Short requests are intended for short exploratory observations, such as checking calibrators or the feasibility of an observational setup, in preparation for a VLBI observation or proposal. Short requests are not intended as short scientific observations and will have no proprietary time; after correlation and pipeline calibration they become public through the EVN Archive.
Short requests must use standard observing and recording modes. They will be scheduled on a best effort basis. The observing time (≤ 4 hours) should be justified in the request; shorter projects may be easier to schedule.
The format of short observation proposals should include:
- A brief motivation, up to 250 words.
- The coordinates of the target(s) and calibrator(s).
- The calibrator coordinates.
- The observing time justification.
- The frequency band.
- The GST range.
- Essential stations for the observation.
- any other information necessary for central scheduling by JIVE staff, e.g. preferred phase-referencing cycle (in case the short observation runs during an e-EVN session).
The proposal must be sent via email to the EVN Programme Committee Chair, with the EVN Scheduler and the Head of Science Operations in JIVE in copy.
Disk-recording observations
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Requested observing time is ≤ 4 hours.
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Short requests can be submitted up to six weeks before the beginning of a session.
e-VLBI observations
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Requested observing time is ≤ 4 hours
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Short requests can be submitted up to three weeks prior to any e-VLBI run.