MODS Mask Exchanges for 2024A

Notes on positions 1-12 ("permanent") and 13-24 ("custom")

There are restrictions on certain positions in the slitmask cassettes of both MODS, and the configuration of "permanent" slits in MODS2 has changed, so when creating new slitmask tables, start from the templates, slitmask_restricted_M1template.tab and slitmask_restricted_M2template.tab on the mods1 and mods2 computers, respectively (modsN:~/Config/MODSN/00Masks):
  • In the MODS1 cassette, position 19 was noted to be "sticky" and is marked as "Do Not Use" (Feb 2023, ESolheid).
  • In the MODS1 cassette, position 14 was also noted to have a slightly sticky detent roller, so it should be left unoccupied (noted by Rick Pogge, Aug 2023)
  • In the MODS2 cassette, we are avoiding position 5 and the 0.6" longslit has been moved to position 1 (ITs 8468 and 8597).
  • Status of MODS1 and MODS2 slitmask cassettes and upgrades is summarized in IT 8834.
  • In the MODS1 cassette, the bent loading chute was making it difficult to insert masks in positions 12 & 24 (IT 8724), so the 2.4" longslit had been moved from 12->13 and position 24 was avoided. But Elliott reported in an email of Jan 14, 2023 that the chute appeared to have straightened out and Chris and Mark D noted on Aug 27, 2023 that there were no problems loading a mask into position 12. The 2.4" longslit was moved back to position 12.

2024A

INAF (Mar 19-26)

Cassette MODS1 MODS2
Pos maskID Description Partner maskID Description Partner
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 No Mask  
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 LS5x60x2.4 2.4 arcsec Segmented Long Slit   LS5x60x2.4 2.4 arcsec Segmented Long Slit  
13 ID590447 mods.5.SexIIF1 INAF ID590447 mods.5.SexIIF1 INAF
14 Do Not Use Do Not Use   Empty Position Empty  
15 ID541831 mods.7.SexIIF2 INAF ID541831 mods.7.SexIIF2 INAF
16 Empty Position Empty   Empty Position Empty  
17 ID552749 mods.1048.1030z28 INAF ID552749 mods.1048.1030z28 INAF
18 ID520051 mods.1049.1030z29 INAF ID520051 mods.1049.1030z29 INAF
19 Do Not Use Do Not Use   Empty Position Empty  
20 ID542559 mods.20.SexIIF4 INAF ID 542559 mods.20.SexIIF4 INAF
21 Empty Position Empty   Empty Position Empty  
22 ID575538 mods.21.SexIIF3 INAF ID575538 mods.21.SexIIF3 INAF
23 ID503645 mods.1052.1030z28 INAF ID503645 mods.1052.1030z28 INAF
24 Empty Position Empty   Empty Position Empty  

Previous Mask Exchanges (2023B)

INAF/LBTO_ENG (Jan 2, 2024)

Cassette MODS1 MODS2
Pos maskID Description Partner maskID Description Partner
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 No Mask  
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 LS5x60x2.4 2.4 arcsec Segmented Long Slit   LS5x60x2.4 2.4 arcsec Segmented Long Slit  
13 Empty Position Empty LBTO Empty Position Empty LBTO
14 Do Not Use Do Not Use   Empty Position Empty  
15 Empty Position Empty LBTO Empty Position Empty LBTO
16 Empty Position Empty   Empty Position Empty  
17 ID 552749 mods.1048.1030z28 INAF ID 552749 mods.1048.1030z28 INAF
18 ID 520051 mods.1049.1030z28 INAF ID 520051 mods.1049.1030z28 INAF
19 Do Not Use Do Not Use   Empty Position Empty  
20 ID 503205 mods.39.UDS1 INAF ID 503205 mods.39.UDS1 INAF
21 ID 532732 mods.4.g04d25ep LBTO ID 532732 mods.4.g04d25ep LBTO
22 Empty Position Empty   Empty Position Empty  
23 ID 503645 mods.1052.1030z28 INAF ID 503645 mods.1052.1030z28 INAF
24 Do Not Use Do Not Use   Empty Position Empty  

LBTO ENG /INAF (Sept 19-20)

Cassette MODS1 MODS2
Pos maskID Description Partner maskID Description Partner
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 No Mask  
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 LS5x60x2.4 2.4 arcsec Segmented Long Slit   LS5x60x2.4 2.4 arcsec Segmented Long Slit  
13 Empty Position Empty   Empty Position Empty  
14 Do Not Use Do Not Use   Empty Position Empty  
15 Empty Position Empty   Empty Position Empty  
16 Empty Position Empty   Empty Position Empty  
16 Empty Position Empty   Empty Position Empty  
17 Empty Position Empty   Empty Position Empty  
18 Empty Position Empty   Empty Position Empty  
19 Do Not Use Do Not Use   Empty Position Empty  
20 ID 503205 mods.39.UDS1 INAF ID 503205 mods.39.UDS1 INAF
21 ID 532732 mods.4.g04d25ep LBTO ID 532732 mods.4.g04d25ep LBTO
22 ID 531956 mods.3.g2025ep2 LBTO ID 531956 mods.3.g2025ep2 LBTO
23 ID 531713 mods.2.g00d25ep LBTO ID 531713 mods.2.g00d25ep LBTO
24 Do Not Use Do Not Use   Empty Position Empty  

LBTO ENG (Sept 1-9)

Cassette MODS1 MODS2
Pos maskID Description Partner maskID Description Partner
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 No Mask  
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 LS5x60x2.4 2.4 arcsec Segmented Long Slit   LS5x60x2.4 2.4 arcsec Segmented Long Slit  
13 Empty Position Empty   Empty Position Empty  
14 Do Not Use Do Not Use   Empty Position Empty  
15 Empty Position Empty   Empty Position Empty  
Topic revision: r242 - 14 Mar 2024, OlgaKuhn
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