LBTO is currently CLOSED for 2019A Proposals

Partners who participated in the September 1, 2018 call included: TSIP/NOAO, University of Arizona, University of Notre Dame, and University of Minnesota. The call for AIP and MPIA was issued on September 28, 2018 and for The Ohio State University and University of Virginia on October 1, 2018. ALL PARTNERS ARE NOW CLOSED.

LBTO accepted applications through NOAO as part of a TSIP agreement. A total of 39 nights are available through TSIP on LBT over the course of 5 semesters (17B-19B). Eight (8) nights are offered in 2019A. The call for TSIP proposals closed on Oct 1, 2018. A special instructions page for TSIP PIs is HERE.

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 2019A the following partners are participating in PIT submission of all or some proposals include: TSIP/NOAO, Arizona (AZ, NAU, ASU), The Ohio State University, University of Notre Dame, University of Virginia, and University of Minnesota. 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 2019A, 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 this installation page.

LBTO Partnership (LBTB, INAF, OSURC, AZ) 

Instruments Offered:
LBTO is currently offering the following instruments for 2019A science:

Visible Near-IR Mid-IR Other facilities
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      
PI/Strategic Instruments (EXCLUDING TSIP)
PEPSI: 383-907nm high-resolution spectrograph and polarimeter. CONTACT PI LMIRCam on LBTI: 1-5µm high resolution camera and coronagraph. Optimized from 3-5µm. CONTACT PI
NOMIC on LBTI: an 8-13 μm camera. CONTACT PI

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:
For the 2019A observing season the available telescope configurations offered are as follows:
  • Monocular: all facility instruments in seeing-limited mode
  • AO: LUCI1 and LUCI 2 diffraction-limited imaging
  • Enhanced Seeing Mode (ESM)*: LUCI1 &  LUCI2
  • Homogeneous Binocular (Facility instruments only; Fraternal and Twin Modes)
  • Heterogeneous Binocular with LBC: LBC + MODS/LUCI in SHARED RISK**
* For more information about ARGOS and ESM strategies, see this page. ESM is highly recommended for all seeing-limited LUCI observations with appropriate AO Reference Stars. Please be aware that we cannot perform ARGOS observations below 45 degrees in elevation. This is a hard limit imposed by the Federal Aviation Administration.

** In “shared-risk”, LBTO and its partners jointly acknowledge that the instrument, capability, or facility may experience suboptimal efficiency or technical downtime during nighttime operations and that, at the discretion of LBTO staff and for the benefit of the greater community, the investigation of the origin of the problem(s) or the pursuit of recovery options may occur.

PI Strategic Instruments:
It is critical that astronomers who would like to use the PI/Strategic instruments, LBTI or PEPSI, must contact the Principle Investigator of these instruments before submitting proposals to the TAC:

LBTI - Phil Hinz (
PEPSI - Klaus Strassmeier (

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

Special Instructions for 2019A:
  • We will continue commissioning of LUCI2 AO spectroscopy in 2018B with the hopes of releasing this mode sometime in 2019A.
  • Mask Deadline for Successful Proposals is January 11, 2019. Please contact for any questions.
Observing Modes Available:
For the 2019A observing season the observatory will operate as it has for the last several years, which is in "classical/service" and "PI Instrument" modes. In classical/service mode, partners will select PIs of successful proposals or partner service observers to visit the telescope during observatory-scheduled partner blocks. These designated observers will complete observations for themselves and potentially other PIs in their partnership. 

Recent Past CfP:

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).