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Applying for Telescope TimeTime on the 4.2-m William Herschel Telescope (WHT) and the 2.5-m Isaac Newton Telescope (INT) is awarded primarily by the Dutch, Spanish and UK time-allocation committees (TACs), who meet once per semester. The A-semesters run from 1st February to 31st July, and the B-semesters from 1st August to 31st January (see the latest ING call for proposals for any changes to these dates). PIs requesting an open-time allocation should submit their proposals following the instructions under 'submission information' and by the 'submission deadlines' in the table below. Observations of targets of opportunity can be accepted, read more at WEAVE non-standard scheduling requirements. |
| Programme | PIs from1 | Telescopes | Observing mode | Submission information | Call for proposals 2 | Submission deadlines 2 |
|---|---|---|---|---|---|---|
| Dutch time | The Netherlands | WHT | Queue4 | NL Programme Committee (NL PC) | Around the second half of February (semesters B) and August (semester A). | Around the second half of March (semester B) and September (semester A). |
| Spanish time | Spain | WHT | Queue4 | Comité para la Asignación de Tiempo (ES CAT) | Around the beginning of March (semester B) and September (semester A). | Around the beginning of April (semester B) and October (semester A). |
| UK time | UK | WHT | Queue4 | ING Panel for the Allocation of Telescope Time (ING PATT) | Around mid February (semester B) and mid August (semester A). | Around mid March (semester B) and mid September (semester A). |
| ING Director's Discretionary Time (DDT) | Anywhere | WHT | Queue4 | ING Director's Discretionary Time | DDT is permanently open to submissions. | Proposals can be submitted at any time. |
| Dutch time | The Netherlands | INT | Robotic queue5 | NL Programme Committee (NL PC) | Around the second half of February (semesters B) and August (semester A). | Around the second half of March (semester B) and September (semester A). |
| Spanish time | Spain | INT | Robotic queue5 | Comité para la Asignación de Tiempo (ES CAT) | Around the beginning of March (semester B) and September (semester A). | Around the beginning of April (semester B) and October (semester A). |
| UK time | UK | INT | Robotic queue5 | ING Panel for the Allocation of Telescope Time (ING PATT) | Around mid February (semester B) and mid August (semester A). | Around mid March (semester B) and mid September (semester A). |
| International Time Programme (ITP) | See note 3 | Multiple telescopes in ORM and OT, incl. WHT |
Queue4 | International Scientific Committee (CCI)
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Around end of January (semesters B and A). | Around end of February/beginning of March (semesters B and A). |
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[1]
PIs employed or studying in, or affiliated with, a Dutch, Spanish or UK institution at the time of submission should submit their proposal/s to the Dutch (NL PC), Spanish (ES CAT) or UK (ING PATT) TAC respectively. A similar rule applies to PIs who are working at foreign institutions based in any of these three countries - they should submit their proposal/s to the TAC of the country in which they are based.
The NL PC cannot accept proposals submitted by PIs employed or studying in a country other than the Netherlands. The ING PATT and ES CAT can accept proposals submitted by PIs employed or studying in a country other than UK and Spain as long as the majority of the collaborators on the proposal are employed or studying in the UK or Spain respectively. The NL PC, ES CAT and ING PATT can accept proposals from PIs employed or studying at the Isaac Newton Group of Telescopes at the time of submission.
[2] See the latest ING call for details. [3] Up to 5% of ING science telescope time is available for large-scale international projects through the International Time Programme (ITP). This time is allocated on an annual basis by the International Scientific Committee (CCI) of the Canarian Observatories. Proposals should be international in their range of participants and must have as principal or co-investigators astronomers from at least three of the seven European countries that are signatories to the Agreements for Cooperation in Astrophysics (Belgium, Finland, France, Germany, Italy, Spain & the UK). The proposal deadlines are usually in February, and the time is usually allocated over the following B and A semesters. [4] In queue mode the open-time observations are carried out by an ING astronomer on the WHT. Programmes are selected from a queue of previously approved programmes on the basis of various criteria, such as the scientific rank of the programme, visibility of the targets, observing conditions (seeing, sky transparency, sky brightness), airmass limit, etc. [5] In robotic queue mode the open-time observations are carried out automatically by a software scheduler on the INT. Programmes are selected from a queue of previously approved programmes on the basis of various criteria, such as the scientific rank of the programme, visibility of the targets, observing conditions (seeing, sky transparency, sky brightness), airmass limit, etc. and scheduled together with THE survey observations following its observing constraints. |
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