12 May 2021 Information about current status of OS-NSC system Print Email Map of the NSC Arch as of 03 December 2016 Map of the NSC Arch as of 11 May 2021 Aerosols behavior under the NSC NSC-OS site plan 214B 11.04.21-12.05.21 430B 11.04.21-12.05.21 529B 11.04.21-12.05.21