Science Operations

Prepare for Your Run

LBTO C-19 Observing Form

Please complete the LBTO C-19 Observing Request Form in advance of your run.

LBTO C-19 Observing Request Form

This form will ensure that we have VPN accounts set up in advance of your run. ๐—ง๐—ต๐—ถ๐˜€ ๐—ณ๐—ผ๐—ฟ๐—บ ๐—ถ๐˜€ ๐—ฟ๐—ฒ๐—พ๐˜‚๐—ถ๐—ฟ๐—ฒ๐—ฑ ๐—ผ๐—ณ ๐—ฎ๐—ป๐˜† ๐—ฝ๐—ฎ๐—ฟ๐˜๐—ป๐—ฒ๐—ฟ ๐—ฎ๐˜€๐˜๐—ฟ๐—ผ๐—ป๐—ผ๐—บ๐—ฒ๐—ฟ ๐˜„๐—ถ๐˜€๐—ต๐—ถ๐—ป๐—ด ๐˜๐—ผ ๐—ฝ๐—ฎ๐—ฟ๐˜๐—ถ๐—ฐ๐—ถ๐—ฝ๐—ฎ๐˜๐—ฒ ๐—ถ๐—ป ๐˜๐—ต๐—ฒ๐—ถ๐—ฟ ๐—ฝ๐—ฎ๐—ฟ๐˜๐—ป๐—ฒ๐—ฟ’๐˜€ ๐—–-๐Ÿญ๐Ÿต ๐˜€๐—ฐ๐—ถ๐—ฒ๐—ป๐—ฐ๐—ฒ ๐—ฏ๐—น๐—ผ๐—ฐ๐—ธ. ๐—ช๐—ฒ ๐˜„๐—ถ๐—น๐—น ๐˜‚๐˜€๐—ฒ ๐˜†๐—ผ๐˜‚๐—ฟ ๐—ฎ๐—ป๐˜€๐˜„๐—ฒ๐—ฟ๐˜€ ๐˜๐—ผ ๐˜ƒ๐—ฒ๐—ฟ๐—ถ๐—ณ๐˜† ๐˜๐—ต๐—ฎ๐˜ ๐˜†๐—ผ๐˜‚ ๐—ต๐—ฎ๐˜ƒ๐—ฒ ๐—ฟ๐—ฒ๐—ฎ๐—ฑ ๐—ผ๐˜‚๐—ฟ ๐—ฐ๐—ผ๐—บ๐—ฝ๐˜‚๐˜๐—ถ๐—ป๐—ด ๐—ฝ๐—ผ๐—น๐—ถ๐—ฐ๐˜† ๐—ฎ๐—ป๐—ฑ ๐˜๐—ผ ๐—ด๐—ฟ๐—ฎ๐—ป๐˜ ๐—ฎ๐—ฐ๐—ฐ๐—ฒ๐˜€๐˜€ ๐˜๐—ผ ๐˜๐—ต๐—ฒ ๐—ฎ๐—ฝ๐—ฝ๐—ฟ๐—ผ๐—ฝ๐—ฟ๐—ถ๐—ฎ๐˜๐—ฒ ๐—ฐ๐—ผ๐—บ๐—ฝ๐˜‚๐˜๐—ถ๐—ป๐—ด ๐—ฟ๐—ฒ๐˜€๐—ผ๐˜‚๐—ฟ๐—ฐ๐—ฒ๐˜€.

If you choose to use LBT HQ Remote mode please fill out aย Reservation form for the Tucson Remote Roomย as soon as possible. A lead observer should be designated for each night. this information should be passed along to the science support ( as soon as it is available.


Read the instrument manuals and the instrument and telescope webpages (as you are right now). Any questions, email us at, we are here to help! ย For current instrument news check out the Recent News and read the webpages for the facility instruments: LBC, MODS, LUCI, PEPSI.

Script Generation

Scripts may be prepared using the new OT or the older tools. We highly encourage users to use the OT. Older tools such as modsTools, Scriptor, and the LBC GUI are no longer maintained and will be deprecated in the near future.

The OT is available for download here. Please be sure also to download the most recent libraries for the OT. These libraries contain useful templates and examples.

PRO TIP: If scripts are generated using the OT, it can be very useful to send the program xml along with the scripts to be executed. This allows the observers to easily see the program and make edits (such as acquire new guide star) should the need arise. Details for exporting your xml are available here.

It is also good to prepare backup programs and scripts that account for all conditions.

Mask Preparation/Check

Mask preparation is described in detail for MODS here and LUCI here. We also encourage users to review the LMS tutorial(and this is equally applicable to MMS)ย provided at the 2017 User’s Meeting.

Masks can have many iterations along the way to perfection. To ensure the desired mask matching the generated scripts are loaded, we recommend confirming mask requests:

Masks for upcoming LUCI 1 & 2 cabinet exchanges

Future MODS 1 & 2 masks, separated by science block

LUCI mask exchanges are performed under strict scheduled conditions, so its best to confirm these well in advance. As long as the MODS masks have been generated (MODS Inventory list available here) and are available on the mountain, the observatory can often have the mask loaded within a reasonable time frame.

Users should also make sure to not rename the LMS and MMS files to something other than what MMS or LMS produces. Both LMS and MMS softwares allow unique names to be created (i.e. luci2.42.M81Targ1.lms). The “luci2.42.” is auto generated, but the “M81Targ1” is a unique name provided by the user. THERE IS NO NEED TO RENAME LMS or MMS FILES. i.e. Do not change luci2.42.M81Targ1.lms to Gromits_Mask.lms.

LUCI and MODS are now capable of doing binocular MOS observations. We offer:

  1. “twinned” – same mask, same position angle, same pointing center for both instruments
  2. “fraternal” – same field, same position angle, same pointing center, but different masks in each instrument.

We do not currently support two different masks with different pointing centers and different position angles. Unless you request otherwise, we will fabricate TWO copies of each mask submitted so that LUCI and MODS MOS observations can be done in Binocular mode.

If you have any questions about this, please do not hesitate to contact us.