Subject: instrument-calibration Impact: data-unavailable Detail: GOME2 monthly measurements of GOME-2 polarisation (PMD) data in raw readout mode (PMDRAW). The AC/O3M SAF Near Real Time Total Column products (Total Column Ozone, the Total Column NO2, and the Tropospheric NO2) will be unavailable. Status: scheduled Issue Time: 2017-04-05 13:11:04.0 Services: GOME-2 Level 1 - Metop-B GOME-2 AHRPT Metop-B AC/O3M SAF - Products Type: Planned Maintenance Ann Nr: 2755 Rev: 2 Start Time: 2017-04-19 11:50:00.0 End Time: 2017-04-19 16:00:00.0