CalMS Service celebrates more than 3000 served MOUSs

Published: 11 Aug 2023
Helpdesk request

The demand for the European ARC CalMS service ( has been roughly constant since the beginning of 2023 at 100 MOUSs/month. The 3000th MOUS was served at the end of July 2023 (counting since January 2020). The service will continue as it is for the foreseeable future.

For the oldest Cycles, we are working on storing the calibrated MSs on tape to make sure they remain available even when there are no computers anymore to run the corresponding CASA versions. When that point has been reached, your request might be delegated to a tape library service. Details will be announced at a later time.

The CalMS service runs on the European ARC cluster. This cluster will have two scheduled maintenance down-times during which also CalMS will not work. These are 17/08/2023 - 23/08/2023 and 16/10/2023 - 30/10/2023. During these periods, you can still file helpdesk tickets to request calibrated data but the response will of course be delayed until after the down-time has finished (normal response time is between 1 h and 24 h).