Year Planned Launch Budget
(billion US$)
1997 2007 0.5
1998 2007 1
1999 2007 – 2008 1
2000 2009 1.8
2002 2010 2.5
2003 2011 2.5
2005 2013 3
2006 2014 4.5
2008 Preliminary Design Review
2008 2014 5.1
2010 Critical Design Review
2010 2015 – 2016 6.5
2011 2018 8.7
2013 2018 8.8
2017 2019 8.8
2018 2020 >8.8
2019 Mar-21 9.66
2021 Dec-21 9.7