The VLBA Observational Status Summary (OSS) is a comprehensive description of the VLBA instrument and typically is updated preceding each Call for Proposals. The following table provides links to the versions appropriate to recent observing periods.
Only the current version, at the top of the table, is suitable for proposing and planning future VLBA observations. Older versions are maintained to support scientific research based on archival VLBA observations.
|
Observing Period |
|
| Proposal Deadline | from | to | OSS Version |
|---|
| Feb-2024 |
Aug 2024 |
Jan 2025 |
2024B |
| Aug-2023 |
Feb 2024 |
Jul 2024 |
2024A |
| Feb-2023 |
Aug 2023 |
Jan 2024 |
2023B |
| Aug-2022 |
Feb 2023 |
Jul 2023 |
2023A |
| Feb-2022 |
Aug 2022 |
Jan 2023 |
2022B |
| Aug-2021 |
Feb 2022 |
Jul 2022 |
2022A |
| Feb-2021 |
Aug 2021 |
Jan 2022 |
2021B |
| Aug-2020 |
Feb 2021 |
Jul 2021 |
2021A |
| Feb-2020 |
Aug 2020 |
Jan 2021 |
2020B |
| Aug-2019 |
Feb 2020 |
Jul 2020 |
2020A |
| Feb-2019 |
Aug 2019 |
Jan 2020 |
2019B |
| Aug-2018 |
Feb 2019 |
Jul 2019 |
2019A |
| Feb-2018 |
Aug 2018 |
Jan 2019 |
2018B |
| Aug-2017 |
Feb 2018 |
Jul 2018 |
2018A |
| Feb-2017 |
Aug 2017 |
Jan 2018 |
2017B |
| Aug-2016 |
Feb 2017 |
Jul 2017 |
2017A |
| Feb-2016 |
Aug 2016 |
Jan 2017 |
2016B |
| Aug-2015 |
Feb 2016 |
Jul 2016 |
2016A |
| Feb-2015 |
Aug 2015 |
Jan 2016 |
2015B |
| Aug-2014 |
Jan 2015 |
July 2015 |
2015A |
| Feb-2014 |
Aug 2014 |
Jan 2015 |
2014B |
| Aug-2013 |
Feb 2014 |
July 2014 |
2014A |
| Feb-2013 |
Aug 2013 |
Jan 2014 |
2013B
|
| Aug-2012 |
Feb 2013 |
July 2013 |
2013A |
| Feb-2012 |
Aug 2012 |
Jan 2013 |
2012B |
| Aug-2011 |
Feb 2012 |
July 2012 |
2012A |
| Feb-2011 |
July 2011 |
Jan 2012 |
2011B |
| Oct-2010 |
Jan 2011 |
May 2011 |
2011A |
| June-2010 |
Sept 2010 |
Jan 2011 |
2010C |
| Feb-2010 |
May 2010 |
Sept 2010 |
2010B |
| Oct-2009 |
Feb 2010 |
May 2010 |
2010A |
| Oct-2008 |
Feb 2009 |
May 2009 |
2009A |
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