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Queue Mode Observations

In queue mode, observations defined by the investigators are carried out on their behalf by the Gemini scientific staff. Several factors combine to determine which observation is executed from the pool of possible observations but predominant are scientific ranking and the closeness of match to the current observing conditions. There are no maximum or minimum time limits for single observations, but long observations are likely to be split in order to be integrated into the nightly plan (see each instrument's overheads page for details).

Each queue observation must be defined in detail, including telescope and instrument configurations and sequences (e.g. telescope and guide star coordinates, grating and slit settings, dither, chop and nod patterns). The detailed definition of observations is undertaken in Phase II of the proposal process using the Observing Tool (OT).

Scheduling restrictions, or observing condition constraints, fall into four categories which must be specified by the investigator for each observation (or globally for groups of observations up to and including the entire program) and define the poorest conditions under which the observation can be executed. These constraints are image quality, sky background, sky transparency, and cloud cover. Some of these properties have wavelength dependence. Care should be taken in selecting appropriate conditions; the observing condition constraints page contains detailed information that may be useful, including atmospheric transmission and emission spectra. The scientific demands of the particular program, the characteristics of each constraint, and the likelihood of their combined occurrence should drive this choice. Certain instruments may have additional scheduling restrictions (see the announcements for each semester in the Observing with Gemini page).

The description of telescope coordinates, instrument configurations and scheduling constraints, which form part of Phase I and are necessary to demonstrate technical feasibility, has been separated from the detailed observation definition which takes place in Phase II. Technical support for investigators prior to the submission of completed Phase II information to Gemini Observatory is provided by the partner National Gemini Offices (NGOs). Upon submission of the completed Phase II program, the assigned Gemini Contact Scientist (CS) becomes the first point of contact for all subsequent queries.

Modification of approved queue programs must be made via the change request process.

Gemini Observatory welcomes a variety of visiting scientists, including PIs with programs in the current semester’s queue. During their visits, queue PIs can work with Contact Scientists in our base facilities in La Serena or Hilo, accompany queue observers on runs to the summit, and interact with the local science communities. Queue PIs interested in visiting Gemini Observatory should contact their National Gemini Offices. The Instructions for Visitors page provides logistical information.

The Gemini Science and Technology Advisory Committee has approved a remote eavesdropping observing mode for queue programs, starting in Semester 2013A on completion of a trial late in 2012B. Tests are to be done in 2012B with the intention to implement more fully in 2013A, and complete in all respects by 13B.

There are no maximum or minimum time limits for single observations, but long observations are likely to be split in order to be integrated into the nightly plan (see each instrument's overheads page for details).

Each queue observation must be defined in detail, including telescope and instrument configurations and sequences (e.g. telescope and guide star coordinates, grating and slit settings, dither, chop and nod patterns). The detailed definition of observations is undertaken in Phase II of the proposal process using the Observing Tool (OT).

Scheduling restrictions, or observing condition constraints, fall into four categories which must be specified by the investigator for each observation (or globally for groups of observations up to and including the entire program) and define the poorest conditions under which the observation can be executed. These constraints are image quality, sky background, sky transparency, and cloud cover. Some of these properties have wavelength dependence. Care should be taken in selecting appropriate conditions; the observing condition constraints page contains detailed information that may be useful, including atmospheric transmission and emission spectra. The scientific demands of the particular program, the characteristics of each constraint, and the likelihood of their combined occurrence should drive this choice. Certain instruments may have additional scheduling restrictions (see the announcements for each semester in the Observing with Gemini page).

The description of telescope coordinates, instrument configurations and scheduling constraints, which form part of Phase I and are necessary to demonstrate technical feasibility, has been separated from the detailed observation definition which takes place in Phase II. Technical support for investigators prior to the submission of completed Phase II information to Gemini Observatory is provided by the partner National Gemini Offices (NGOs). Upon submission of the completed Phase II program, the assigned Gemini Contact Scientist (CS) becomes the first point of contact for all subsequent queries.

Modification of approved queue programs must be made via the change request process.

Gemini Observatory welcomes a variety of visiting scientists, including PIs with programs in the current semester’s queue. During their visits, queue PIs can work with Contact Scientists in our base facilities in La Serena or Hilo, accompany queue observers on runs to the summit, and interact with the local science communities. Queue PIs interested in visiting Gemini Observatory should contact their National Gemini Offices. The Instructions for Visitors page provides logistical information.

The Gemini Science and Technology Advisory Committee has approved a remote eavesdropping observing mode for queue programs, starting in Semester 2013A on completion of a trial late in 2012B. Tests are to be done in 2012B with the intention to implement more fully in 2013A, and complete in all respects by 13B.

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