p XL-Calibur Image Gallery: Launch

XL-Calibur Image Gallery: Launch

Launch Dates
June 2022 December 2018 Movies

XL-Calibur Logo

XL-Calibur in 2022 (Kiruna, Sweden launch)

XL-Calibur ready to launch
XL-Calibur payload on the launcher (Kiruna, Sweden).

XL-Calibur team and WUStL banner at Kiruna, June 24 2022
XL-Calibur team members in front of the assembled telescope and gondola in preparation for launch, June 24, 2022 (Kiruna, Sweden). [Left to right: Dennis Huelsman, Nicole Rodriguez, Andrew West, Lindsey Lisalda, Dana Braun, Richard Bose, Ephraim Gau, and Henric Krawcyznski (Principal Investigator)]

XL-Calibur mounted to the balloon rigging
XL-Calibur payload assembled and connected to balloon rigging in preparation for launch, June 24, 2022 (Kiruna, Sweden).

XL-Calibur launch on 12 July 2022
The launch of XL-Calibur on 12 July 2022. The launch occurred in the very early hours, but since Kiruna is above the Arctic Circle, it has 24 hours of daylight in summer. The balloon has just been released and the rigging lines connecting it to the launcher carrying XL-Calibur is laid out on a mat to prevent any abrasive to the lines as the balloon lifts off. The payload is released with the balloon is directly above the launcher, which is running its engine to manuveur as necessary at the last moment for release. See the YouTube video (below) to see the process in action.

View from XL-Calibur in flight, 12 July 2022
The view from XL-Calibur in flight taken by a camera attached to the balloon rigging and pointed towards the X-ray mirror/star tracker end of the telescope, 12 July 2022.

XL-Calibur in flight at 35 km altitude, as seen from Norway
XL-Calibur in flight at altitude (roughly 35 km) over Norway. Note that the balloon is fully inflated. Stratospheric wind circulation is taking the balloon (as planned) westward with a near-constant latitude over Norway, Iceland, Greenland, and Northern Canada. Photograph by Jon Jakobsen.

View from XL-Calibur in flight, 12 July 2022
The balloon was seen at its cruising altitude by various people as it traversed the North Atlantic, passing north of Iceland and over the southern tip of Greenland. Here it is seen in Nunavat Province in Canada’s northeast. Photograph by Haley John Shimout Anaruaq.

View from XL-Calibur in flight, 12 July 2022
XL-Calibur on the ground after landing in Canada’s Northwest Territories. The parachute is disconnected from the gondola on the ground to prevent the wind dragging the instruments. The gondola touched down safely in the open despite landing in a boreal forest.

The flight track of XL-Calibur from launch from Sweden to touchdown in northern Canada
The flight path of XL-Calibur from its launch from Esrange Space Center in Sweden on 12 July 2022 to touchdown several days later in northern Canada .

X-Calibur in December 2018. McMurdo Station, Antarctica

X-Calibur on launcher at McMurdo Station, Dec 2018
X-Calibur (the predecessor to XL-Calibur) on the launcher at McMurdo Station, Antarctica in December 2018.

X-Calibur Hang Test
X-Calibur during a pre-flight hang test at McMurdo Station.

X-Calibur being launched at McMurdo Station, December 2018
X-Calibur launch.

X-Calibur in flight
X-Calibur as it ascended to the stratosphere.

Movies

Rolling XL-Calibur out of the assembly building to set up prelauncn compatability testing
Rolling XL-Calibur out of the assembly building to prepare for mounting to the balloon rigging for a prelaunch compatability “hang test” (49 s; 640 x 360 MP4 (2.5 MB); 1920 x 1080 MP4 (14.7 MB); YouTube ).

XL-Calibur hang test at Columbia Scientific Balloon Facility (Feb 9 2022)
XL-Calibur lift/hang test on Feb 9, 2022 at the Columbia Scientific Balloon Facility (Palestine, Texas) (29 s; 640 x 360 MP4 (2.1 MB); 1280 x 720 MP4 (7.8 MB); YouTube ).

Rolling XL-Calibur back into the assembly building
Rolling back XL-Calibur to the assembly building after the prelaunch compatability test and weather-driven launch postponment (56 s; 640 x 360 MP4 (3.6 MB); 1920 x 1080 MP4 (21.9 MB); YouTube ).

XL-Calibur starts ascent to the stratosphere, 12 July 2022
XL-Calibur being launched from Esrange Space Center on 12 July 2022. The balloon appears only partially inflated at ground level as it expands to a full 1.12 million cubic meters at high altitude (105 s; 854 x 480 MP4 (6.7 MB); 1920 x 1080 MP4 (27.7 MB); YouTube ).