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Observing Sessions

The EVN regularly observes during pre-scheduled observing sessions every year. EVN observations may be conducted using disk recording (standard EVN) or in real-time (e-VLBI).

 

Scheduled standard EVN sessions

Standard EVN observations (disk recording) are spread across three different sessions during the year. Each session covers approximately 21 days and the observing wavelengths are planned according to proposal pressure. The block schedule for EVN observations is public a few weeks before the observations (latest block schedule).

Year Session Dates (Day/Month)
2024 Session 3 17 Oct - 7 Nov
2024 Session 2 23 May - 13 Jun
2024 Session 1 22 Feb - 14 Mar
2023 Session 2 25 May - 15 Jun
2023 Session 3 19 Oct - 9 Nov

 

Scheduled e-VLBI sessions

Ten e-VLBI sessions are scheduled every year, with sessions lasting 24 hours. Each session observes at only one frequency, which is decided based on proposal pressure. The schedule for the latest e-VLBI run can be found here.

Note the time reserved for science projects is 13:00-13:00 UTC.

Year

Start time 09:00 UT

End time 13:00 UTC Comments
2024 Tue 3 Dec Wed 4 Dec  
2024 Wed 4 Dec Thu 5 Dec optional
2024 Tue 12 Nov Wed 13 Nov  
2024 Wed 13 Nov Thu 14 Nov optional
2024 Mon 7 Oct Tue 8 Oct  
2024 Tue 8 Oct Wed 9 Oct optional
2024 Wed 18 Sept Thu 19 Sept  
2024 Thu 19 Sept Fri 20 Sept optional
2024 Tue 18 Jun Wed 19 Jun  
2024 Wed 19 Jun Thu 20 Jun optional
2024 Tue 14 May Wed 15 May  
2024 Wed 15 May Thu 16 May optional
2024 Tue 9 Apr Wed 10 Apr  
2024 Wed 10 Apr Thu 11 Apr optional
2024 Tue 19 Mar Wed 20 Mar  
2024 Wed 20 Mar Thu 21 Mar optional
2024 Tue 6 Feb Wed 7 Feb  
2024 Wed 7 Feb Thu 8 Feb optional
2024 Tue 16 Jan Wed 17 Jan  
2024 Wed 17 Jan Thu 18 Jan optional
       
2023 Tue 5 Dec Wed 6 Dec  
2023 Wed 6 Dec (13:00) Thu 1 Dec  optional
2023 Tue 14 Nov Wed 15 Nov  
2023 Wed 15 Nov (13:00) Thu 16 Nov optional
2023 Wed 4 Oct Thu 5 Oct  
2023 Thu 5 Oct (13:00) Fri 6 Oct optional
2023 Tue 19 Sept Wed 20 Sept  
2023 Wed 20 Sept Thu 21 Sept optional
2023 Tue 27 June Wed 28 June  
2023 Wed 28 June (13:00) Thu 29 June optional
2023 Tue 16 May Wed 17 May  
2023 Wed 17 May (13:00) Thu 18 May optional
2023 Tue 18 Apr Wed 19 Apr  
2023 Wed 19 Apr (13:00) Thu 20 Apr optional
2023 Tue 28 Mar Wed 29 Mar  
2023 Wed 29 Mar (13:00) Thu 30 Mar optional
2023 Tue 14 Feb Wed 15 Feb  
2023 Wed 15 Feb (13:00) Thu 16 Feb optional
2023 Tue 17 Jan Wed 18 Jan  
2023 Wed 18 Jan (13:00) Thu 19 Jan optional
       
2022 Tue 6 Dec Wed 7 Dec  
2022 Tue 15 Nov Wed 16 Nov  
2022 Thu 13 Oct Fri 14 Oct  
2022 Tue 20 Sept Wed 21 Sept  
2022 Tue 21 June Wed 22 June  
2022 Tue 10 May Wed 11 May  
2022 Tue 12 Apr Wed 13 Apr  
2022 Tue 22 Mar Wed 23 Mar  
2022 Tue 15 Feb Wed 16 Feb  
2022 Tue 18 Jan Wed 19 Jan  

 

Scheduled EVN-lite subarray sessions 

For the EVN-lite subarray pilot in 2023, a background program has been approved (EK053, "PRECISE"). The observing epochs are listed below with the precise codes because of the large number of expected epochs. There may be an opportunity to activate already approved EVN  trigger projects, if the trigger is approved, the available array meets proposal requirements, and the GST ranges are suitable. Up to a maximum of 12x6h trigger projects may be supported in 2023, with a trigger request approved up to 3 days before the EVN-lite session starts (to be received by 8:00 UT). The observations are in the L-band. C-band triggers are possible in principle, but a receiver change may not be possible at all stations. Also, local arrangements with Effelsberg must take place by the proposing team. The trigger request should be sent to the EVN PC Chair, with a cc to the EVN Scheduler Alastair Gunn and the Head of Operations and Support at JIVE, Bob Campbell.

 

Code Year Start time (UTC) End time (UTC) Stations
PR287A 2023 30 July 06:00 30 July 16:00 Ef Tr Wb Ur Mc Nt eMerlin
PR286A 2023 22 July 06:00 22 July 16:00 Ef Tr Wb Ur Mc Nt eMerlin
PR285A 2023 14 July 22:30 15 July 09:30 Ef Tr Wb Ur Mc Nt eMerlin
PR284A 2023 9 July 19:00 10 July 05:00 Ef Tr Wb Ur T6 Mc Nt eMerlin  
PR283A 2023 2 July 06:00 2 July 16:00 Ef Tr Wb Ur T6 Mc Nt eMerlin
PR282A 2023 25 June 12:00 25 June 22:00 Ef O8 Tr Wb Ur T6 Mc Nt
PR281A 2023 18 June 14:30 18 June 20:00 Ef Tr Wb Ur Mc Nt eMerlin
PR280A 2023 12 June 15:00 12 June 24:00 Ef O8 Tr Wb Ur Mc eMerlin
PR278A 2023 23 May 15:00 23 May 22:00 Ef O8 Tr Wb Ur Mc Nt eMerlin
PR277A 2023 20 May 11:30 20 May 22:00 Ef O8 Tr Wb Ur Mc Nt eMerlin
PR276A 2023 14 May 13:00 14 May 23:00 Ef O8 Tr Wb Ur McNt eMerlin
PR275A 2023 2 May 15:00 3 May 01:00 Ef Tr Wb Ur T6 eMerlin
PR274A 2023 29 April 15:00 30 April 01:00 Ef O8 Tr Wb Ur Mc Nt T6 eMerlin
PR273A 2023 24 April 16:00 24 April 23:00 Ef O8 Tr Wb Ur Mc Nt eMerlin
PR272A 2023 15 April 14:00 15 April 24:00 Ef O8 Tr Wb Ur Mc Nt eMerlin
PR271A 2023 14 April 10:30 14 April 15:30 Ef O8 Tr Wb Ur Mc Nt eMerlin
PR270A 2023 10 April 12:00 11 April 24:00 Ef O8 Tr Wb Ur Mc Nt eMerlin
PR269A 2023 25 Mar 15:00 26 Mar 01:00 Ef O8Tr Wb    Mc    Merlin
PR268A 2023 19 Mar 14:00 20 Mar 24:00 Ef O8Tr Wb T6 Mc Nt Merlin
PR267A 2023 12 Mar 11:30 12 Mar 21:30 Ef O8Tr Wb    Mc Nt Merlin
PR266A 2023 28 Feb 22:00 1 Mar 08:00 Ef O8Tr Wb T6 Mc Nt
PR265A 2023 18 Feb 19:00  19 Feb 05:00 Ef O8 Tr Wb Mc Nt JBO
PR264A 2023 12 Feb 19:00  13 Feb 05:00 Ef O8 Tr Wb Mc Nt JBO(maybe)
PR263A 2023 4 Feb 19:00  5 Feb 05:00  Ef O8 Tr Wb Mc Nt JBO(maybe)

 

 

Scheduled out-of-session observations

Scheduled out-of-session observations can be found via the following link.

 

JIVE keeps a public archive of previous block schedules for: