Space Telescope Science Institute   9.2 Mode = IMAGE Config = WFPC2  9.4 WFPC2 Aperture Coordinate System

9.3 Tabular Reference Data



Table 9.3: Valid WFPC2 Exposure Times (seconds)1  
0.112, 3
0.12 2, 3
0.14 2, 3
0.16 2, 3
0.18 2, 3
0.20 2, 3
0.233
0.26 3
0.30 3
0.35 3
0.40 3
0.50 3
0.60 3
0.70 3
0.80 3
1.00
1.20 3
1.40 3
1.60 3
1.80 3
2.00
2.30 3
2.60 3
3.00
3.50 3
4.00
5.00
6.00
7.00
8.00
10.00
12.00
14.00
16.00
18.00
20.00
23.00
26.00
30.00
35.00
40.00
50.00
60.00
70.00
80.00
100.00
120.00
140.00
160.00
180.00
200.00
230.00
260.00
300.00
350.00
400.00
500.00
600.00
700.00
800.00
900.00
1000.00
1100.00
1200.00
1300.00
1400.00
1500.00
1600.00
1700.00
1800.00
1900.00
2000.00
2100.00
2200.00
2300.00
2400.00
2500.00
2600.00
2700.00
2800.00
2900.00
3000.00
3100.00
3200.00
3300.00
3400.00
3500.00
3600.00
3700.00
3800.00
3900.00
4000.00
4100.00
4200.00
4300.00
4400.00
4500.00
4600.00
4700.00
4800.00
4900.00
5000.00
5100.00
5200.00
5300.00
5400.00
5500.00
5600.00
5800.00
6000.00
6200.00
6400.00
6600.00
6800.00
7000.00
7500.00
8000.00
8500.00
9000.00
10000.00
1Exposure times below the heavy line will automatically be split into two exposures unless CR-SPLIT=NO.
2These very short exposure times are affected by shutter movement; see the WFPC2 Instrument Handbook.
3These exposure times should not be used with CLOCKS=YES; see the WFPC2 Instrument Handbook.


Table 9.4: WFPC2 Supported Spectral Elements (Filters)
Name
Wheel
Description
Central
Wavelength (Å)
Effective
Width (Å)
F122M
1
H Ly - Alpha (Red Leak)
1420
438
F130LP
2
CaF2 Blocker (zero focus shift)
5116
4776
F160AW
1
Sodium filter A
1492
449
Note: The F160BW filter is superior to the F160AW filter. If you feel you need to use the F160AW filter, please contact your Contact Scientist or help@stsci.edu.
F160BW
1
Sodium filter B
1492
449
F160BN15
1
Sodium filter B rotated -15 degrees
1492
449
F165LP
2
Suprasil Blocker (zero focus shift)
5196
4541
F170W
8

1750
546
F185W
8

1953
335
F218W
8
Interstellar feature
2192
388
F255W
8

2586
393
F300W
9
"Wide U"
2943
736
F336W
3
"WFPC2 U", "Strömgren u"
3342
381
F343N
5
Ne V
3433
27
F375N
5
[O II]
3738
27
F380W
9

3964
673
F390N
5
CN
3889
45
F410M
3
"Strömgren v"
4090
147
F437N
5
[O III]
4370
25
F439W
4
"WFPC2 B"
4300
473
F450W
10
"Wide B"
4519
957
F467M
3
"Strömgren b"
4669
167
F469N
6
He II
4694
25
F487N
6
H Beta
4865
26
F502N
6
[O III]
5012
27
F547M
3
"Strömgren y"
5476
483
F555W
9
"WFPC2 V"
5398
1226
F569W
4
F555W is generally preferred
5614
966
F588N
6
He I & Na I
5894
49
F606W
10
"Wide V"
5935
1497
F622W
9

6163
917
F631N
7
[O I]
6306
31
F656N
7
H Alpha
6564
21
F658N
7
[N II]
6590
29
F673N
7
[S II]
6732
47
F675W
4
"WFPC2 R"
6696
866
F702W
10
"Wide R"
6868
1383
F785LP
2
F814W is generally preferred
8617
1332
F791W
4
F814W is generally preferred
7826
1205
F814W
10
"WFPC2 I"
7921
1489
F850LP
2

9072
986
F953N
1
[S III]
9545
53
F1042M
11

10184
365
Quadrant Filters
FQUVN
11
Redshifted [O II]
3765-3992
63 (avg.)
FQUVN33
11
Redshifted [O II] rotated -33 degrees
3765
73
FQCH4N
11
Methane Bands (Jewel Quad)
5433-8929
49 (avg.)
FQCH4N33
11
Methane quad filter rotated -33 deg
6193
44
FQCH4N15
11
Methane quad filter rotated -15 deg
6193
44
FQCH4P15
11
Methane quad filter rotated +15 deg
8929
64
POLQ
11
Polarizer (0, 45, 90, 135) - zero focus shift


POLQN33
11
Polarizer rotated -33 degrees


POLQN18
11
Polarizer rotated -18 degrees


POLQP15
11
Polarizer rotated +15 degrees


Linear Ramp Filters
LRF
12
Linear ramp filter set
3710-9762
1.3% CW


Table 9.5: Linked Spectral Element/Aperture Combinations for Wood's and Quadrant Filters
Spectral Element
Aperture
Central Wavelength (Å)
Effective Width (Å)
Comments
F160BN15
F160BN15
1600
900
on CCD WF3
FQUVN
WF2
3992
64
nominal rotation
FQUVN
WF3
3913
59
nominal rotation
FQUVN
WF4
3830
57
nominal rotation
FQUVN33
FQUVN33
3765
73
-33 degree rotation, on CCD WF2
FQCH4N
FQCH4W2
5433
38
nominal rotation, on CCD WF2
FQCH4N
FQCH4W3
8929
64
nominal rotation, on CCD WF3
FQCH4N
FQCH4W4
7274
51
nominal rotation, on CCD WF4
FQCH4N33
FQCH4N33
6193
44
-33 degree rotation, on CCD WF2
FQCH4N15
FQCH4N15
6193
44
-15 degree rotation, on CCD PC1
FQCH4P15
FQCH4P15
8929
64
+15 degree rotation, on CCD PC1
POLQ
PC1


pol. angle 135 degrees; POS TARG +8, +8 recommended to avoid cross-talk
POLQ
WF2


pol. angle 0 degrees
POLQ
WF3


pol. angle 45 degrees
POLQ
WF4


pol. angle 90 degrees
POLQN33
POLQN33


pol. angle 102 degrees, on CCD WF2
POLQP15
POLQP15W


pol. angle 15 degrees, on CCD WF2
POLQP15
POLQP15P


pol. angle 15 degrees, on CCD PC1; not recommended: clear FOV only 3 arcsec
POLQN18
POLQN18


pol. angle 117 degrees, on CCD WF2

 9.2 Mode = IMAGE Config = WFPC2  9.4 WFPC2 Aperture Coordinate System
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