Sunrise III: Preparing for the Flight

Sunrise III is currently taking shape in the cleanrooms at MPS. The launch is scheduled for summer of 2022.

July 19, 2021

Checking for Contamination

Before integration into the PFI, the instrument SUSI is checked for contaminations.
June 23, 2021

Secondary Mirror Successfully Installed

The secondary mirror of Sunrise III's telescope has been successfully integrated.
June 23, 2021

Masking Tape to Avoid Damage

Before the secondary mirror is integrated into Sunrise III's telescope, all shap edges of the mounting device are masked with tape to avoid damaging the mirror.
June 23, 2021

Preparations for Integrating the Secondary Mirror

Before the secondary mirror is integrated into Sunrise III's telescope, all dust is vacuumed from the mounting device.
June 23, 2021

The Telescope's Main Mirror

Looking past the (still empty) mounting device for the secondary mirror, you can see the main mirror at the far end of the structure. The main mirror has a diameter of 1 meter and weighs approximately 40 kilograms.
June 23, 2021

Selfie in the Main Mirror

If you take a picture straight through the (still empty) mounting device for the secondary mirror, the result is a "reflection selfie" like this one.
June 23, 2021

Backside of the Telescope's Main Mirror

The honey comb-like structure ensures a low weight (only 40 kg) and at the same time enough stability not to deform even slightly – and to survive the parachute landing from a height of 35 km.
June 23, 2021

Detail of Main Mirror

The backside of the telescope's main mirror sports an elaborate honeycomb-like structure.
June 22, 2021

Sunrise III's Telescope Seen from the Backside

Sunrise III's solar telescope is beginning to take shape in the clean rooms. From this perspective, you can see the backside of the main mirror, which has a diameter of 1 meter.
June 16, 2021

A Glimpse of the Telescope

While work on Sunrise III’s instrument SUSI is continuing (in the front), the telescope is beginning to take shape in an adjoining clean room.
May 27, 2021

Sewing the Insulation for SUFI

The balloon hall at MPS was temporarily converted into a “dressmaker’s workshop”: a professional seamstress from Göttingen sewed the multi-layer insulation for SUFI.

May 27, 2021

SUFI's Multi-Layer Insulation

SUFI's insulation consists of several layers of Betacloth and aluminized Mylar and will protect the instrument from the harsh environment in the stratosphere.
May 27, 2021

Preparations for Sewing SUFI's Insulation

Among other things, the preparations comprised the careful cutting of the different layers.
May 27, 2021

Preparations for Sewing SUFI's Insulation

Everything starts with a plan!
May 21, 2021

Photometric Calibrations

Performing photometric calibrations of UV LEDs that will later be used to calibrate Sunrise III's SUSI instrument.
May 21, 2021

SUFI is Coming Together

SUSI is really coming together and now officially a functioning spectrometer...
May 21, 2021

SUSI's First Spectrum

… as can be seen by this Mercury spectrum recorded by SUSI in the labs at MPS. The Sun's chromosphere emits light of similar wavelengths.
May 10, 2021

A Look into SUSI's Lower Level

A look into SUSI's lower level which was finished today in the cleanrooms at MPS.
May 10, 2021

Checking for Contamination

After SUSI's lower level was finished, it was checked for contamination using UV light.
May 10, 2021

SUSI in Ultraviolet Light

Ultraviolet light is used to check SUSI's lower level for contaminations.
May 10, 2021

Preparing to Put the "Lid" on SUSI

This "lid" will close off SUSI's lower level.
May 10, 2021

SUSI's Lower Level Has Received Its "Lid"

The "lid" has been placed on top of SUSI's lower level.
May 10, 2021

Applying Drops of Glue to SUSI

Carefully and painstakingly applied with the help of a nozzle, single drops of glue ensure that during lift-off and flight of Sunrise III the screws of the SUSI instrument don’t come undone and the cabels stay in place.

May 10, 2021

Drops of Glue on Cabels and Screws

Single drops of glue hold screws and cabels of SUSI in place.
May 10, 2021

Drops of Glue Securing the Screws

Single drops of glue secure these screws of the SUSI instrument.
May 10, 2021

Drops of Glue in Ultraviolet Light

In ultraviolet light all these tony drops glow.
April 20, 2021

Eye to Eye with SUSI

Eye to eye with the lower half of what will become SunriseIII’s instrument SUSI (Sunrise UV Spectropolarimeter and Imager). SUSI is currently under construction at MPS. During the flight of Sunrise III, SUSI will image the Sun’s chromosphere in ultraviolet light.
March 19, 2021

Attaching Insulation to PFI's Back Side

Hanging from a crane in the cleanrooms at MPS, Sunrise III’ s box for the post focal instrumentation (PFI) has received its back wall and thermal insulation.

March 19, 2021

Attaching Insulation to PFI's Back Side

Hanging from a crane in the cleanrooms at MPS, Sunrise III’ s box for the post focal instrumentation (PFI) has received its back wall and thermal insulation.

March 19, 2021

PFI Has Received its Back Wall

Hanging from a crane in the cleanrooms at MPS, Sunrise III’ s box for the post focal instrumentation has received its back wall and thermal insulation.

March 12, 2021

Completing the Frame of the PFI

Sunrise III’s box for postfocal instrumentation (PFI) is taking shape at MPS. In the next months, those “shelves” will be filled with science instruments…
March 12, 2021

Completing the Frame of the PFI

Sunrise III’s box for postfocal instrumentation (PFI) is taking shape at MPS. In the next months, those “shelves” will be filled with science instruments…

March 02, 2021

Fisheye View of Work on ISLID

Fisheye view of the ongoing work and the Sunrise III Image Stabilization and Light Distribution Unit (ISLiD) in the cleanrooms at MPS. Currently, ISLiD is positioned under a clean tent to ensure an extra clean environment.

March 02, 2021

Fisheye View of ISLiD

Fisheye view of the ongoing work and the Sunrise III Image Stabilization and Light Distribution Unit (ISLiD) in the cleanrooms at MPS. Currently, ISLiD is positioned under a clean tent to ensure an extra clean environment.

February 24, 2021

CWS Integrated into ISLiD

The Correlating Wavefront Sensor (CWS) has been successfully integrated into Sunrise III's Image Stabilization and Light Distribution (ISLiD) Unit.
February 24, 2021

CWS Integrated into ISLiD

The Correlating Wavefront Sensor (CWS) has been successfully integrated into Sunrise III's Image Stabilization and Light Distribution (ISLiD) Unit.
February 03, 2021

ISLiD is Taking Shape

Step by step Sunrise III‘s Image Stabilization and Light Distribution (ISLiD) Unit is taking shape in the cleanrooms at MPS. During flight, ISLiD will transfer sunlight from the 1m-telescope to the 3 scientific instruments.
February 03, 2021

ISLiD is Taking Shape

Step by step Sunrise III‘s Image Stabilization and Light Distribution (ISLiD) Unit is taking shape in the cleanrooms at MPS. During flight, ISLiD will transfer sunlight from the 1m-telescope to the 3 scientific instruments.
February 03, 2021

ISLiD is Taking Shape

Step by step Sunrise III‘s Image Stabilization and Light Distribution (ISLiD) Unit is taking shape in the cleanrooms at MPS. During flight, ISLiD will transfer sunlight from the 1m-telescope to the 3 scientific instruments.
January 21, 2021

Green Light for TuMag

Sunrise III’s Tunable Magnetograph (TuMag) provided by a consortium led by the Instituto de Astrofísica de Andalucía during test in the clean rooms at MPS. TuMag will use a green Magnesium line to measure the magnetic fields in the Sun’s chromosphere.
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