Band/ Wavelength |
Filter ID (Text Data) |
Filter ID (Graph) |
Available for ISPI * |
Comment |
Y | 191A | 191A | 30mm Barr | |
Y | 191B | 191B | 50mm Barr | |
Y | 191C | 191C | 65mm Barr | |
Y | 191D | 191D | 30mm Barr | |
I | 81 | 81 | 25mm inew | |
J | 40 | 40 | 25 mm Jcit | |
J | 82a | 82a | 25mm Jshort | |
J | 183 | 183 | 30mm Barr | |
J | 186 | 186 |
removed, 2004b |
60mm OCLI, Gemini, ISPI |
J | 192 | 192, scan | Yes | 65mm Barr |
H | 44 | 44 | 25mm OCLI | |
H | 184 | 184 | 30mm Barr | |
H | 187 | 187 |
removed, 2004b |
60mm OCLI, Gemini, ISPI |
H | 190 | 190 | Yes | 65mm Barr |
K | 50 | 50 | 25mm OCLI | |
K | 185 | 185 | 30mm Barr | |
K' | 188 | 188 |
removed, 2004b |
60mm OCLI, Gemini, ISPI |
Kshort | 129 | 129 |
25mm Barr /2MASS |
|
Kshort | 189 | 189 | Yes | 65mm Barr, ISPI |
2.248 H2 | 125 | 125 | 25mm Barr | |
2.248 H2 | 199 | 199 | Yes | 65mm Omega |
2.19 He II | 138 | 138 | 25mm Omega | |
2.19 HeII | 198 | 198 | Yes | 65mm Omega |
2.166w Brg | 132 | 132 |
25mm Barr, wedged |
|
2.16 | 165 | 165 | 25mm Omega | |
2.16 Brg | 197 | 197 | Yes | 65mm Omega |
2.144w cont | 131 | 131 |
25mm Barr, wedged |
|
2.14 cont | 164 | 164 | 30mm Omega | |
2.14 cont | 200 | 200 | Yes | 65mm Omega |
2.122w H2 | 130 | 130 |
25mm Barr, wedged |
|
2.12 H2 | 89 | 89 | 25mm Barr | |
2.12 H2 | 163 | 163 | 25mm Omega | |
2.12 H2 | 196 | 196 | Yes |
65mm Omega, bad ghosts |
2.08 C IV | 136 | 136 | 25mm Omega | |
2.08 C IV | 195 | 195 | Yes | 65mm Omega |
2.06 He I | 135 | 135 | 25mm Omega | |
2.06 He I | 194 | 194 | Yes | 65mm Omega |
2.03 cont | 134 | 134 | 25mm Omega | |
2.03 cont | 193 | 193 | Yes | 65mm Omega |
1.644 [Fe II] | 128 | 128 | 25mm Barr | |
1.28 Palpha | 110 | 110 | 25mm Barr | |
1.257 [FeII] | 111 | 111 | 25mm Barr |
* Check the ISPI pages 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]