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2027A Call for proposalsOpenDeadline - Days
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- Hours
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- Minutes
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- Seconds
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- Regular observations – TJO & TFRM
- 01 January – 30 June 2027
- Long-term observations – TJO only
- 01 January 2027 – 31 December 2028
- Fast response (DDT) – TJO only
- Any time
Choose your proposal route
CAT regular proposalsTwice a year
- Calls: Autumn and spring, twice per year.
- Observations: January–June after autumn calls; July–December after spring calls.
- Telescopes: Joan Oró Telescope (TJO), Wide-field Fast Telescope (TRAC) and Fabra-ROA Montsec Telescope (TFRM).
DDT fast-response proposalsOpen year-round
- Submission: Any time, TJO only.
- Purpose: Science cases requiring a fast response.
- Feedback: Within two working days after submission.
From proposal to observations
- 1
Submit your proposalDescribe your science and requested observing time. Phase 1 guide
- 2
Plan the observationsDefine targets, constraints, instruments and sequences. Phase 2 guide
- 3
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