Archive of BTA observation schedules

 2002 

1 half-year

2 half-year

 2003 

1 half-year

2 half-year

 2004 

1 half-year

2 half-year

 2005 

1 half-year

2 half-year

 2006 

1 half-year

2 half-year

 2007 

1 half-year

2 half-year

 2008 

1 half-year

2 half-year

 2009 

1 half-year

2 half-year

 2010 

1 half-year

2 half-year

 2011 

1 half-year

2 half-year

 2012 

1 half-year

2 half-year

 2013 

1 half-year

2 half-year

 2014 

1 half-year

2 half-year

 2015 

1 half-year

2 half-year

 2016 

1 half-year

2 half-year

 2017 

1 half-year

2 half-year

 2018 

1 half-year

2 half-year

 2019 

1 half-year

2 half-year

 2020 

1 half-year

2 half-year

 2021 

1 half-year

2 half-year

 2022 

1 half-year

2 half-year

 2023 

1 half-year

2 half-year

 2024 

1 half-year

2 half-year