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Configuration Plans and Proposal Deadlines

VLA Configuration Plans and Proposal Deadlines

The antennas in the Karl G. Jansky Very Large Array (VLA) are placed in specific configurations - see the Introduction to the VLA OSS.

The NRAO has a semester system with proposal deadlines Feb 1 and Aug 1. If a deadline should fall on a holiday or weekend, it moves to the next working day.  Requests can be made for a VLA configuration linked to a future deadline, as long as a configuration within the semester of the call is also requested.

For the next proposal deadline we refer to the following table.  The Call for Proposals goes out approximately 1 month prior to the deadline.  A plot showing the estimated amount of science time available per LST hour can be viewed by clicking on a particular configuration.

VLA Configuration Plans and Proposal Deadlines
(Click on the configurations to see a plot of the estimated available observing hours as a function of LST and weather conditions.)

Semester

Observing Period

Configuration

Proposal Deadline

2026A 2026 June 19 - 2026 Sep 14 D 2025 Jul 29
2026A 2026 Feb 20 - 2026 Jun 01* A 2025 Jul 29
-- 2026 Jan 23 - 2026 Feb 09 BnA --
2025B 2025 Sep 10 - 2026 Jan 19* B 2025 Jan 29
2025A 2025 May 29 - 2025 Aug 25* C 2024 Jul 31
2025A 2025 Feb 21 - 2025 May 19* D 2024 Jul 31
2024B 2024 Oct 18 - 2025 Feb 03* A 2024 Jan 31
-- 2024 Sep 20 - 2024 Oct 07* BnA --
2024A 2024 May 08 - 2024 Sep 16* B 2023 Aug 02
2024A 2024 Jan 25 - 2024 Apr 22 C 2023 Aug 02
2023B 2023 Oct 20 - 2024 Jan 15 D 2023 Feb 01
2023A 2023 Jun 30 - 2023 Oct 02 A 2022 Aug 01
-- 2023 Jun 02 - 2023 Jun 19
BnA --
2023A 2023 Jan 19 - 2023 May 29
B 2022 Aug 01
2022B 2022 Oct 06 - 2023 Jan 03 C 2022 Feb 01
2022A 2022 Jul 22 - 2022 Sep 26 D 2021 Aug 02
2022A 2022 Mar 04 - 2022 Jul 05 A 2021 Aug 02
-- 2022 Feb 04 - 2022 Feb 22 BnA --
2021B 2021 Sep 29 - 2022 Jan 31 B 2021 Feb 01
2021A 2021 Jun 10 - 2021 Sep 13 C 2020 Aug 03
2021A 2021 Mar 20 - 2021 May 31 D 2020 Aug 03
2020B 2020 Dec 7 - 2021 Mar 01 A 2020 Feb 03
-- 2020 Oct 23  - 2020 Nov 09 BnA --
2020A 2020 Jun 24 - 2020 Oct 19 B 2019 Aug 01
2020A 2020 Feb 06 - 2020 Jun 08 C 2019 Aug 01
2019B 2019 Nov 08 - 2020 Jan 27 D 2019 Feb 01
2019A 2019 Aug 02 - 2019 Oct 21 A 2018 Aug 01
-- 2019 Jul 05 - 2019 Jul 22 BnA --
2019A 2019 Feb 20 - 2019 Jul 01 B 2018 Aug 01
2018B 2018 Nov 19 - 2019 Feb 04 C 2018 Feb 01
2018A 2018 Aug 31 - 2018 Nov 13 D 2017 Aug 01
2018A 2018 Mar 02 - 2018 Jun 11 A 2017 Aug 01
-- 2018 Feb 02 - 2018 Feb 19 BnA --
2017B 2017 Sep 13 - 2018 Jan 29 B 2017 Feb 01
2017A 2017 May 25 - 2017 Aug 28 C 2016 Aug 01
2017A 2017 Feb 10 - 2017 May 15 D 2016 Aug 01
2016B 2016 Sep 23 - 2017 Jan 23 A 2016 Feb 01
2016A 2016 May 27 - 2016 Sep 05 B 2015 Aug 03
2016A 2016 Apr 29 - 2016 May 16 CnB 2015 Aug 03
2016A 2016 Feb 05 - 2016 Apr 25 C 2015 Aug 03
2015B 2016 Jan 08 - 2016 Jan 25 DnC 2015 Feb 02
2015B 2015 Oct 13 - 2016 Jan 04 D 2015 Feb 02

* - dates preliminary

† - BnA configuration reserved exclusively for VLA Sky Survey

 

VLA LST at Midnight Mountain Time (hours)

Jan 1Feb 1Mar 1Apr 1May 1Jun 1
6.4 8.4 10.4 11.4 13.4 15.4
Jul 1Aug 1Sep 1Oct 1Nov 1Dec 1
17.4 19.4 21.4 23.4 1.4 4.4