Subject: instrument-calibration Impact: data-unavailable Detail: SEM MEPED in flight calibration. Status: scheduled Issue Time: 2017-09-13 15:25:55.0 Services: SEM L0 - Metop-A SEM AHRPT Metop-A Type: Planned Maintenance Ann Nr: 3177 Rev: 1 Start Time: 2017-09-19 09:00:00.0 End Time: 2017-09-21 09:00:00.0 Satellites: MET-9