AOT 42 Call for Proposal. Deadline Monday June 1st, 2020

also featuring NOT time

AOT 42 (2020B) is now open for proposals.

Applications for observing time for the periods

October 1st, 2020 - March 31st, 2021

are solicited and should be submitted by
Monday, 1st June, 2020, 12:00 UT.

Despite the difficult times we are experiencing, we are confident that TNG can regularly operate in the next semester. After a one month break, TNG resumed observations in safe conditions ( .

The available time offered at TNG via INAF-TAC is 16 (sixteen) nights in this call. This offer can be increased if not all the nights assigned to other calls will be effectively allocated by the respective TACs. The foreseen schedule breakdown is reported at the bottom.

LARGE and LONG-TERM PROGRAMS cannot be requested answering the AOT42 call. In particular, a Long-Term program on the optical counterparts of gravitational wave events is already running at TNG. Therefore, proposals on this topic will not be accepted anymore.

We will be accepting (few) Directory Discretionary Time proposals during the whole semester (, which will be judged by the TNG staff in few days. These observations will be performed in Service Mode only.

TNG is a 3.58-m optical/infrared telescope located at Roque de Los Muchachos Observatory in the island of La Palma (Canary Islands). Its primary mirror is corrected by Active Optics and it is equipped with instruments for imaging and spectroscopy, spanning the optical and near infrared wavelengths range.
The offered instruments are: HARPS-N, NICS, DOLORES and GIANO-B (GIANO in Nasmyth B).
The observing mode GIARPS, simultaneously combining HARPS-N and GIANO-B, is also offered (see below).
For details, visit

REM is a 60-cm robotic telescope located at La Silla ESO site (Chile) which can observe simultaneously with a visible and an infrared camera. The observations will be carried out in unmanned, queuing mode. INAF-TAC will allocate 1000 hours of observations.
REM is equipped with ROS2 visible camera and REMIR infrared camera. The two are observing simultaneously thanks to a dichroic.
ROS2 will produce simultaneous images in the four Sloan-like passbands g, r, i, z. Charged time is therefore not the sum of ROS2 and REMIR, but the greater between the two.
For details, see

NOT is a 2.56-m telescope, also located at Roque de Los Muchachos Observatory, next to the TNG. Offered instruments are ALFOSC (UV-optical imaging, polarimetry and low-resolution spectroscopy), NOTCam (NIR imaging, polarimetry and low-resolution spectroscopy), FIES (High-resolution, high-stability optical spectroscopy), MOSCA (High-resolution, high-efficiency UV-optical imaging), STANCam (Standby CCD imager).
For details, see
The double image polarimeter DIPol-UF is now available as a visitor instrument at the NOT. It allows for high-speed and high-precision broad-band polarimetry simultaneously in 3 pass-bands (BVR), but can also be used as a high-speed 3-band photometer. DIPol-UF is not a common-user instrument, but is only supported during specific periods. See for more information:


Application forms and detailed instructions can be downloaded from the TNG web pages (

Following new ideas on the refereeing process, the PIs and CoIs could be used as external reviewers for the other proposals in this or next call. The selected CoIs (from 2 to 5) must be indicated in the new Box 16.

An incomplete computation of the overheads is a recurrent weakness in the TNG proposals. This and other important information for a more careful preparation are reported at

Objects included in the TNG Protected Target List ( cannot be requested.

All proposals will be judged strictly on their scientific merit.


Ennio Poretti

Telescopio Nazionale Galileo
Fundacion Galileo Galilei - INAF