Table:
text: RBMK
List of RBMK reactors
List of RBMK reactors
Location_ Reactor_type Status_ Net_Capacity_MWe Gross_Capacity_MWe_
Kursk-1 RBMK-1000 operational until 2021 925 1000
Kursk-2 RBMK-1000 operational until 2024 925 1000
Kursk-3 RBMK-1000 operational until March 2014 925 1000
Kursk-4 RBMK-1000 operational until February 2016 925 1000
Kursk-5 MKER-1000 construction begin was 1985, since then shelved 925 1000
Kursk-6 RBMK-1000 construction cancelled in 1993 925 1000
Leningrad-1 RBMK-1000 operational 925 1000
Leningrad-2 RBMK-1000 operational until 2021 925 1000
Leningrad-3 RBMK-1000 operational until June 2025 925 1000
Leningrad-4 RBMK-1000 operational until August 2026 925 1000
Smolensk-1 RBMK-1000 operational until December 2022 925 1000
Smolensk-2 RBMK-1000 operational until July 2015 925 1000
Smolensk-3 RBMK-1000 operational until July 2023 925 1000
Smolensk-4 RBMK-1000 construction cancelled in 1993 925 1000

Question: Which reactor is the only one operating at RBMK until August 2026?