Science Operations

Proposal Submission


Partners participating in the 2023A call include: University of Virginia, The Ohio State University, University of Minnesota, MPIA, and Arizona. Please consult your home institutions for 2023A proposal information and deadlines.

Different partners have different dates and deadlines during their proposal seasons. Please check your partner webpages or ask your Partner Coordinator for specific CfP information and closing dates. Given the differing deadlines, joint proposals to several partners in a single submission are NOT currently accepted. If you are interested in a joint proposal that spans multiple partners, please submit a proposal to each partner during their call. You should note in the body of your proposal the partners to which you are applying and the time requested.

Phase I Tool:

LBTO has developed a Phase I Tool (PIT) for proposal submissions. For 2023A the following partners are currently participating in PIT submission of all or some proposals. Those using the the General PIT include: Arizona (AZ, NAU, ASU), The Ohio State University, University of Virginia, Notre Dame, MPIA, AIP, and University of Minnesota. INAF is using its own version, the INAF PIT. See the download pages for more details. Other LBTO users are welcome to examine the new tool, but should NOT use it to submit their proposals.
This tool allows PIs to easily enter basic information about their program and create a LBTO cover sheet and instrument summary to include with their proposals. For 2023A, partners should upload their entire proposal, including partner-specific cover page, as a PDF attachment. An example of a completed proposal is here. Partner PIs may choose whether or not to describe their program in the Observation and Target Tabs or to submit in a minimalist way with just cover sheet information and their PDF attachment.

Links to the General PIT (used by non-INAF PIs) for Mac, Windows, and Linux are available on the installation page. Links to the INAF-PIT are available on a different installation page during “B” semesters.

LBTO Partnership (LBTB, INAF, OSURC, AZ)

Instruments Offered:

LBTO is currently offering the following instruments for 2023A science:


Visible Near-IR Mid-IR
Facility Instruments
MODS1: (SX) 320-1100nm multi-object, long-slit spectrograph and imager LUCI1: (SX) 0.85-2.4µm multi-object, long-slit spectrograph and imager  
MODS2: (DX) 320-1100nm multi-object, long-slit spectrograph and imager
LUCI2: (DX) 1.00-2.4µm multi-object, long-slit spectrograph and imager  
LBCB: (SX) 350-650nm wide-field imager    
LBCR: (DX) 550-1000nm wide-field imager    
PEPSI: 383-907nm high-resolution spectrograph and polarimeter.     
Strategic Instruments
  LMIRCam on LBTI: 1-5µm high resolution camera and coronagraph. Optimized from 3-5µm.  NOMIC on LBTI: an 8-13 μm camera.

Available Tools:

While the observatory does provide an online archive for data access and download, no in-house pipeline or data reduction tools exist. For more information on the availability of community-built tools, please contact

Telescope/Instrument Configurations (General):

For the 2023A observing season the available telescope configurations offered are as follows:

Seeing Limited:

  • Monocular: Facility instruments in seeing-limited mode including LBC, MODS, LUCI, and PEPSI, all of which are now available flexibly scheduled in partner science blocks.
  • Homogeneous Binocular: all facility instruments in seeing-limited mode; twin or fraternal only
  • Heterogeneous Binocular:
    •    LBC + MODS in SHARED RISK**
    •    LBC + LUCI in SHARED RISK**
    •    LUCI + MODS in SHARED RISK**
  • Heterogeneous Binocular with PEPSI:
    •    PEPSI + MODS in SHARED RISK**
    •    PEPSI + LUCI in SHARED RISK**

Enhanced Seeing Mode (ESM):

  • LUCI1: Offered
  • LUCI2: Offered in SHARED RISK**

Diffraction Limited: (ADI included in SHARED RISK**)

  • LUCI1: Imaging only
  • LUCI2: Imaging only in SHARED RISK**



* For more information about ESM strategies, see this page. ESM is highly recommended for all seeing-limited LUCI observations with appropriate AO Reference Stars.

** In “shared-risk”, LBTO and its partners jointly acknowledge that the instrument, capability, or facility may require expert operation or staff intervention before or during nighttime operations and thus be less efficient. Also, at the discretion of LBTO staff, extended investigation of problems and/or the pursuit of recovery options may occur at night for the benefit of the greater community.

Telescope/Instrument Configurations (INAF):

INAF PIs should consult the LBT Italian Call for Proposals.

Strategic Instruments:

It is critical that astronomers who would like to use the LBTI must contact the Principal Investigator of this instrument before submitting proposals to the TAC:


Observations will be carried out with assistance from the instrument team during scheduled PI instrument blocks.

PI Instruments (SHARK-NIR & SHARK-VIS):

For investigators interested in using the PI instruments SHARK-NIR and SHARK-VIS please consult the PI’s, Jacopo Farinato ( and Fernando Pedichini ( respectively for current status and availability.

Special Instructions for 2023A:

  • Mask Deadline for Successful Proposals is January 11, 2023. Please contact for any questions.

Observing Modes Available:

In light of the extended COVID-19 crisis, the observatory encourages observers to continue to use the offered “C-19 mode”, a service mode where lead observers from the partnership participate in observing runs with LBTO staff, who execute observations. Remote Observing opportunities are under development and when/if travel and quarantine restrictions are lifted, normal modes of observing, with partners physically present at either our headquarters or the LBTO summit could again be offered.

The Arizona partner now operates in Mini-Q mode. Like partner service mode, the observing time is still scheduled in discrete blocks, however LBTO’s expert staff now execute observations on behalf of AZ PIs, with attention to priority and weather conditions.

Recent Past CfP:

PIT 2022B release: closed
PIT 2022A release: closed
PIT 2021B release: closed
PIT 2021A release: closed
PIT 2020B release: closed
PIT 2020A release: closed
PIT 2019B release: closed
PIT 2019A release: closed
PIT 2018B release: closed
PIT 2018A release: closed
PIT 2017B release: closed
PIT 2017A release: closed
PIT 2016B release: closed
PIT 2016A release: closed

The LBTO would like to thank Gemini Observatory for extensive use and adaptation of the materials and webpages published by Gemini staff at The Gemini Observatory is operated by the Association of Universities for Research in Astronomy, Inc., under a cooperative agreement with the NSF on behalf of the Gemini partnership: the National Science Foundation (United States), the National Research Council (Canada), CONICYT (Chile), the Australian Research Council (Australia), Ministério da Ciência, Tecnologia e Inovação (Brazil), and Ministerio de Ciencia, Tecnología e Innovación Productiva (Argentina).