Filter Summary
The following tables show the three cameras' filters' properties. The
definitions of the columns below are those of the STSDAS.SYNPHOT.BANDPAR
task. These definitions are summarized here. For further details please see
the on-line help on BANDPAR. Here `INT' refers to an integral over
wavelength, and `THRU' is the throughput of the filter at that wavelength.
`LAM' is wavelength.
Central Wavelength = bandpar.pivwv
defined as PIVWV = SQRT(INT(THRU
* LAM) / INT (THRU / LAM))
Mean Wavelength = bandpar.avgwv
defined as AVGWV = INT(THRU *
LAM) / INT(THRU)
Peak Wavelength = bandpar.wpeak
defined as wavelength at peak
throughput (WPEAK)
FWHM = bandpar.fwhm
defined as FWHM = SQRT(8 *
LOG(2)) * BANDW
Max Transmission = maximum transmission OF THE FILTER ONLY
(no other optical components) as
measured pre-launch in the lab
Max Throughput = bandpar.tpeak
defined as peak bandpass
throughput
The Range column describes the total range in wavelength where the filter
throughput (by itself, no other optical components) is larger than 0.05%. For
low-pass filters, the range is open-ended; the table lists in this case the
range as the maximum range listed in the SYNPHOT throughput reference files.
The rightmost column, Fraction, is the fraction of light falling on the
central pixel, assuming the point source PSF is centered on that pixel as
estimated by Tiny Tim PSF simulations (3-gyro mode).
All data in these tables (except for the PSF-related `Fraction') are
generated from the STScI CDBS tables, which are updated as more accurate
information is obtained. The observer is strongly advised to regenerate these
tables from the most up-to-date data in CDBS if the exact values are critical
to planning observations. The SYNPHOT user's guide (Bushouse, 1998) is the
best guide on how to do this.
HRC Filters
|
|
Filter
|
Central
|
Mean
|
Peak
|
FWHM
|
Range
|
Trans
|
Thru
|
Fraction
|
|
F475W
|
4775.7
|
4794.
|
5000.2
|
986.23
|
1800
|
0.913701
|
0.24735
|
0.17
|
|
F502N
|
5022.9
|
5023.
|
5005.5
|
85.867
|
145
|
0.7135654
|
0.19196
|
0.169
|
|
F550M
|
5579.9
|
5582.4
|
5550.3
|
389.02
|
740
|
0.8770255
|
0.24687
|
0.153
|
|
F555W
|
5356.
|
5368.
|
5059.8
|
841.13
|
1720
|
0.885
|
0.24037
|
0.159
|
|
F606W
|
5888.
|
5926.1
|
6689.8
|
1565.5
|
2570
|
0.9517956
|
0.27447
|
0.143
|
|
F625W
|
6295.5
|
6309.2
|
6479.9
|
977.51
|
1720
|
0.915
|
0.26496
|
0.134
|
|
F658N
|
6583.8
|
6584.
|
6592.
|
136.27
|
180
|
0.9118735
|
0.26505
|
0.128
|
|
F775W
|
7665.1
|
7677.5
|
7320.1
|
1017.4
|
1910
|
0.947
|
0.23605
|
0.107
|
|
F850LP
|
9145.2
|
9161.6
|
8859.5
|
1269.1
|
>3080
|
0.976
|
0.13813
|
0.086
|
|
F892N
|
8916.1
|
8916.4
|
8915.4
|
237.98
|
320
|
0.9182586
|
0.13461
|
0.091
|
|
F220W
|
2255.4
|
2264.4
|
2219.9
|
441.03
|
1350
|
0.361
|
0.050401
|
0.175
|
|
F250W
|
2715.9
|
2727.4
|
2520.1
|
563.76
|
1980
|
0.48071
|
0.061124
|
0.166
|
|
F330W
|
3362.7
|
3367.2
|
3460.3
|
409.16
|
790
|
0.751
|
0.10714
|
0.156
|
|
F344N
|
3433.7
|
3433.8
|
3430.2
|
64.922
|
95
|
0.67994
|
0.10093
|
0.156
|
|
F435W
|
4311.
|
4322.
|
4760.1
|
728.95
|
8780
|
0.92799
|
0.22602
|
0.17
|
|
F660N
|
6599.1
|
6599.3
|
6595.4
|
175.72
|
100
|
0.7178267
|
0.20719
|
0.128
|
|
F814W
|
8115.3
|
8146.9
|
7459.5
|
1656.6
|
2870
|
0.991
|
0.23965
|
0.099
|
|
POL_UV
|
6231.7
|
6607.
|
7399.7
|
4943.9
|
>18000
|
1.0
|
0.088816
|
0.135
|
|
POL_V
|
6943.2
|
7184.
|
9206.6
|
4134.8
|
>16500
|
1.0
|
0.086172
|
0.121
|
|
PR200L
|
5650.2
|
6051.9
|
6460.4
|
4830.5
|
>9392
|
0.93
|
0.26908
|
0.151
|
|
CORON
|
5472.
|
5926.3
|
6460.4
|
4926.1
|
|
0.475
|
0.13743
|
0.156
|
|
G800L
|
7506.4
|
7594.9
|
7000.
|
2614.3
|
>6000
|
0.902
|
0.22724
|
0.110
|
SBC Filters
|
|
Filter
|
Central
|
Mean
|
Peak
|
FWHM
|
Range
|
Trans
|
Thru
|
Fraction
|
|
F115LP
|
1406.1
|
1415.
|
1260.2
|
354.53
|
>8850
|
0.92705
|
0.057976
|
0.101
|
|
F122M
|
1273.7
|
1277.5
|
1216.
|
213.97
|
1170
|
0.143
|
0.0095276
|
0.078
|
|
F125LP
|
1437.5
|
1445.2
|
1320.
|
334.09
|
>8780
|
0.91
|
0.0529
|
0.108
|
|
F140LP
|
1527.
|
1532.6
|
1390.1
|
294.08
|
>8650
|
0.89
|
0.04167
|
0.125
|
|
F150LP
|
1610.7
|
1614.7
|
1490.
|
258.52
|
>8600
|
0.86812
|
0.029992
|
0.141
|
|
F165LP
|
1757.9
|
1760.1
|
1700.1
|
203.2
|
>8500
|
0.85
|
0.0090218
|
0.162
|
|
PR110L
|
1429.4
|
1438.1
|
1320.1
|
355.49
|
>8800
|
0.89444
|
0.045411
|
0.106
|
|
PR130L
|
1438.7
|
1446.6
|
1299.9
|
336.48
|
>8780
|
0.89611
|
0.053365
|
0.108
|
WFC Filters
|
|
Filter
|
Central
|
Mean
|
Peak
|
FWHM
|
Range
|
Trans
|
Thru
|
Fraction
|
|
F475W
|
4744.4
|
4763.
|
4999.6
|
989.27
|
1800
|
0.913701
|
0.3736
|
0.213
|
|
F502N
|
5023.
|
5023.1
|
5005.5
|
68.042
|
145
|
0.7135654
|
0.28985
|
0.210
|
|
F550M
|
5581.2
|
5583.5
|
5550.4
|
384.47
|
740
|
0.8770255
|
0.38211
|
0.216
|
|
F555W
|
5359.6
|
5371.8
|
5499.8
|
847.79
|
1720
|
0.885
|
0.37093
|
0.214
|
|
F606W
|
5917.7
|
5956.3
|
6689.8
|
1583.2
|
2570
|
0.9517956
|
0.46516
|
0.219
|
|
F625W
|
6310.5
|
6324.1
|
6479.9
|
978.32
|
1720
|
0.915
|
0.44337
|
0.22
|
|
F658N
|
6584.
|
6584.4
|
6591.6
|
87.487
|
180
|
0.9118735
|
0.44498
|
0.22
|
|
F775W
|
7693.
|
7705.4
|
7380.3
|
1023.4
|
1910
|
0.947
|
0.42868
|
0.206
|
|
F850LP
|
9054.8
|
9071.6
|
8610.3
|
1270.3
|
>3080
|
0.976
|
0.24829
|
0.147
|
|
F892N
|
8914.9
|
8915.1
|
8914.9
|
171.78
|
320
|
0.9182586
|
0.21473
|
0.154
|
|
F435W
|
4317.4
|
4327.3
|
4569.9
|
691.08
|
8780
|
0.92799
|
0.3807
|
0.217
|
|
F660N
|
6599.4
|
6599.5
|
6595.2
|
83.666
|
100
|
0.7178267
|
0.34844
|
0.0.22
|
|
F814W
|
8059.8
|
8087.4
|
7460.2
|
1541.6
|
2870
|
0.991
|
0.44092
|
0.197
|
|
POL_UV
|
6634.5
|
6874.9
|
7640.4
|
4053.7
|
>1800
|
1.0
|
0.16482
|
0.22
|
|
POL_V
|
6910
|
7134.4
|
7209.6
|
4017.
|
>16500
|
1.0
|
0.1386
|
0.22
|
|
G800L
|
7480.7
|
7559.1
|
7199.8
|
2473.
|
>6000
|
0.902
|
0.40081
|
0.210
|
|
