The table below shows the filters installed in OSIRIS. The table is split up into two sections, one for the Spectrometer portion of OSIRIS (SPEC), and one for the Imager portion (IMAG). The Central Wavelength, Bandwidth, Cut-On/Cut-Off Wavelengths, and Transmission data listed in this table are based on the 50% transmission points. All data are for filters at operational temperature (77K).
Combined OSIRIS Filter Plots: | |
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Plots showing relationship of Broad Band to Narrow Band filters: (Only done for SPEC filters - IMAG filters very similar.) |
SPEC Z-band SPEC J-band SPEC H-band SPEC K-band |
All Broad Band filters on the same plot: (Only done for SPEC filters - IMAG filters very similar.) |
SPEC Broad Bands |
All filter plots in single PDF file with all above individual: | SPEC Filters IMAG Filters |
IR Atmospheric Absorption Plot
SPEC Filters |
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Filter | Wheel & Position |
Central Wavelength (nm) |
Bandwidth (nm) |
Cut-On Wavelength (nm) |
Cut-Off Wavelength (nm) |
Transmission Average/Peak (%) |
Datafile |
Zbb | SFW Pos #1 | 1089.5 | 218.8 | 980.1 | 1198.9 | 83.8 / 93.9 | txt |
Jbb | SFW Pos #2 | 1309.7 | 260.1 | 1179.7 | 1439.8 | 78.9 / 86.2 | txt |
Hbb | SFW Pos #3 | 1637.9 | 329.5 | 1473.1 | 1802.6 | 92.6 / 96.3 | txt |
Kbb | SFW Pos #4 | 2172.8 | 415.7 | 1964.9 | 2380.7 | 85.5 / 92.3 | txt |
Narrow Band | |||||||
Zn2 | SFW Pos #5 | 1044.5 | 51.3 | 1018.9 | 1070.1 | 69.8 / 76.3 | txt |
Zn3 | SFW Pos #6 | 1086.7 | 52.6 | 1060.4 | 1113.0 | 71.6 / 82.9 | txt |
Zn4 | SFW Pos #7 | 1130.5 | 54.6 | 1103.2 | 1157.8 | 77.6 / 84.8 | txt |
Zn5 | SFW Pos #8 | 1176.2 | 56.3 | 1148.0 | 1204.3 | 72.8 / 79.7 | txt |
Jn1 | SFW Pos #9 | 1202.8 | 58.4 | 1173.6 | 1232.0 | 77.8 / 82.9 | txt |
Jn2 | SFW Pos #10 | 1258.3 | 60.8 | 1227.9 | 1288.7 | 78.0 / 86.7 | txt |
Jn3 | SFW Pos #11 | 1306.9 | 64.5 | 1274.7 | 1339.2 | 84.2 / 91.3 | txt |
Jn4 | SFW Pos #12 | 1356.3 | 65.8 | 1323.4 | 1389.2 | 82.3 / 91.1 | txt |
Hn1 | SFW Pos #13 | 1503.3 | 74.7 | 1466.0 | 1540.7 | 80.9 / 84.9 | txt |
Hn2 | SFW Pos #14 | 1570.8 | 77.6 | 1532.0 | 1609.5 | 75.2 / 84.3 | txt |
Hn3 | SFW Pos #15 | 1634.8 | 81.4 | 1594.1 | 1675.5 | 79.5 / 84.3 | txt |
Hn4 | SFW Pos #16 | 1694.1 | 84.9 | 1651.6 | 1736.6 | 83.3 / 90.7 | txt |
Hn5 | SFW Pos #17 | 1764.4 | 86.1 | 1721.4 | 1807.5 | 74.8 / 86.5 | txt |
Kn1 | SFW Pos #18 | 2004.8 | 100.1 | 1954.8 | 2054.9 | 85.1 / 91.7 | txt |
Kn2 | SFW Pos #19 | 2088.4 | 104.5 | 2036.2 | 2140.7 | 83.4 / 94.0 | txt |
Kn3 | SFW Pos #20 | 2175.4 | 108.0 | 2121.3 | 2229.4 | 83.8 / 91.4 | txt |
Kn4 | SFW Pos #21 | 2263.8 | 112.6 | 2207.5 | 2320.1 | 75.0 / 84.7 | txt |
Kn5 | SFW Pos #22 | 2349.9 | 116.5 | 2291.7 | 2408.2 | 79.5 / 90.7 | txt |
IMAG Filters |
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Filter | Wheel & Position |
Central Wavelength (nm) |
Bandwidth (nm) |
Cut-On Wavelength (nm) |
Cut-Off Wavelength (nm) |
Transmission Average/Peak (%) |
Datafile |
Zbb | IF2 Pos #1 | 1091.5 | 220.3 | 981.4 | 1201.6 | 82.1 / 93.0 | txt |
Jbb | IF2 Pos #2 | 1309.4 | 259.8 | 1179.5 | 1439.4 | 79.2 / 86.6 | txt |
Hbb | IF2 Pos #3 | 1638.3 | 329.2 | 1473.7 | 1802.9 | 92.6 / 96.3 | txt |
Kbb | IF2 Pos #4 | 2171.7 | 415.6 | 1963.9 | 2379.5 | 86.9 / 93.9 | txt |
Narrow Band | |||||||
Zn3 | IF1 Pos #1 | 1086.8 | 52.5 | 1060.6 | 1113.1 | 71.5 / 82.9 | txt |
Jn1 | IF1 Pos #2 | 1202.9 | 58.5 | 1173.7 | 1232.2 | 77.7 / 82.5 | txt |
Jn2 | IF1 Pos #3 | 1258.1 | 60.8 | 1227.7 | 1288.5 | 78.2 / 86.5 | txt |
Jn3 | IF1 Pos #4 | 1306.0 | 64.3 | 1273.8 | 1338.1 | 84.6 / 92.1 | txt |
Hn1 | IF1 Pos #5 | 1503.7 | 74.7 | 1466.4 | 1541.1 | 80.9 / 85.2 | txt |
Hn2 | IF1 Pos #6 | 1570.0 | 77.5 | 1531.3 | 1608.8 | 76.6 / 85.5 | txt |
Hn3 | IF1 Pos #7 | 1635.1 | 81.4 | 1594.4 | 1675.8 | 79.5 / 84.3 | txt |
Hn4 | IF1 Pos #8 | 1695.1 | 84.9 | 1652.6 | 1737.5 | 82.7 / 91.6 | txt |
Hn5 | IF1 Pos #9 | 1764.2 | 86.1 | 1721.1 | 1807.2 | 75.0 / 87.0 | txt |
Kn1 | IF2 Pos #5 | 2004.4 | 100.2 | 1954.3 | 2054.5 | 84.7 / 91.1 | txt |
Kn2 | IF2 Pos #6 | 2090.5 | 104.7 | 2038.1 | 2142.9 | 83.2 / 93.7 | txt |
Kn3 | IF2 Pos #7 | 2175.6 | 108.1 | 2121.6 | 2229.7 | 84.1 / 91.6 | txt |
Kn4 | IF2 Pos #8 | 2264.8 | 112.4 | 2208.6 | 2321.0 | 75.1 / 84.8 | txt |
Kn5 | IF2 Pos #9 | 2349.8 | 116.4 | 2291.6 | 2408.0 | 79.4 / 90.8 | txt |