15A shift included.
Last updated: 2003 June 4 by C.Smith
Staff Contacts:
Alistair Walker: awalkerATnoao.edu
Chris Smith: csmithATnoao.edu
Subject: There is a leak -- just how much does it matter -- your call
Date: Fri, 8 Mar 2002 16:25:43 -0700 (MST)
From: Buell Jannuzi
Hi Guys,
Well there is a red leak in the ctio SDSS u' filter -- at a very low level, but perhaps enough to explain the flat field counts Mauro reports -- I'm afraid I have not had time to think this through carefully. Below are attached the asci data files containing the traces (done in the center of the filter) made by Jim DeVeny. The good news is that in the band-pass the ctio SDSS u' filter is a good match to the tracing I have on file for the actual SDSS u' filter (measured in air -- not in vacuum as actually used). The bad news is that while the SDSS u' does not appear to have a red leak (actual measurements of that filter between 8100 and 1100 angstroms so nothing), apparently because in addition to the 1mm UG11 + 1mm BG38 there is a film to, and now I'm quoting the message I got in 1996 about this filter, "suppresses a strong leak around 7000 Angstroms and acts as an AR coating in the passband. Now, the ctio SDSS u' filter does not have strong leak at 7000 -- but does have a leak near H-alpha (0.04%, tiny), with an increasing leak longward of 8000, but again, not huge -- but very significantly different from the SDSS filter.
As I said, I'm not 100% sure the measured leak accounts for Mauro's measured count difference in the flats he took last night -- but given the tracing I'm hard pressed to understand how the ctio SDSS u' filter could yield more counts than the Harris U without there being a significant leak (one might have hoped that the poor red response of the CCDs might have helped, but it looks like they are hot enough in the red to see some of the leaked light).
Buell
Attached files:
Note that the two data files will differ ever so slightly in the region covered by both tracings, but the slit used was 5 times larger (lower res) in the second set up.
Band/ Wavelength |
Filter ID (Text Data) |
Filter ID (Graph) |
Available for ISPI * |
Comment |
Y | 191A [11] | 191A [12] | 30mm Barr | |
Y | 191B [13] | 191B [14] | 50mm Barr | |
Y | 191C [15] | 191C [16] | 65mm Barr | |
Y | 191D [17] | 191D [18] | 30mm Barr | |
I | 81 [19] | 81 [20] | 25mm inew | |
J | 40 [21] | 40 [22] | 25 mm Jcit | |
J | 82a [23] | 82a [24] | 25mm Jshort | |
J | 183 [25] | 183 [26] | 30mm Barr | |
J | 186 [27] | 186 [28] |
removed, 2004b |
60mm OCLI, Gemini, ISPI |
J | 192 [29] | 192 [30], scan [31] | Yes | 65mm Barr |
H | 44 [32] | 44 [33] | 25mm OCLI | |
H | 184 [34] | 184 [35] | 30mm Barr | |
H | 187 [36] | 187 [37] |
removed, 2004b |
60mm OCLI, Gemini, ISPI |
H | 190 | 190 [38] | Yes | 65mm Barr |
K | 50 [39] | 50 [40] | 25mm OCLI | |
K | 185 [41] | 185 [42] | 30mm Barr | |
K' | 188 | 188 |
removed, 2004b |
60mm OCLI, Gemini, ISPI |
Kshort | 129 [43] | 129 [44] |
25mm Barr /2MASS |
|
Kshort | 189 | 189 [45] | Yes | 65mm Barr, ISPI |
2.248 H2 | 125 [46] | 125 [47] | 25mm Barr | |
2.248 H2 | 199 | 199 | Yes | 65mm Omega |
2.19 He II | 138 [48] | 138 [49] | 25mm Omega | |
2.19 HeII | 198 | 198 | Yes | 65mm Omega |
2.166w Brg | 132 [50] | 132 [51] |
25mm Barr, wedged |
|
2.16 | 165 [52] | 165 [53] | 25mm Omega | |
2.16 Brg | 197 | 197 | Yes | 65mm Omega |
2.144w cont | 131 [54] | 131 [55] |
25mm Barr, wedged |
|
2.14 cont | 164 [56] | 164 [57] | 30mm Omega | |
2.14 cont | 200 | 200 | Yes | 65mm Omega |
2.122w H2 | 130 [58] | 130 [59] |
25mm Barr, wedged |
|
2.12 H2 | 89 [60] | 89 [61] | 25mm Barr | |
2.12 H2 | 163 [62] | 163 [63] | 25mm Omega | |
2.12 H2 | 196 | 196 | Yes |
65mm Omega, bad ghosts |
2.08 C IV | 136 [64] | 136 [65] | 25mm Omega | |
2.08 C IV | 195 | 195 | Yes | 65mm Omega |
2.06 He I | 135 [66] | 135 [67] | 25mm Omega | |
2.06 He I | 194 | 194 | Yes | 65mm Omega |
2.03 cont | 134 [68] | 134 [69] | 25mm Omega | |
2.03 cont | 193 | 193 | Yes | 65mm Omega |
1.644 [Fe II] | 128 | 128 [70] | 25mm Barr | |
1.28 Palpha | 110 [71] | 110 [72] | 25mm Barr | |
1.257 [FeII] | 111 [73] | 111 [74] | 25mm Barr |
* Check the ISPI pages [75] to see if the filter is currently in the ISPI Dewar.
The filters listed above have seen recent use in Tololo imagers. There are other filters available. Observers should check with the staff noted below if there is a filter or transmission curve not listed above which would be of interest.
In response to an increasing number of requests, we are starting to place digital versions of the transmission data for some of our filters here. The user should take some care to verify that the filter is valid for the instrument he or she is considering at the time of use in question. The actual filter in use will in general not be the exact filter for which we have transmission data, but rather be one of the same batch. The numbers refer to the CTIO filter ID by which the filter data is archived. In case of doubt, consult with Nicole van der Bliek, Patrice Bouchet, Bob Blum, Brooke Gregory.
10 March, 2006 [rdb]
Position | Filter |
Focus Offset relative to V |
Filter Transmission curves |
|
Plot | Data File | |||
2 | B | +25 | y4kcam_b.pdf [76] | y4kcam_B.txt [77] |
3 | V | 0 | y4kcam_v.pdf [78] | y4kcam_V.txt [79] |
4 | RC | -25 | y4kcam_r.pdf [80] | y4kcam_Rc.txt [81] |
5 | IC | +25 | y4kcam_i.pdf [82] | y4kcam_Ic.txt [83] |
6 | U+CuSO4 | +125 | ||
8 | SDSS u | -50 | y4kcam_sdss_u.pdf [84] | sdss_u.txt [85] |
9 | SDSS g | -25 | y4kcam_sdss_g.pdf [86] | sdss_g.txt [87] |
10 | SDSS r | -50 | y4kcam_sdss_r.pdf [88] | sdss_r.txt [89] |
11 | SDSS i | -25 | y4kcam_sdss_i.pdf [90] | sdss_i.txt [91] |
12 | SDSS z | -70 | y4kcam_sdss_z.pdf [92] | sdss_z.txt [93] |
D. Maturana April 28,1995, updated 29 March 1999
Warning! Many of the 2x2 interference filters are now VERY old, and are not in great shape physically (scratches, coating deteoriation etc). Passband shifts can be expected too. Filters this size vignette on all our present imaging CCD systems.
Click here [94] for tabulated transmissions of other filters where available.
FILTER /width |
SIZ (") |
Thick (mm.) |
Cent. (A.) |
fwhm (A.) |
Trans (%) |
FILTSET |
Transm curve (.txt) |
COMMENTS |
2x2 | 4.22 | B std PFCCD | ||||||
2x2 | 3.20 | I 34 PFCCD | ||||||
2x2 | 4.18 | V std PFCCD | ||||||
3085/75 [95] | 1"d | 7.27 | 3085 | 75 | 38.50 | Comet Set | 3085/75 [96] | |
3510/300 [97] | 2x2 | 9.24 | 3510 | 300 | 33.60 | u2 Strom.set 1 | 3510/300 [98] | |
3515/290 [99] | 2x2 | 9.30 | 3517 | 280 | 35.11 | u1 Strom.set 1 | 3515/290 [100] | |
3520/300 [101] | 2"d | 9.63 | 3520 | 296 | 37.50 | u Strom.set 2 | 3520/300 [102] | |
3525/320 | 2x2 | 9.03 | 3525 | 320 | 36.00 | u Strom.set 3 | ||
3530/280 [103] | 4x4 | 9.15 | 3530 | 280 | 37.14 | u Strom. 4x4 | 3530/280 [104] | |
3530/400 [105] | 2x2 | 6.03 | 3539 | 386 | 28.01 | u Gunn-T set 1 | 3530/400 [106] | |
3570/660 | 2x2 | 8.78 | 3570 | 660 | 84.34 | U liq.cuso4 1 | ||
3570/660 | 3x3 | 3570 | 660 | 80.59 | U liq.CuS04 Tek set#2 | |||
3572/665 | 2x2 | 8.68 | 3572 | 665 | 82.50 | U liq.cuso4 2 | ||
3575/600 [107] | 3x3 | 9.09 | 3575 | 600 | 74.21 | U liq.CuSo4 Tek set#1 | 3575/600 [108] | |
3575/670 | 2x2 | 8.73 | 3575 | 670 | 82.90 | U liq.cuso4 3 | ||
3580/610 [109] | 4x4 | 9.32 | 3580 | 610 | 74.66 | U Liq.Cuso4 set#1 | 3580/610 [110] | 4mts |
3590/660 | 2x2 | 3590 | 660 | 87.20 | U Liq.CuSo4 4 | 1mt. guider box | ||
3623/605 [111] | 3x3 | 8.83 | 3623 | 605 | 67.66 | U liq.CuSo4 Tek set#3 | 3623/605 [112] | |
3650/100 [113] | 1"d | 6.52 | 3651 | 79 | 44.00 | Comet Set | 3650/100 [114] | |
3650/600 [115] | 2x2 | 5.93 | 3641 | 470 | 34.56 | U ctio ("new") | 3650/600 [116] | |
3700/110 [117] | 2x2 | 4.03 | 3698 | 97 | 46.95 | 3700/110 [118] | red leak (9000A) | |
3727/21 [119] | 2x2 | 6.04 | 3735 | 24 | 30.39 | 3727/21 [120] | ||
3727/44 [121] | 2x2 | 6.19 | 3728 | 58 | 33.24 | H beta set | 3727/44 [122] | one face coated |
3727/45 [123] | 2x2 | 4.22 | 3727 | 40 | 28.06 | 3727/45 [124] | ghost images? | |
3765/45 [125] | 2x2 | 4.23 | 3770 | 43 | 24.52 | 3765/45 [126] | ||
3767/44 [127] | 2x2 | 6.20 | 3765 | 52 | 34.83 | H beta set | 3767/44 [128] | one face coated |
3800/110 [129] | 2x2 | 4.58 | 3797 | 110 | 34.85 | 3800/110 [130] | ||
3870/50 [131] | 1"d | 9.10 | 3877 | 39 | 25.00 | Comet Set | 3870/50 [132] | |
3980/400 [133] | 2x2 | 6.02 | 3987 | 398 | 47.95 | v Gunn-T set 1 | 3980/400 [134] | |
3986/1047 [135] | 2x2 | 5.99 | 3986 | 1047 | 62.70 | C Wash. set #3 | ||
3996/1042 [136] | 3x3 | 8.11 | 3996 | 1042 | 62.70 | C Wash. | ||
4000/1030 [137] | 4x4 | 8.45 | 4000 | 1030 | 62.45 | C Wash. | ||
4060/70 [138] | 1"d | 8.23 | 4061 | 75 | 46.50 | Comet Set | 4060/70 [139] | |
4100/160 | 2x2 | 9.73 | 4110 | 160 | 60.00 | v Strom.set 3 | ||
4110/190 [140] | 2x2 | 4.79 | 4125 | 182 | 44.99 | v Strom.set 1 | 4110/190 [141] | |
4118/146 [142] | 4x4 | 9.87 | 4118 | 146 | 52.04 | v Strom. 4x4 | 4118/146 [143] | |
4120/160 [144] | 2"d | 8.43 | 4126 | 172 | 59.11 | v Strom.Set 2 | 4120/160 [145] | |
4166/83 | 1"d | 7.53 | 4167 | 90 | 63.00 | DDO set | ||
4185/1030 [146] | 4x4 | 5.40 | 4185 | 1030 | 70.44 | B Harris set#1 | 4mts | |
4x4 | B Set# 2 Schmidt | |||||||
4201/1050 [147] | 3x3 | 5.17 | 4200 | 1050 | 66.48 | B Tek set#1 | ||
4202/1050 [148] | 3x3 | 4200 | 1050 | 66.16 | B Tek set#2 | |||
4203/1050 [149] | 3x3 | 5.26 | 4200 | 1050 | 66.72 | B Tek set#3 | ||
4257/73 | 1"d | 7.51 | 4260 | 77 | 77.00 | DDO set | ||
4260/65 [150] | 1"d | 6.04 | 4278 | 70 | 44.50 | Comet Set | 4260/65 [151] | |
4324/1050 [152] | 2x2 | 4.15 | 4300 | 1050 | 73.00 | B Harris set 1 | ||
4324/1056 [153] | 2x2 | 4.11 | 4324 | 1056 | 71.00 | B Harris set 3 | ||
4324/1156 [154] | 2x2 | 4.05 | 4324 | 1156 | 72.00 | B Harris set 2 | ||
4340/980 [155] | 3x3 | 6.38 | 4341 | 980 | 60.33 | Harris set 1 | 4340/980 [156] | |
4345/980 | 3x3 | 6.33 | 4345 | 980 | 60.85 | Harris set 2 | ||
4350/1680 [157] | 2x2 | 4.00 | 4350 | 1680 | 89.14 | B Tyson "J" | coated both sides | |
4357/1665 [158] | 4x4 | 3.65 | 4357 | 1665 | 88.19 | B Tyson "J" | coated both sides | |
4363/20 [159] | 2x2 | 5.98 | 4358 | 19 | 31.16 | 4363/20 [160] | ||
4380/1086 | 2x2 | 5.75 | 4380 | 1086 | 77.00 | B-14 | ||
4390/1060 | 2x2 | 5.68 | 4390 | 1060 | 78.00 | B-3 | ||
4390/1109 | 2x2 | 5.98 | 4390 | 1109 | 77.00 | B-15 | ||
4410/1109 | 2x2 | 5.71 | 4410 | 1109 | 78.00 | B-16 | ||
4440/1125 | 2x2 | 5.68 | 4440 | 1125 | 79.00 | B-13 | ||
4517/76 | 1"d | 7.59 | 4516 | 77 | 75.00 | DDO set | ||
4650/190 [161] | 2x2 | 3.56 | 4654 | 173 | 55.09 | b Strom.set 1 | ||
4685/44 [162] | 2x2 | 6.08 | 4682 | 42 | 75.85 | H beta set | 4685/44 [163] | one face coated |
4686/15 [164] | 2x2 | 4.72 | 4685 | 13 | 29.77 | 4686/15 [165] | ||
4695/15 [166] | 2x2 | 5.54 | 4692 | 15 | 34.60 | 4695/15 [167] | ||
4697/196 [168] | 4x4 | 9.85 | 4697 | 196 | 71.27 | b Str”m. 4x4 | 4697/196 [169] | |
4700/190 [170] | 2"d | 6.99 | 4724 | 190 | 69.12 | b Strom.set 2 | 4700/190 [171] | |
4705/175 | 2x2 | 8.18 | 4705 | 175 | 79.30 | b Strom.set 3 | ||
4845/65 [172] | 1"d | 6.18 | 4846 | 69 | 74.00 | Comet set | 4845/65 [173] | |
4857/12 [174] | 2x2 | 4.33 | 4858 | 14 | 51.73 | 4857/12 [175] | ||
4861/26 [176] | 2"d | 3.70 | 4854 | 27 | 56.00 | 4861/26 [177] | ||
4861/44 [178] | 2x2 | 6.07 | 4858 | 38 | 78.85 | H beta set | 4861/44 [179] | one face coated |
4861/50 [180] | 2x2 | 8.22 | 4872 | 53 | 58.66 | 4861/50 [181] | ||
4862/14 [182] | 2x2 | 8.22 | 4860 | 14 | 66.00 | 4862/14 [183] | ||
4866/12 [184] | 2x2 | 4.31 | 4859 | 15 | 48.34 | 4866/12 [185] | ||
4880/70 [186] | 2x2 | 4.26 | 4888 | 70 | 64.79 | 4880/70 [187] | ||
4886/186 | 1"d | 7.57 | 4890 | 195 | 76.00 | DDO set | ||
4905/44 [188] | 2x2 | 6.04 | 4899 | 40 | 77.30 | H beta set | 4905/44 [189] | one face coated |
4940/700 [190] | 4x4 | 8.95 | 4920 | 670 | 93.09 | Gunn g | 4940/700 [191] | |
4949/44 [192] | 2x2 | 6.06 | 4948 | 46 | 81.80 | H beta set | 4949/44 [193] | one face coated |
4993/44 [194] | 2x2 | 6.07 | 4993 | 40 | 80.65 | H beta set | 4993/44 [195] | one face coated |
5000/70 [196] | 2x2 | 4.04 | 4994 | 77 | 63.41 | 5000/70 [197] | ||
5007/22 | 2x2 | 9.33 | 5007 | 20 | 69.65 | old Fabry-Perot | ||
5007/44 [198] | 2x2 | 6.19 | 5005 | 39 | 77.19 | H beta set | 5007/44 [199] | one face coated |
5013/14 [200] | 2x2 | 9.61 | 5015 | 17 | 64.63 | Old Fabry Perot | 5013/14 [201] | LMC Redshift |
5019/50 [202] | 4x4 | 7.83 | 5027 | 50 | 79.48 | 5019/50 [203] | ||
5024/15 [204] | 2x2 | 3.46 | 5026 | 16 | 43.63 | 5024/15 [205] | internal fringes | |
5025/1020 [206] | 2x2 | 8.13 | 5025 | 1020 | 82.87 | M Wash. set#3 | ||
5025/1023 [207] | 3x3 | 8.08 | 5025 | 1023 | 88.60 | M Wash. | ||
5029/43 [208] | 2x2 | 3.92 | 5030 | 46 | 42.07 | Rutgers F-P | 5029/43 [209] | |
5032/15 [210] | 2x2 | 5.56 | 5032 | 15 | 41.50 | 5032/15 [211] | internal fringes | |
5037/44 [212] | 2x2 | 6.05 | 5036 | 39 | 83.59 | H beta set | 5037/44 [213] | one face coated |
5040/15 [214] | 2x2 | 5.60 | 5038 | 16 | 36.58 | 5040/15 [215] | ||
5040/990 [216] | 4x4 | 8.25 | 5040 | 990 | 88.23 | M Wash. | 5040/990 [217] | |
5049/15 [218] | 2x2 | 5.56 | 5049 | 14 | 38.15 | 5049/15 [219] | internal fringes | |
5057/15 [220] | 2x2 | 5.57 | 5057 | 14 | 39.28 | 5057/15 [221] | internal fringes | |
5081/44 [222] | 2x2 | 6.03 | 5083 | 39 | 82.41 | H beta set | 5081/44 [223] | one face coated |
5100/100 [224] | 1x1 | 5.16 | 5098 | 88 | 61.00 | 5100/100 [225] | 3/4"d usefull | |
5117/895 [226] | 2x2 | 5.07 | 5117 | 895 | 81.39 | g Gunn-T set 2 | 5117/895 [227] | |
5118/900 [228] | 3x3 | 5.05 | 5118 | 900 | 81.39 | g Gunn-T | 5118/900 [229] | |
5125/44 [230] | 2x2 | 6.03 | 5116 | 40 | 81.87 | H beta set | 5125/44 [231] | one face coated |
5130/155 [232] | 4x4 | 7.76 | 5121 | 133 | 84.13 | DDO 51 Wash. set | ||
5140/90 [233] | 1"d | 6.19 | 5137 | 87 | 62.00 | Comet set | ||
5140/153 [234] | 2"d | 9.36 | 5140 | 153 | 88.84 | DDO51-1 | in Wash set#3 | |
5145/30 [235] | 2x2 | 5145 | 30 | 56.84 | Rutgers F-P | |||
5145/80 [236] | 2x2 | 4.40 | 5152 | 80 | 60.69 | 3c | ||
5169/44 [237] | 2x2 | 6.07 | 5161 | 44 | 79.58 | H beta set | one face coated | |
5182/10 [238] | 2x2 | 5175 | 12 | 52.71 | Rutgers F-P | |||
5200/95 | 3/4 | 3.93 | 5187 | 95 | 64.00 | round filter | ||
5213/44 [239] | 2x2 | 6.05 | 5213 | 44 | 78.20 | H beta set | one face coated | |
5257/44 [240] | 2x2 | 6.03 | 5259 | 44 | 79.34 | H beta set | one face coated | |
5295/1590 [241] | 4x4 | 5.24 | 5292 | 1625 | 90.66 | HST "V" | thin film coating | |
5362/895 | 3x3 | 6.14 | 5362 | 895 | 76.80 | V Harris set 1 | ||
5370/900 | 3x3 | 6.18 | 5370 | 900 | 75.64 | V Harris set 2 | ||
5378/1018 [242] | 2x2 | 3.97 | 5378 | 1018 | 91.00 | V Harris set 3 | ||
5380/1000 [243] | 2x2 | 4.04 | 5380 | 1000 | 91.00 | V Harris set 1 | ||
5400/100 [244] | 2x2 | 5.57 | 5415 | 114 | 46.58 | |||
5409/948 [245] | 2x2 | 4.10 | 5409 | 948 | 90.50 | V Harris set 2 | ||
5435/1081 [246] | 2x2 | 5.72 | 5435 | 1081 | 72.00 | V-14 | ||
5438/1026 [247] | 3x3 | 5438 | 1026 | 91.91 | V Tek set#2 | |||
5443/1060 [248] | 4x4 | 5.12 | 5443 | 1060 | 88.50 | V Harris set#1 | 4mts | |
4x4 | V set#2 Schmidt | |||||||
5460/1118 | 2x2 | 5.72 | 5465 | 1118 | 74.60 | V-16 | ||
5461/100 [249] | 1x1 | 3.71 | 5447 | 96 | 55.00 | |||
5470/1114 | 2x2 | 5.69 | 5470 | 1114 | 74.00 | V-15 | ||
5475/1000 [250] | 3x3 | 5475 | 1000 | 87.71 | V Tek set#1 | |||
5497/241 [251] | 4x4 | 9.74 | 5478 | 244 | 70.83 | y Strom. 4x4 | ||
5500/200 [252] | 2x2 | 3.51 | 5514 | 224 | 62.76 | y Strom.set 1 | ||
5500a240 [253] | 2"d | 7.63 | 5513 | 238 | 74.45 | y Strom.set 2 | ||
5500b240 | 2x2 | 8.82 | 5500 | 260 | 80.00 | y Strom.set 3 | ||
5588/1127 | 3x3 | 5.09 | 5588 | 1127 | 89.44 | V Tek set#3 | ||
5755/20 [254] | 2x2 | 6.03 | 5758 | 20 | 60.19 | |||
5800/100 [255] | 2x2 | 5.55 | 5796 | 108 | 56.35 | |||
5850/1300 | 2x2 | 6.08 | 86.00 | |||||
5877/14 [256] | 2x2 | 9.36 | 5877 | 16 | 75.62 | old Fabry-Perot | ||
5890/40 [257] | 2"d | 8.05 | 5890 | 39 | 74.12 | Rutgers F-P | ||
5894/14 [258] | 2x2 | 5.79 | 5889 | 16 | 56.87 | Rutgers F-P | ||
5900/350 [259] | 2x2 | 6.09 | 5924 | 268 | 62.01 | x Gunn-T set 1 | ||
5915/40 [260] | 2"d | 6.77 | 5917 | 38 | 83.00 | Rutgers F-P | ||
5950/40 [261] | 2"d | 7.43 | 5950 | 44 | 79.4 | Rutgers F-P | ||
5997/40 [262] | 2"d | 7.94 | 5994 | 40 | 74.8 | Rutgers F-P | ||
6087/40 [263] | 2x2 | 7.94 | 6084 | 42 | 71.40 | Rutgers F-P | ||
6100/100 [264] | 2x2 | 5.12 | 6101 | 103 | 53.66 | |||
6120/140 [265] | 3x3 | 7.97 | 6115 | 135 | 85.89 | Supernova | ||
6130/590 [266] | 4x4 | 8.35 | 6130 | 590 | 56.19 | T1 Wash | .9% leak at 1.2u. | |
6152/625 [267] | 3x3 | 8.21 | 6152 | 625 | 58.06 | T1 Wash | 1% leak at 1.0u. | |
6170/590 [268] | 2x2 | 5.07 | 6170 | 590 | 50.88 | T1 Wash. set#3 | 1% leak at 1.0u. | |
6301/10 [269] | 2x2 | 10.98 | 6294 | 13 | 75.00 | old Fabry-Perot | ||
6330/100 [270] | 1"d | 5.03 | 6342 | 93 | 65.15 | 633fs10-25 | fringes | |
6400/1450 [271] | 3x3 | 6400 | 1450 | 81.09 | R Tek set#2 | |||
6410/1470 [272] | 3x3 | 5.23 | 6410 | 1470 | 81.76 | R Tek set#3 | ||
6420/1180 | 2x2 | 5.64 | 6420 | 1180 | 68.00 | R-13 | ||
6425/1500 [273] | 3x3 | 5.25 | 6425 | 1500 | 79.69 | R Tek set#1 | ||
6437/1525 [274] | 4x4 | 5.22 | 6437 | 1525 | 81.38 | R Harris set#1 | 4mts | |
4x4 | R set #2 Schmidt | |||||||
6440/1520 [275] | 2x2 | 3.98 | 6440 | 1520 | 86.00 | R Harris set 1 | ||
6454/1451 [276] | 2x2 | 3.98 | 6454 | 1451 | 85.00 | R Harris set 2 | ||
6465/1300 | 2x2 | 5.64 | 6465 | 1300 | 57.00 | R-10 | bubbles | |
6475/1600 | 3x3 | 6.18 | 6475 | 1600 | 81.70 | R Harris set 1 | ||
6477/1235 | 2x2 | 5.80 | 6477 | 1235 | 59.74 | R-11 | broken corner | |
6477/75 [277] | 2x2 | 6.12 | 6484 | 77 | 83.20 | H alfa set | ||
6484/1532 [278] | 2x2 | 4.06 | 6484 | 1532 | 86.00 | R Harris set 3 | ||
6493/1445 | 3x3 | 6.15 | 6493 | 1445 | 77.00 | R Harris set 2 | ||
6500/1330 | 2x2 | 3.00 | 6500 | 1330 | 92.00 | R 33 PFCCD | ||
6510/1300 | 2x2 | 3.02 | 6510 | 1300 | 90.00 | R 34 PFCCD | ||
6520/76 [279] | 2x2 | 6.15 | 6530 | 71 | 81.09 | H alfa set | ||
6552/40 [280] | 2"d | 6.63 | Rutgers F-P | |||||
6559/5 [281] | 2x2 | 9.08 | 6557 | 7 | 56.12 | old Fabry-Perot | ||
6560/110 [282] | 2x2 | 3.91 | 6591 | 118 | 62.28 | Corion | ||
6560/900 [283] | 4x4 | 9.19 | 6495 | 900 | 94.95 | Gunn r | ||
6563/110 | 2x2 | 4.10 | 6562 | 120 | 62.66 | 3C | ||
6563/12 [284] | 2"d | 7.62 | 6563 | 11 | 66.55 | Rutgers F-P | ||
6563/16 | 1x1 | 6.18 | 6573 | 15 | 79.00 | |||
6563/17 [285] | 2x2 | 9.50 | 6560 | 20 | 77.41 | old Fabry-Perot | bad corner | |
656375-3 [286] | 3x3 | 5.61 | 6559 | 64 | 89.37 | |||
656375-4 [287] | 4x4 | 5.54 | 6567 | 68 | 82.32 | |||
6563/78 [288] | 2x2 | 6.11 | 6568 | 68 | 82.36 | H alfa set | ||
6563/85 | 1x1 | 6.15 | 6586 | 103 | 83.00 | bad corner | ||
6568/20 [289] | 2x2 | 5.61 | 6568 | 19 | 69.81 | H alfa narrow | both faces coated | |
6571/15 [290] | 2"d | 6.01 | 6571 | 16 | 72.21 | Rutgers F-P | ||
6575/14 [291] | 2x2 | 12.33 | 6571 | 18 | 74.12 | Old Fabry Perot | LMC Redshift | |
6584/15 [292] | 2"d | 8.00 | 6583 | 16 | 74.56 | Rutgers F-P | ||
6586/20 [293] | 2x2 | 5.60 | 6583 | 20 | 70.80 | H alfa narrow | both faces coated | |
6586/40 [294] | 2x2 | 5.38 | 6590 | 40 | 80.50 | Rutgers F-P | ||
6600/100 [295] | 2x2 | 4.74 | 6593 | 118 | 62.08 | #1 | ||
6600a110 | 2x2 | 4.77 | 6593 | 118 | 62.08 | #2 | ||
6600b110 [296] | 2x2 | 4.46 | 6597 | 108 | 57.25 | 3c | ||
660075-3 [297] | 3x3 | 5.57 | 6598 | 69 | 87.77 | |||
660075-4 [298] | 4x4 | 5.57 | 6600 | 67 | 84.77 | |||
6602/20 [299] | 2x2 | 5.74 | 6596 | 18 | 70.04 | H alfa narrow | one face coated | |
6606/75 [300] | 2x2 | 6.14 | 6608 | 70 | 84.30 | H alfa set | ||
6618/20 [301] | 2x2 | 5.72 | 6610 | 18 | 72.22 | H alfa narrow | both faces coated | |
6636/20 [302] | 2x2 | 5.71 | 6628 | 19 | 72.49 | H alfa narrow | both faces coated | |
6649/76 [303] | 2x2 | 6.15 | 6650 | 77 | 87.49 | H alfa set | ||
6654/20 [304] | 2x2 | 5.73 | 6645 | 20 | 76.44 | H alfa narrow | both faces coated | |
6672/20 [305] | 2x2 | 5.72 | 6661 | 20 | 72.82 | H alfa narrow | both faces coated | |
6680/100 [306] | 2x2 | 4.54 | 6687 | 112 | 87.59 | CFA set | ||
6693/76 [307] | 2x2 | 6.02 | 6693 | 92 | 87.93 | H alfa set | ||
6700/350 [308] | 2x2 | 6.07 | 6696 | 316 | 61.71 | r Gunn-T set 1 | ||
6705/5 | 1x1 | 6702 | 7 | 42.00 | ||||
6716/13 | 2x2 | 5.23 | 6716 | 13 | 55.00 | |||
6718/20 [309] | 2x2 | 6.19 | 6708 | 26 | 80.32 | H alfa narrow | one face coated | |
6718/5 [310] | 1x1 | 6719 | 6 | 46.00 | ||||
6724/34 | 2x2 | 9.33 | 6726 | 36 | 82.71 | old Fabry-Perot | ||
6724/7 [311] | 2x2 | 5.22 | ||||||
6727/1015 [312] | 2x2 | 5.04 | 6727 | 1015 | 93.83 | r Gunn-T set 2 | ||
6728/1000 [313] | 3x3 | 5.05 | 6728 | 1000 | 93.83 | r Gunn-T | ||
6731/13 | 2x2 | 5.27 | ||||||
6731/6 [314] | 2x2 | 10.88 | 6733 | 7 | 50.61 | old Fabry-Perot | ||
6732/20 [315] | 2x2 | 5.93 | 6730 | 26 | 76.93 | H alfa narrow | one face coated | |
6732/5 | 1x1 | 6737 | 10 | 32.00 | ||||
6737/76 [316] | 2x2 | 6.06 | 6746 | 91 | 86.06 | H alfa set | ||
6738/50 [317] | 4x4 | 7.97 | 6744 | 50 | 87.83 | |||
6781/78 [318] | 2x2 | 6.12 | 6785 | 77 | 78.98 | H alfa set | ||
6820/100 [319] | 2x2 | 4.59 | 6820 | 100 | 87.00 | CFA set | ||
6826/78 [320] | 2x2 | 6.14 | 6832 | 81 | 82.32 | H alfa set | ||
6840/120 | 2x2 | 5.00 | 6903 | 130 | 63.40 | |||
6840/90 [321] | 1"d | 5.91 | 6848 | 90 | 76.80 | Comet set | ||
6850/80 | 2x2 | 4.88 | 6899 | 134 | 61.59 | |||
6860/80 | 2x2 | 4.96 | 6888 | 128 | 62.09 | |||
6871/78 [322] | 2x2 | 6.00 | 6867 | 85 | 86.73 | H alfa set | ||
6890/100 [323] | 2x2 | 6.45 | 6890 | 100 | 83.00 | CFA set | ||
6916/78 [324] | 2x2 | 6.15 | 6916 | 84 | 82.46 | H alfa set | ||
6961/79 [325] | 2x2 | 6.14 | 6967 | 90 | 84.01 | H alfa set | ||
7000/175 [326] | 1"d | 6.11 | 7125 | 175 | 82.00 | Comet set | ||
7007/79 [327] | 2x2 | 6.07 | 7007 | 81 | 75.00 | H alfa set | ||
7053/79 [328] | 2x2 | 6.14 | 7046 | 77 | 77.00 | H alfa set | ||
7080/100 [329] | 2x2 | 6.43 | 7080 | 100 | 83.00 | CFA set | ||
7099/80 [330] | 2x2 | 6.03 | 7101 | 82 | 78.00 | H alfa set | ||
7146/80 [331] | 2x2 | 6.12 | 7146 | 72 | 82.13 | H alfa set | ||
7193/80 [332] | 2x2 | 6.10 | 7198 | 65 | 77.14 | H alfa set | ||
7240/75 [333] | 2x2 | 6.06 | 7235 | 71 | 84.84 | H alfa set | ||
7288/82 [334] | 2x2 | 6.08 | 7280 | 85 | 84.65 | H alfa set | ||
7336/82 [335] | 2x2 | 6.03 | 7326 | 78 | 84.58 | H alfa set | ||
7384/84 [336] | 2x2 | 6.12 | 7367 | 87 | 82.25 | H alfa set | ||
7433/84 [337] | 2x2 | 6.09 | 7421 | 83 | 84.99 | H alfa set | ||
7482/84 [338] | 2x2 | 6.09 | 7469 | 98 | 83.30 | H alfa set | ||
7500/100 [339] | 2x2 | 4.02 | 7512 | 147 | 58.00 | |||
7531/84 [340] | 2x2 | 6.00 | 7532 | 90 | 80.40 | H alfa set | ||
7580/85 [341] | 2x2 | 6.07 | 7585 | 97 | 77.80 | H alfa set | ||
7630/85 [342] | 2x2 | 6.07 | 7636 | 85 | 81.53 | H alfa set | ||
7680/84 [343] | 2x2 | 5.95 | 7678 | 78 | 80.15 | H alfa set | ||
7700/110 [344] | 2x2 | 4.34 | 7708 | 108 | 64.00 | |||
7730/85 [345] | 2x2 | 6.04 | 7731 | 81 | 78.33 | H alfa set | ||
7781/86 [346] | 2x2 | 6.12 | 7774 | 77 | 74.33 | H alfa set | ||
7832/86 [347] | 2x2 | 6.04 | 7824 | 91 | 80.08 | H alfa set | ||
7860/2000 | 2x2 | 5.14 | 84 | |||||
7883/86 [348] | 2x2 | 6.12 | 7871 | 93 | 77.65 | H alfa set | ||
7935/88 [349] | 2x2 | 6.09 | 7926 | 98 | 75.46 | H alfa set | ||
8067/1485 [350] | 3x3 | 6.11 | 8067 | 1485 | 95.49 | I kc Tek set#3 | ||
8075/1500 [351] | 3x3 | 6.13 | 8075 | 1500 | 95.53 | I kc Tek set#1 | ||
8075/1500 [351] | 4x4 | 6.19 | 8075 | 1500 | 94.09 | I kc set#1 4mts | ||
8100/110 [352] | 2x2 | 4.03 | 8106 | 123 | 67.00 | |||
8100/1500 [353] | 3x3 | 5.08 | 8100 | 1500 | 93.00 | i Gunn-T | ||
8102/1505 [354] | 2x2 | 5.03 | 8102 | 1505 | 93.89 | Gunn-T set 2 | ||
8118/1415 [355] | 3x3 | 8118 | 1415 | 96.63 | I kc Tek set#2 | |||
8120/1500 [356] | 4x4 | 9.22 | 8065 | 1600 | 86.60 | Gunn i | ||
8123/1313 [357] | 2x2 | 7.99 | 8123 | 1313 | 84.30 | T2 Wash. set#3 | ||
8200/900 | 2x2 | 6.11 | 8186 | 943 | 90.00 | i Gunn-T set 1 | ||
8227/1865 | 2x2 | 4.62 | 8227 | 1865 | 71.65 | I-11 | ||
8200/1640 | 2x2 | 4.64 | 8200 | 1640 | 76.00 | I-10 | ||
8200/1640 | 2x2 | 4.53 | 8200 | 1640 | 76.00 | I-13 | bubble | |
8300/110 [358] | 2x2 | 3.76 | 8306 | 128 | 61.00 | |||
8300/2500 [359] | 4x4 | 5.43 | 8310 | 2560 | 98.73 | HST "I" | thin film coating | |
8542/18 [360] | 2x2 | 8540 | 19 | 60.20 | Rutgers F-P | |||
8549/25 [361] | 2x2 | 8560 | 28 | 77.17 | Rutgers F-P | |||
8585/100 [362] | 2"d | 8589 | 105 | 85.57 | Rutgers F-P | |||
8632/100 [363] | 2x2 | 8639 | 90 | 91.89 | Rutgers F-P | |||
9532/20 [364] | 2x2 | 7.10 | 9536 | 20 | 45.00 | |||
9900/ n [365] | 2x2 | |||||||
9900/ n [366] | 3x3 | 5.05 | 95.30 | z Gunn-T set 2 | from 8435 (45%) ---> | |||
4x4 | 5.07 | 95.50 | z Gunn-T | from 8490 (57%) ---> | ||||
z Gunn |
mkeaneATnoao.edu
WG335
WG345 [380]
WG360 [381]
GG385 [382]
GG420 [383]
GG455 [384]
GG495 [385]
OG515
OG570 [386]
OG590
RG610 [387]
RG665
RG695 [388]
Copper Sulfate (CuSO4) [391]
Corning 9780
Michael Keane (mkeaneATnoao.edu)
Jack Baldwin (jbaldwinATnoao.edu)
Links
[1] http://www.ctio.noao.edu/noao/content/mosaic-filters
[2] http://www.ctio.noao.edu/noao/content/ctio-3x3-inch-and-4x4-inch-filters
[3] http://www.noao.edu/kpno/mosaic/filters/index.html
[4] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/filter_names.txt
[5] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/vrsupermacho_0.jpg
[6] http://www.ctio.noao.edu/noao/content/u-leak
[7] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/ctiosdssu_leak.gif
[8] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/ctiosdssu.gif
[9] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/ctiosdssu.dat
[10] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/ctiosdssuleak.dat
[11] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/OCIW_1.TXT
[12] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/y1.png
[13] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/OCIW_2.TXT
[14] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/y2.png
[15] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/OCIW_3.TXT
[16] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/y3.png
[17] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/OCIW_7.TXT
[18] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/y7.png
[19] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/iband.txt
[20] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/iband.gif
[21] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/j_40.txt
[22] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/j_401.gif
[23] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/j_82a.txt
[24] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/j_82a1.gif
[25] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/J_183.txt
[26] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/J_183.gif
[27] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/geminiJ.dat
[28] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/geminiJ.png
[29] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/ispiJ.dat
[30] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/ispiJ.png
[31] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/ja.gif
[32] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/h_44.txt
[33] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/h_441.gif
[34] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/H_184.txt
[35] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/H_184.gif
[36] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/geminiH.dat
[37] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/geminiH.png
[38] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/ha.png
[39] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/k_50.txt
[40] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/k_501.gif
[41] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/K_185.txt
[42] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/K_185.gif
[43] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/ks_129.txt
[44] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/ks_1291.gif
[45] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/ka.png
[46] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/2248.txt
[47] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/2248.jpg
[48] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/219.txt
[49] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/219.jpg
[50] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/216w.txt
[51] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/216w.jpg
[52] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/216micron.dat
[53] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/216.jpg
[54] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/214w.txt
[55] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/214w.jpg
[56] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/2.14micron.dat
[57] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/2.14micron.gif
[58] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/212w.txt
[59] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/212w.jpg
[60] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/2.12.txt
[61] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/212.jpg
[62] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/212micron.dat
[63] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/212micron.gif
[64] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/208.txt
[65] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/208.jpg
[66] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/206.txt
[67] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/206.jpg
[68] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/203.txt
[69] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/203.jpg
[70] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/1.644.gif
[71] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/1.28.txt
[72] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/1.28.jpg
[73] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/1.257.txt
[74] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/1.257.jpg
[75] http://www.ctio.noao.edu/noao/content/ispi
[76] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/y4kcam_b.pdf
[77] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/y4kcam_B.txt
[78] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/y4kcam_v.pdf
[79] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/y4kcam_V.txt
[80] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/y4kcam_r.pdf
[81] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/y4kcam_Rc.txt
[82] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/y4kcam_i.pdf
[83] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/y4kcam_Ic.txt
[84] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/y4kcam_sdss_u.pdf
[85] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/sdss_u.txt
[86] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/y4kcam_sdss_g.pdf
[87] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/sdss_g.txt
[88] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/y4kcam_sdss_r.pdf
[89] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/sdss_r.txt
[90] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/y4kcam_sdss_i.pdf
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[92] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/y4kcam_sdss_z.pdf
[93] http://www.ctio.noao.edu/noao/sites/default/files/instruments/filters/sdss_z.txt
[94] http://www.ctio.noao.edu/noao/content/ctio-various-filters-transmission-curves
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