JCMT Queue-Based Flexible Guidelines
Guidelines for implementing flexible queue observing
Weather Guidelines
In order to maximise the productivity of the JCMT,
the ITAC has approved the concept of
flexible scheduling whereby the choice of project observed is determined
primarily by the weather conditions and then by the TAG-assigned priority.
To facilitate this we identify
the range of weather conditions within which each programme
allocated time should be pursued. The weather categories adopted, in
liason with the Director JCMT, are as follows:
| Weather Grade |
Definition |
CSO Tau |
Prime Instrument(s) |
| 1 | very dry | τ < 0.05 | RxW(D), HARP (>360GHz) |
| 2 | dry | 0.05 < τ < 0.08 | HARP |
| 3 | medium | 0.08 < τ < 0.12 | HARP |
| 4 | wet | 0.12 < τ < 0.2 | HARP, RxA3 |
| 5 | very wet | 0.2 < τ | RxA3 |
Observing by the Dutch and Canadian communities occurs in blocks
of several nights in which programs are observed according
to the weather and the assigned TAG priorities.
The natural flexible nature of this process ensures optimal use
of the telescope for those communities. The observer
sent by those communities is usually involved in one
of the high-priority, good-weather programs.
The arrangements for allocating programs and assigning observers in the UK queue
are slightly different - and
are explained here -
although the general Rules for Operating Flexible Queue Observing
apply in all cases.
To PIs in all queues : Upload your MSBs as soon as possible
All successful applicants
will be notified of these facts via e-mail from the
JCMT Scheduler shortly after each ITAC meeting. Observing templates (MSBs)
are required to be submitted for all projects by the end
of the first month of each semester - whether applicants are expected to come to
the telescope or not. This is because it is useful for MSBs for every
PATT-approved programme to be held at the JACH to facilitate flexible
observing at any time. MSBs are created and uploaded using the
Observing Tool (OT).
Grade-5 proposals
The ITAC wish to encourage A-band heterodyne proposals that
can take advantage of Grade-5 conditions.
|