UIST – Filter Wheels (2004 – 2006)

UIST – Filter Wheels (2004 – 2006)

UIST has two 24-slot filter wheels which contain filters for both imaging and for blocking the spectroscopy grisms. The MKO consortium filter set is installed where possible (see the discussion of new JHK standards for example). Click on the filter name to see an image of the profile (where available). Text files are also available giving transmission profiles for some of the filters, contact Sandy Leggett. The table below lists the filter wheels’ population. 

1 March 2004 – 11 July 2006

Wheel 1

PosnFilter50% Cut on50% Cut off
1Open
2Blank
3Black blank
4blank
5Hartmann mask
6Z[MK]1.0081.058
7Kshort2.0282.290
8Klong2.0192.434
91.57(cont) [MK]1.5611.583
10FeII[MK]1.6301.656
112.248(S1)2.2342.269
122.248[MK]2.2352.270
132.122(S1)2.1062.124
142.122 MK2.1032.134
15BrG MK2.1502.182
16CH4_s1.5501.657
17CH4_l1.6171.730
182.27cont[98]2.2572.291
192.42CO2.4132.436
20L'[MK]3.4284.108
21M'[MK]4.5724.800
22blank
23PK50 2mm2.7
24Blank

Wheel 2

PosnFilter50% Cut on50% Cut off
1Open
29.95mm circ aper
3blank1.491.78
4B2 blocker1.432.60
5J-spectral0.961.71
6HK-spectral1.583.38
7H-spectral1.272.50
8KL-spectral2.113.13
9L-spectral2.564.61
10J[MK]1.171.33
11H[MK]1.491.78
12K[MK]2.032.37
133.4nbL3.3793.451
143.5mbL3.3833.594
153.6nbLp3.5603.625
163.99(cont)3.9644.016
17BrA4.0254.080
18PAH MK3.2643.318
193.28″Dust”3.2503.305
203.05ice MK2.9703.125
21M-spectral3.56.0
22Blank
23PK50 2mm2.7
24blank

Previous filter wheel arrangements are available here.