The Copernicus Sentinel-2B acquisition on 12 April with sensing time between 00:55:08 and 00:56:06 - relevant to orbit 10953 - has been lost due to a collision avoidance manoeuvre executed between 11 April at 23:21:36 and 12 April at 01:20:34 UTC.

The complete drying-up of Lake Aculeo in Chile was captured by the Copernicus Sentinel-2 satellite, enabling scientists to follow the water surface extent at high frequency, and thus witness this dramatic loss.

Due to decontamination activities of the Sea and Land Surface Temperature Radiometer (SLSTR) instrument on Copernicus Sentinel-3B, SLSTR products will be degraded and/or missing within the sensing time window of 11 to 17 April 2019.

Records show that, on average, global sea level rose by 3.2 mm a year between 1993 and 2018, but hidden within this average is the fact that the rate of rise has been accelerating over the last few years. Taking measurements of the height of the sea surface is essential to monitoring this worrying trend – and the Copernicus Sentinel-6 mission is on the way to being ready to do just this.

A corrective maintenance to fix a problem on the Copernicus Open Access Hub, caused a service interruption on 11 April from 09:59 to 11:35 UTC.

Due to an issue at Ground Segment level on 5 April 2019, following Near Real Time/Short Time Critical and Non Time critical Copernicus Sentinel-3A data have been missed:

• SLSTR  from 20190405T12:04:47 UTC to 20190405T12:38:14 UTC (gap propagated to entire SYN chain)
• SRAL from 20190405T12:04:47 UTC to 20190405T12:29:45 UTC
• OLC from 20190405T12:04:47 UTC to 20190405T12:14:43 UTC.

All Copernicus Sentinel-2A products related to orbit 19751 with sensing time between 06:50:06 and 07:52:24 UTC on 4 April are affected by a considerable geolocation inaccuracy due to a collision avoidance manoeuvre, which was executed between 06:23:05 and 08:22:17.

NO2 data from Copernicus Sentinel-5P are now processed with an improved processor (version 01.03.00).