MODS Slit Masks
The table below lists the slit masks loaded into the MODS1 and MODS2 slit mask cassettes. The slits may be selected by the maskID code listed (selection by cassette position number is deprecated).
Facility masks are in the reserved positions 1 thru 12. Observer-designed custom masks are loaded in positions 13 thru 24.
Cassette |
MODS1 |
MODS2 |
Pos |
maskID |
Description |
maskID |
Description |
|
1 |
DarkMask |
Blank Mask for a Dark Block |
LS5x60x0.6 |
0.6 arcsec Segmented Long Slit |
|
2 |
SieveMask |
Pinhole Imaging Sieve Nr3 |
SieveMask |
Pinhole Imaging Sieve Nr3 |
|
3 |
Imaging |
Empty Frame for Imaging Stop |
Imaging |
Empty Frame for Imaging Stop |
|
4 |
LS5x60x0.3 |
0.3 arcsec Segmented Long Slit |
LS5x60x0.3 |
0.3 arcsec Segmented Long Slit |
|
5 |
LS5x60x0.6 |
0.6 arcsec Segmented Long Slit |
Not |
Usable |
|
6 |
LS5x60x0.8 |
0.8 arcsec Segmented Long Slit |
LS5x60x0.8 |
0.8 arcsec Segmented Long Slit |
|
7 |
LS5x60x1.0 |
1.0 arcsec Segmented Long Slit |
LS5x60x1.0 |
1.0 arcsec Segmented Long Slit |
|
8 |
LS5x60x1.2 |
1.2 arcsec Segmented Long Slit |
LS5x60x1.2 |
1.2 arcsec Segmented Long Slit |
|
9 |
LS60x5 |
5 arcsec Spectrophotometry Wide Slit |
LS60x5 |
5 arcsec Spectrophotometry Wide Slit |
|
10 |
PinholeSlit |
Pinhole Slit |
PinholeSlit |
Pinhole Slit |
|
11 |
Pointing Mask |
MODS Pointing Mask |
Pointing Mask |
MODS Pointing Mask |
|
12 |
Not |
Usable |
No Mask |
2.4 arcsec Segmented Long Slit |
|
13 |
2.4 arcsec Segmented Long Slit |
|
|
No Mask |
|
14 |
|
No Mask |
|
No Mask |
|
15 |
|
No Mask |
|
No Mask |
|
16 |
|
No Mask |
|
No Mask |
|
17 |
|
No Mask |
|
No Mask |
|
18 |
ID 503205 |
mods.39.UDS1.mms |
ID 503205 |
mods.39.UDS1.mms |
|
19 |
ID 593032 |
mods.1.UDS2.mms |
ID 593032 |
mods.1.UDS2.mms |
|
20 |
ID 582025 |
mods.12.j0309.mms |
ID 582025 |
mods.12.j0309.mms |
|
21 |
ID 583616 |
mods.13.j0309.mms |
ID 583616 |
mods.13.j0309.mms |
|
22 |
ID 585229 |
mods.14.j0309.mms |
ID 585229 |
mods.14.j0309.mms |
|
23 |
ID 560300 |
mods.9.j0309.mms |
ID 560300 |
mods.9.j0309.mms |
|
24 |
|
No Mask |
|
No Mask |
|
Mask exchange done by Joe and Elliott 1-14-2023. Udated list by Elliott