TanDEM-X Blog

A diary of the TanDEM-X formation swapping

09.08.2013

Between 6 and 9 August 2013, and after great preparation, the team of the TanDEM-X mission was excited and ready for the swap formation of the twin satellites TanDEM-X and TerraSAR-X. read more

Formation swapping - Comic about the TanDEM-X mission

30.07.2013

An exciting manoeuvre awaits us. In early August (6–8 August 2013), the two TanDEM-X mission satellites will be reversing their formation. Until now, the TanDEM-X satellite has been circling around its twin, TerraSAR-X, in an anti-clockwise direction; after the reversal, it will circle clockwise. This complicated change to the formation in which they have been flying for almost three years is necessary to observe regions that are difficult to image, such as mountain ranges, from the opposite viewing angle. This blog entry takes an unconventional look at the planned change in formation ... read more

… And that's a wrap!

01.08.2012 | posted by Andrea Schaub

Last week was amazing – the largest ever International Geoscience and Remote Sensing Symposium (IGARSS) was held in Munich. With over 2700 participants from 68 countries, and over 2500 scientific presentations, it was an excellent platform for knowledge exchange and the exploration and discussion of topics related to 'Remote Sensing for a Dynamic Earth'. Some of the highlights of the symposium included ESA's Envisat and upcoming Sentinel missions, the future of Earth observation, and last but not least, DLR's TanDEM-X and TerraSAR-X satellites. read more

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DLR Webcast: Interview with Manfred Zink at IGARSS 2012

26.07.2012

TerraSAR-X and TanDEM-X are exceeding the expectations of the scientific community. Why exactly? And what comes next? During the IGARSS 2012 symposium in Munich, we were able to speak to Manfred Zink, Project Manager of the Ground Segment of the mission. He is responsible for directing the entire mission, from the close flight formation of the TerraSAR-X and TanDEM-X satellites to the creation of the digital elevation model. read more

DLR Webcast: Interview with Marwan Younis at IGARSS 2012

DLR Webcast: Interview with Marwan Younis at IGARSS 2012

25.07.2012

We are still here at IGARSS, giving you more information about 'Remote Sensing for a Dynamic Earth'. We spoke with Marwan Younis, who took some time from an incredibly tight schedule to answer some questions regarding TerraSAR-X and TanDEM-X, as well as Synthetic Aperture Radar (SAR) technologies. read more

Interview with Richard Bamler at IGARSS 2012

DLR Webcast: Interview with Richard Bamler at IGARSS 2012

25.07.2012 | posted by Andrea Schaub

As the Ice Breaker at IGARSS 2012 was starting, we were able to speak with Richard Bamler, Director of DLR’s Remote Sensing Technology Institute. In this webcast, he tells us his views on the importance of remote sensing and its applications. read more

A glimpse of IGARSS 2012 through Flickr

A glimpse of IGARSS 2012 through Flickr

24.07.2012 | posted by Andrea Schaub

Some days ago, before the start of IGARSS 2012, we mentioned that we would try to give you a feel for the symposium. In the past few days, we have been talking to people, visiting stands and capturing some of the essence of this 32nd IGARSS symposium, the second one held in Munich. read more

Congratulations! DLR experts receive IEEE award

Congratulations! DLR experts receive IEEE award

23.07.2012

DLR scientists had reason to celebrate one month ago – the successful TerraSAR-X mission celebrated its fifth anniversary in space. Today, on 23 July, during the Plenary Session at the International Geoscience and Remote Sensing Symposium (IGARSS 2012) in Munich, the hard work of DLR experts involved in the radar satellite TanDEM-X mission has been recognised. Our DLR colleagues were awarded with the ‘IEEE WRG Baker Paper Award’. This award is given annually to scientists who accomplish extraordinary achievements in the field of electrical engineering and computer science. read more

IGARSS 2012

Observing Earth from space - IGARSS 2012

12.07.2012 | posted by Andrea Schaub

The countdown to the International Geoscience and Remote Sensing Symposium, IGARSS 2012, has begun - only 6 days remain. This year, IGARSS will be held at the International Congress Centre in Munich from 22-27 July, and with this blog, we will be reporting on all the breaking announcements and important events. We will do this with written entries, images and webcasts - in which specialists in Earth observation and remote sensing will join us. read more

Where and how does ice move in the ocean?

01.03.2011

TanDEM-X has now begun routine operations, and is working with TerraSAR-X in bistatic mode and recording data for its global digital terrain model. In this post, I look back at an earlier phase of the mission, when this satellite pair orbited the Earth separated by a mere three seconds or 20 kilometres, and each sensor acquired images independently. read more

Baptism of fire for the satellite formation

19.10.2010

Last Thursday, the two German radar satellites of the TanDEM-X formation finally reached their operational orbit configuration, with only a few hundred metres separating them. In this configuration, they act as a unique radar interferometer in space. The next day, on Friday evening, the instruments were switched on, after many careful checks, to acquire the world's first Digital Elevation Model (DEM) data using a free-flying bistatic Synthetic Aperture Radar (SAR) satellite formation. That same night, the jointly acquired data were received and processed by our operational processing chain. read more

Initial reports of success from the control room

13.10.2010

We are off again; the team at the German Space Operation Center (GSOC) and their colleagues from EADS Astrium gathered two days ago in the control room to manage the transition to close formation flight. We began the first manoeuvre on Monday, 11 October 2010; this is referred to as the ‘drift start’ manoeuvre, which gives the TanDEM X satellite (TDX) the necessary momentum to close to a distance of one kilometre behind TerraSAR X (TSX) within a few days. read more

Brasília

TerraSAR-X and TanDEM-X 'chatting' for the first time

27.08.2010

Even though the 'chit chat' between the satellites has so far consisted of no more than the exchange of synchronisation signals – "Hello, here I am!" – that is been all that was needed for the first simultaneous imagery to be captured by TerraSAR-X and TanDEM-X. Since 22 July 2010, TerraSAR-X has been flying ahead of TanDEM-X at a distance of just 20 kilometres, in a formation defined for test purposes and which also affords scope for a special series of radar experiments. They have now completed the first ever experiment with bistatic radar involving two satellites flying together in formation. read more