Subject: instrument-maintenance Impact: data-unavailable Detail: During the indicated period, the GRAS receiver onboard Metop-A will undergo tracking parameter change to improve the signal characteristics of rising occultations. During this period, a short outage of up to 10 minutes of science data is expected. A more specific time will be provided closer to the planned date. Status: scheduled Issue Time: 2018-07-11 15:10:39.0 Services: GRAS Level 1 - Metop-A GRAS AHRPT Metop-A Type: Planned Maintenance Ann Nr: 3981 Rev: 1 Start Time: 2018-08-01 08:00:00.0 End Time: 2018-08-01 15:00:00.0 Satellites: Metop-B Subsystem: GRAS